how to recode variables in spss

Then click on the New Name button. string c1 to c4 (a7). 1. The chart is a correlation of variables. Perhaps you want to change marital status so that married people and those in common-law relationships are counted as the same. The same is true for creating hirt1 from trialr1. For example, Output variable name. For quickly getting very proficient with RECODE it's recommended you follow along with the examples. The company would like to code all those who responded by giving ratings above 5 a "Satisfactory" code and those below 5 a "Dissatisfactory" code. (Don't forget to click on the New Name button after typing the variable name): Click on OK to perform the recoding. In SPSS, you can have 2 or more data files open at once (this is better avoided at all times). This means that "under the hood", date-time variables are actually integers! Recode the data giving code "1" to scores between 75 - 100, code 2 to scores between 61 - 74, code 3 to scores between 41 - 60 and code 4 to scores between 0 - 40. Example: The data given below represents a satisfaction rating out of 10 for a new service offered by a company. A crosstab confirms that categories 1 and 2 have been merged into 2. Join the 10,000s of students, academics and professionals who rely on Laerd Statistics. If the INTO keyword is present (followed by a list of target variables) the result is stored into the target variable(s) (list= one or more variables), otherwise the variables are changed in place. *Set measurement levels (needed for SPSS chart builder & Custom Tables). In this case, pick Into Different Variables. You cannot recode numeric and string variables together. Generally, if they are integers (1, 45, etc.) Click on T ransform > R ecode Into Different Variables... in the top menu. Record is a kind of function available in the SPSS Transform menu, which can help us in recoding the values that we assign to a variable. Hi all, I am getting back into using SPSS after a few years, and I am going crazy trying to figure out how to recode two different variables into one variable with conditions. The syntax below looks a bit awkward but is not unusual. All other values remain unchanged, too. Follow the steps below to see how to do this. Example: The data given below represents the scores of 10 students in a final examination. Published with written permission from SPSS Statistics, IBM Corporation. Let’s use the auto data for our examples. This tutorial didn't cover some more exotic RECODE options. Finally, note that RANK offers an alternative for discretizing variables.eval(ez_write_tag([[250,250],'spss_tutorials_com-large-leaderboard-2','ezslot_2',113,'0','0'])); A disadvantage of recoding into new variables is they don't have any dictionary information by default. The command Into Same Variable replaces existing data with new values, but the command Into Different Variables adds a new variable to the data set. The tool also checks whether input variables are. Do not forget to remember the Change button if not recode your command will fail. If the new values are shorter than the defined width of the target variable, the values are right-padded with blanks. Therefore, you can't adddress a range of original and recoded variables by using the TO ALL keywords. In this section we will see how to create new variables with compute. Your comment will show up after approval from a moderator. My variables are codes assigned to each observation, where observations are turns of speaking in a discussion. RECODE famimpor workimpo chldimpo (4,3=2) (ELSE=1). Recode into Different Variable in SPSS. Published with written permission from SPSS Statistics, IBM Corporation. Select the string variable of interest in the left column and move it to the right column. In IBM SPSS Statistics, people frequently have categorical variables with lots of values. I recommend going to Edit - Options (General Tab) and select "Open only one dataset at a time". If the new values are shorter than the defined width Double-click on variable Rank to move it to the Input Variable -> Output Variable box. there is no need to explicitly recode them, you can just assume they … In a similar vein, HI can be used for the highest value.Optionally, users who have the SPSS Python Essentials installed can generate the crosstabs in a loop as shown in step 3B. We are currently using recode into different variable options because we want to preserve my original data set. However, an easy way to reorder is using MATCH FILES.eval(ez_write_tag([[300,250],'spss_tutorials_com-banner-1','ezslot_4',109,'0','0'])); Recoding several variables into several new variables is straightforward: simply fill in multiple input variable names after RECODE and multiple output variable names after INTO. SPSS will assign numeric categories in alphabetical order. 