Missing values are recoded into missing values higher than any nonmissing values, with their order preserved. You can use recoding to produce different values or codes for a variable. Click data, select cases, select all cases, and click ok. In the output variable box, type in a name for the new grouped variable. Written and illustrated tutorials for the statistical software spss. You cannot recode numeric and string variables together. The general problem is to indicate the values in the spsscopy statement. First, if you are creating cutpoints for a date variable, use the visual binner transform visual binner. Add variable to variable output place names and labels for the new variables, such as agegroup, then click the change button to notify spss variables that you want to recode.
Recoding into the same variable is not really much different from recoding into different variables. To recode values of a variable into a new variable. Using ibm spss statistics for research methods and social. Click old and new values and specify how to recode values. May 06, 2015 this video demonstrates using the recode into different variables feature in spss. This tutorial covers the recode into different variable and recode into same variable. If you select multiple variables, they must all be the same type. When recode creates one or more new variables with a new classi.
Transform data compute variables maxqda the art of data. You can also go to transform recode into same variables to recode data, however this will overwrite the original data, so if you are not confident with recoding data it is safer to use the recode into different variables option. This video demonstrates using the recode into same variables feature in spss. In this example, we will transform the major if not psychology variable again. Firstly, recode command can take in and output multiple variables. These variables may be string variables or they may be numeric. Recoding variables in spss menus and syntax the analysis. We may want to use different cut off points for male and female respondents. If blanks are not specified, the values are rightpadded.
Klik transform, kemudian klik recode variable into atau same variable, jika kita klik into same variable maka variabel umur asal akan hilang dan digantikan dengan variabel katagorik, sedangkan bila kita klik recode into different variable. Move it into the input variable output variable box by clicking on the arrow button. The recode into different variables dialog box appears. The general problem is to indicate the values in the spss copy statement. Transforming or recoding numeric variables into converted numeric or catergorical variables. Recoding variables in spss statistics recoding a given. Now, automatic recode worksa little differently from some of these others. View our tutorials for reading, cleaning, arranging, and manipulating data in spss. Note that this dialog window allows you to recode specific values, ranges of values, and missing values into new values. In almost every situation, you want to use into different variables. If you select multiple variables, they must be the same type numeric or string.
Working with data spss tutorials libguides at kent. I have an spss datafile which separated responses from two groups of participants on the same survey question into two variables in spss i. Does anyone have a r function that works in the same way as spss. Recoding variables spss tutorials libguides at kent. How to recode data in spss york st john university. The above examples illustrate how to recode variables into the same variables. Aug 06, 2015 vao menu transform recodeinto different variables m.
Though the first example provides in that link recodes into the same variables, an equivalent command to recode into different variables would be. If you select multiple variables, they must be of the same type numeric or string. The data given below represents the scores of 10 students in a final examination. From transform menu recode into same variable old and new variables system missing in value space add the value you want to replace the missing data with continue ok. In most cases, its unadvisable to recode into the same variables. If the into keyword is present followed by a list of target variables the result is stored into the target variables list one or more variables, otherwise the variables are changed in place. Now in its fifth edition, william