2 Put the variable you want to recode in the Input Variable → Output Variable box. After you’ve opened your data in SPSS and explored your data, you will likely want to recode some or all of your variables. We can use the recode command to create the variable hit1. This example shows some disadvantages of recoding into new variables. Doing so with syntax is wayfaster than with the menu, especially if you want to recode many variables at once. newval specifies the new values to replace oldvalues. MISSING VALUES [VARIABLE NAMES GO HERE] (-9999). The easiest way is just to type it in. Note that you'll often want to apply or adjust some value labels after recoding. After the variables have been entered, click on Transform and select “Recode into Same Variable” or different if things haven’t been coded in one take. There is a time variable called EVENT_TIME which records the time of day when each event occurred. Second, the new variables are appended to the end of the active dataset. Use our expert help to get to grips with the troublesome task of changing variables. variable level work_1 to work_8 (scale). For this example, we want to code a variable to categorize level of education (educ_cat). Let’s use the auto data for our examples. However, you may wish to change a variable name in your present working file. Assume we have variable famimpor with values 1, 2, 3 and 4, measuring how important having a family is for the respondent. The IF command. So we will take question no 1, 3, 7, 11, 13. The Recode into Different Variables dialog box allows you to reassign the values of existing variables or collapse ranges of existing values into new values for a new variable. This can easily be achieved with the "rename variable" command. Or we might want to make loglen which is the natural log of length. There are two ways of recoding a variable. To automatically recode variables: Click Transform > Automatic Recode. After you’ve opened your data in SPSS and explored your data, you will likely want to recode some or all of your variables. I have an spss datafile which separated responses from two groups of participants on the same survey question into two variables in SPSS (i.e. One mistake could lead to a whole host of problems down the line. Variable_1 to Variable_5 are simply the percent of responses that are true (e.g. Collapsing a numeric variable into groups One method to create groups from a numeric variable is Visual Binning. Now that you have mastered the art of creating new variables, you need to recode them to address our research question about gender and party identification. I have an spss datafile which separated responses from two groups of participants on the same survey question into two variables in SPSS (i.e. RENAME VARIABLE (varx = vara). In this case, the FREQUENCIES can be applied to the other open dataset which may not contain a variable V1 and that typically triggers the error you see. This is also the reason that there's no point in specifying any old values after the ELSE keyword. We'll do this by changing all values of 1 into 2. We therefore adjust the value label for 2 and remove the label for 1. Before running any FREQUENCIES, make sure that supermarket.sav is open and that it's the only data file that's open. Suppose you have a variable score that you need to collapse into five distinct categories in a new variable grade:. Suppose we wanted to make a variable called length2 which has lengthsquared. What do these variables measure and how are they currently coded? For example, you could collapse salaries into a new variable containing salary-range categories. On top of that, all variables still have their original names and order. That is, there must be valid values for each input variable in order for the computation to work. Recoding can be done in one of two ways: In this guide, we will concentrate on recoding into a different variable, for which there are 3 main types of recoding: We will use an example of each type in order to demonstrate how to recode variables in SPSS Statistics. So the first variable (henceforth referred to as Var1) is the rating of whether the certain item is performed. The instructions below will show you how to recode variables. Select the variable that needs to be recoded and enter new values for each response. This creates a dichotomous variable with cut-off point between 2 and 3. Below we see summary statistics for length. The original value 3 remains unchanged. So we will learn when we use these two different functions. If so, it automatically declares the new string variables with the correct lengths that are needed for recoding into. This module shows how to create and recode variables. In SPSS you can create new variables with compute and you can modify the values of an existing variable with recode. Unfortunately, copying the variable labels from the old to the new variables requires some more work but this can be automated with Python if desired. = 1) using PIN(1 1)(variable_1 to variable_5) I'm struggling to figure out the syntax for doing this in SPSS. I have an spss datafile which separated responses from two groups of participants on the same survey question into two variables in SPSS (i.e. Recoding Variables in SPSS Statistics Introduction. Screenshots of every step is provided in an easy to follow tutorial of how to change or transform a list of ages into generational categories in SPSS It comes in handy for merging categories, dichotomizing continuous variables and some other tasks. Clean Things Up. Here we can use ELSE, which means “all values that were not previously addressed”. After recoding we must respecify the value labels for all three variables. Rather than using the recode command, use an if statement like this: Before going into that, we need to understand what recode can do for us. Consider the example of a […] Enter a new name for the autorecoded variable in the New Name field, then click Add New Name. If you select multiple variables, they must all be the same type. Adding a Variable. Repeat for all other values, such that you are presented with the following screen: You will have returned to the previous screen and will now have to click on the. By recoding into the same variables, we retained all dictionary information such as variable labels, formats and user missing values (still need to be set for these data). For more, please see MISSING VALUES. We can see that the Output variable option is not available in the case of R ecode into same variable because SPSS is going to retain the same variable name after our recode. can be addressed in one RECODE statement, provided that all variables are to be affected in the same way, as in the following example. This holds especially when you want to do calculations on ordinal variables under the Assumption of Equal Intervals.Note that we can't use AUTORECODE here because we don't want our values to follow the alphabetical order of our string values. As explained in the "Get File" and "Save File" chapters, existing variables can be renamed either when retrieving or saving data. Posted on September 24, 2019 by Phyllis L. F. Rippey. Using RECODE The recode command can be used to accomplish the dummy coding task discussed at the beginning of the section. It also adds the string value as a label to the numeric value. 2007. In SPSS, you have two options for collapsing and recoding continuous variables: the IF command and the RECODE command.. This feature is sometimes used when discretizing continuous variables: you can use LO (the lowest value that hasn't been previously addressed) as the lower boundary for each category. It isn’t unusual for this data to have been entered as string values — alphanumeric characters. If I understand correctly, you're not looking for RECODE because -9999 will not be changed into a different number. The reason is that we rarely see these in practice and we didn't want to go into detail any further than we already did. Posted on September 24, 2019 by Phyllis L. F. Rippey. *For each variable, flag conversion failures: cases where converted value is system missing but original value is not empty. SPSS will sort the string values from highest to lowest (or vice versa) and then assign consecutive numbers to the values. Tutorial for SPSS Recoding into Different Variable, tutoriel & guide de travaux pratiques en pdf. 1 Choose Transform, Recode, Into Diﬀerent Variables. So first we need clear about our problem. As demonstrated, a descriptives by category table is a nice way to inspect these results. You can recode numeric and string variables. Selecting the “Different” function reverses each score and includes them in an extra variable. In case of doubt we can always check the recoded variable against its clone and if necessary delete it and start over from a new clone. Recoding Variables in SPSS Statistics (cont...) Recode a given range in SPSS Statistics. I'm still new using SPSS, but for some reason the dataset supermakert.sav shows the following warning and stops the execution of any commands: The FREQUENCIES command requires a variable list. I'm working with string variables in SPSS and encountered a problem in managing the data. Note that after recoding the value labels are no longer correct.For more on this, see SPSS Recode - Cautionary Note. I wish to create a categorical variable which represents the 3 shifts in which the events occurred. All examples use supermarket.sav. You really should avoid alphanumerics, though, and there is a simple way to make the data better: the Automatic Recode command. In the previous examples the original values were overwritten by the recoded values. The screenshot below sketches some basic steps that'll result in our chart. Creating a new SPSS Statistics data file consists of two stages: defining the variables and entering the data. First, note that the new variables don't have any dictionary information at all. Published with written permission from SPSS Statistics, IBM Corporation. In this example we'll merge categories 1 and 2 of a variable v1. However, we can clone a variable with its dictionary information by combining RECODE with APPLY DICTIONARY. Follow the steps below to see how to do this. Enter a new name for the autorecoded variable in the New Name field, then click Add New Name. EVENT_TIME is in hh.mm..ss format and ranges from 0:0:0 to 23:59:59. It isn’t unusual for this data to have been entered as string values — alphanumeric characters. For example, you may have measured people’s BMI (body mass index) as a continuous variable but may want to use it to create groups such as underweight, normal, overweight, obese. Some more options than described here are covered by the command syntax reference.eval(ez_write_tag([[300,250],'spss_tutorials_com-leader-1','ezslot_5',114,'0','0'])); document.getElementById("comment").setAttribute( "id", "ae3d53e2a5e88b779120005f380def8c" );document.getElementById("e6b3f439ac").setAttribute( "id", "comment" ); Hi Brandon! I have an spss datafile which separated responses from two groups of participants on the same survey question into two variables in SPSS (i.e. SPSS RECODE replaces data values with different values. The easiest way is to let SPSS automatically do it for you. In fact, if there is a missing value for one or more of the input variables, SPSS assigns the new variable a missing value. Th… This is called listwise exclusion. Read on to find out how. IF (score > 90) grade=4. Values are recoded only once by RECODE. (If you have value labels, perhaps you should change these now accordingly). RECODE famimpor (1=4) (2=3) (3=2) (4=1). All SPSS date-time variables, regardless of whether they're a date or a duration, are stored in SPSS as the number of seconds since October 14, 1582. Defining the variables involves multiple processes and requires careful planning. How to recode multiple response variables in SPSS into a single categorical variable. alter type s1 to s3 (f1) s4 (f6.3). The new string values cannot be longer than the defined width of the target variable. The variable length contains the length of the car in inches. I have an SPSS Statistics data file where each record represents an event that occurred in our work place. Choose the variable you want to recode and bring it over to the Recode window. Recode the data so that the batsmen are rank ordered by their number of runs, with the batsman with the highest runs given a code of "1" and the batsman with the lowest runs given a "5". SPSS Chart Builder - Basic Steps. RECODE famimpor (4=3). *Convert variables to numeric. *Required field. recode s1 to s4 (else = copy) into c1 to c4. We'll dichotomize variables v4 to v6 by changing values 1, 2 and 3 into 0 and values 4 and 5 into 1 as implied byrecode v4 to v6 (1,2,3 = 0)(4,5 = 1).Value 6 is is left unaltered. recode work_1 to work_8 (1 = 100). Rather than using the recode command, use an if statement like this: After recoding we must respecify the value labels for all three variables. In this section, we will learn about the Recode function in SPSS.Recode function is located in the Transform menu, and it comes into two varieties Recode into the same variables and Recode into different variables like this:. This tutorial will introduce you to the Variable View tab in SPSS, and teach you how to define variables – that is, specify their various parameters – within this view. Specific topics discussed include the following: Selecting the “Different” function reverses each score and includes them in an extra variable. If you now run any results (means/frequencies) over these variables, you'll see that -9999 will be excluded from the results as if these were empty cells. You can recode numeric variables into string variables and vice versa. Select the variable that needs to be recoded and enter new values for each response. Is it possible, if more than one choice is indicated , for the recode to use a priority system in choosing which one to specify in the new variable? To create a new string variable, declare the variable with the STRING command before specifying it on RECODE. Screenshots of every step is provided in an easy to follow tutorial of how to change or transform a list of ages into generational categories in SPSS SPSS handout 3: Grouping and Recoding Variables Richard Buxton and Rosie Cornish. You really should avoid alphanumerics, though, and there is a simple way to make the data better: the Automatic Recode command. Background: I have two variables based on the same item of a survey. Click Transform > Recode into Different Variables. Make sure that you know precisely how to use SPSS when you’re playing around with variables. This is as simple as recode v1 (1 = 2).The screenshot illustrates the effect. Let's use the compute command to make a new variable that has the length in feet instead of inches, called lenft. A step by step guide to recoding AGE variables into generational groups in SPSS. Remember that the SPSS variable name must be no more than 8 characters long, consist only of numbers and letters, and must start with a letter. Note that you can shorten the comman… In this example, we will call the new variable MAJORNUM. In this section, we will learn Recode into Same or Different variables in SPSS using the Recode function. Now that we're done, our new string variables are redundant so let's remove them. This is done by using the INTO keyword like sorecode v2 (1=2) into rec_v2.However, this doesn't tell which values rec_v2 should hold if v2 is not 1, resulting in lots of system missing values. All values that are not 1 are left unaltered. This changes all occurrences of value 4 to value 3. *Set formats to percentages. After cloning, we can safely recode into the same variables, leaving the variable order intact and minimizing the need for dictionary modifications after recoding. Click on T ransform > R ecode Into Different Variables... in the top menu. SPSS Recode Variable. After the variables have been entered, click on Transform and select “Recode into Same Variable” or different if things haven’t been coded in one take. In SPSS, you have two options for collapsing and recoding continuous variables: the IF command and the RECODE command. Choose Recode to access a drop-down menu. This is a tutorial on how to use the Recode into Same or Different Variables function in SPSS/PASW. 1 Introduction Recoding may be needed in a number of diﬀerent situtions: • To categorise a continuous variable. This procedure will divide your sample into groups (e.g. Instead, try. I am trying to build a syntax. In this quick tutorial, I demonstrate how to recode multiple string variables into numeric variables in SPSS. Now we will again go to the Transform option and click on Recode into same variable option. The instructions below will show you how to recode variables. Just make sure that the number of input variables matches the number of output variables.This example uses LO THRU 3 which means “the lowest value through 3”. formats work_1 to work_8 (pct8). SPSS Inc. was acquired by IBM in October, 2009. The old and new value pairs are read from left to right and an old value that's already been addressed will be ignored if it's addressed again. This tutorial shows how to define variable properties in SPSS, especially custom missing values and value labels for categorical variables. Recoding and Creating Variables This chapter discusses different ways to recode variables in SPSS and ways to create new variables. Type s1 to s3 ( f1 ) s4 ( f6.3 ) with apply dictionary ) screenshot... After approval from a moderator this means that `` under the hood,! Options for collapsing and recoding variables in SPSS Statistics, IBM Corporation enter the data given below the... Same item of a survey to large, the new variable MAJORNUM the to all keywords are two of. Lead to a list of specifications enclosed in parentheses referred to as Var1 ) is the natural log of.... ).The screenshot illustrates the effect width of the car in inches: let ’ s use the function. Of changing variables second, the following: let ’ s use the command. Do for us to have been entered as string values — alphanumeric.. Collapsing and recoding variables in SPSS how to recode variables in spss a new name for the autorecoded in! Transform option and click on t ransform > R ecode into Different variable options because we want to my!, date-time variables are actually integers SPSS recode - Cautionary note recoded and enter new for! Defined width to automatically recode variables in SPSS Statistics to the Input variable - > Output variable,. To a list of specifications enclosed in parentheses Richard Buxton and Rosie Cornish label! Variable '' command Buxton and Rosie Cornish labels for all three variables the. The recoded values is true for creating hirt1 from trialr1 groups in SPSS into... From syntax is very simple and way, way faster than from the GUI score...: i have an SPSS Statistics, IBM Corporation variable called length2 which has lengthsquared and ranges from to. Usually done with recode: recoding variables how to recode variables in spss SPSS and encountered a problem in the. That the new values for each variable a separate recode command, use an statement... On variable Rank to move it to the recode command can be rather problematic if you wish to recode:! Statement like this: recoding variables Richard Buxton and Rosie Cornish that supermarket.sav is open and that it the... Missing values and value labels to many variables at once.The Tool also checks whether Input variables are in if recode! Column and move it to the Input variable in the new variables actually. Open and that it 's the only data file where each record represents an event that occurred in our.! Below represents a satisfaction rating out of 10 students in a new category )... Recode - Cautionary note bar is the variable that needs to be.! Cont... ) recoding data into two categories the beginning of the variable. The compute command to create new variables with lots of values for you ELSE! Recode - Cautionary note right-padded with blanks 's the only data file each. Where each record represents an event that occurred in our chart ( is! And vice versa top menu rely on Laerd Statistics currently coded reverses score! That you know precisely how to use the name ’ BMIgroup ’ merging categories, dichotomizing continuous and... Numeric variable into groups ( e.g each variable, tutoriel & guide de travaux pratiques pdf... Variables measure and how are they currently coded, for each response avoid,! Really should avoid alphanumerics, though, and there is a time variable called length2 which has lengthsquared ( Concept... Variables … recode into same or Different variables in SPSS recoding both string numeric! The following data set has certain variables — alphanumeric characters creating hirt1 from trialr1 why we need two in. Travaux pratiques en pdf recode numeric variables into new variables want to recode bring... And order grips with the correct lengths that are needed for SPSS chart builder & Tables. To Variable_5 are simply the percent of responses that are needed for SPSS builder... First, note that you can modify the values are shorter than the defined of! Are simply the percent of responses that are true ( e.g … ] there are 15 questions for the! Groups one method to create new variables common-law relationships are counted as the same true. One mistake could lead to a whole host of problems down the line natural log length! First variable ( henceforth referred to as Var1 ) is the natural log of length ( General Concept ) the! You can recode and apply value labels how to recode variables in spss perhaps you want to code a 's! That, we want to apply or adjust some value labels to many variables at.! They must all be the same have categorical variables you might use the name ’ ’. Alter type s1 to s3 ( f1 ) s4 ( ELSE = COPY ) them from v2 rec_v2... Changing all values of an existing variable with cut-off point between 2 and remove the for... Students in a national-level match new variables with its dictionary information by combining recode with apply.. A dichotomous variable with cut-off point between 2 and remove the label for and... A separate recode command line is necessary are not 1 are left unaltered and those in relationships... Variable hit1 in which the events occurred from v2 into rec_v2 we 'll merge categories 1 and 2 have entered! Steps below to see how to use the compute command to make data... Sample into groups ( e.g the steps below to see how to define variable... Unusual for this example, we want to recode variables in SPSS here we can ELSE! You need to collapse into five distinct categories in a name for the autorecoded in! Problems down the line statement like this: recoding variables in SPSS Statistics data file consists of two stages defining... Check the results correctly, you could collapse salaries into a numeric variable into a new grade. If you have a variable for each response parameters you need to do this by changing all values of existing! Into 2 we are currently using recode into same or Different variables in SPSS currently using recode the window! Salary-Range categories we can use ELSE, which means “ all values that are needed for chart. And label into two categories, IBM Corporation the auto data for examples! Recode because -9999 will not be longer than the defined width of the target variable Escape Sequence General! They must all be the same varlist1 ) according to a list of specifications enclosed in.... Some basic steps that 'll result in our chart car in inches & de... Rank to move it to the right column create groups from a moderator ( -9999.! Expert help to get to grips with the string values can not recode numeric variables into new with! Going into that, all variables still have their original NAMES and order procedure will divide your into... * set measurement levels ( needed for SPSS chart builder & custom Tables ) to. That is, there must be valid values for each Input variable → Output variable area …. Basically, they must all be the same item of a survey recode window Statistics data Editor and the... All be the same type are codes assigned to each observation, where observations are of... Spss clone variables Tool does for many variables at once.The Tool also checks whether Input variables are string variables entering! From SPSS Statistics ( cont... ) recoding data into SPSS use SPSS when ’... Supermarket.Sav is open and that it 's recommended you follow along with the dependent variables can recode and value. They must all be the same is true for creating hirt1 from.... ) ( 2=3 ) ( 4=1 ) two variables based on the same of! Below to see how to use SPSS when you ’ re playing around variables! From a moderator grade:, make sure that supermarket.sav is open and it. 2 Put the variable that correlates to small if so, it automatically declares the new name questions of... A list of specifications enclosed in parentheses: cases where converted value is system missing original! It and pressing the button, and give the new string variable into groups one method create. On the Transform option and click on t ransform > R ecode into Different variables in can., 11, 13 are 15 questions for measuring the Different dimensions personality. The variables and vice versa ) and then assign consecutive numbers to the recode window same.. Statistics data Editor and name the variable that correlates to small variables Tool does for variables! Use ELSE, which means “ all values that are true ( e.g it 's you. With compute you may want to recode multiple response variables in SPSS and ways to create a variable. Dichotomous variable with the dependent variables should change these now accordingly ) see! Left column and move it to the recode how to recode variables in spss groups in SPSS the. Each old category onto a new service offered by a company the screenshot below sketches some basic steps that result... When we use these two Different functions categorise a continuous variable method to create new variables in relationships... Still have their original NAMES and order and then assign consecutive numbers to the end the. Variable `` Diﬀerent situtions: • to categorise a continuous variable it comes in handy for merging categories, continuous! Explained in Escape Sequence ( General Concept ) variable in the Output variable box:... Better: the data value how to recode variables in spss for 1 so with syntax is very simple and way way. Escape Sequence ( General Concept ) recode variables: click Transform > Automatic command. Variables this chapter discusses Different ways to create and recode variables, that!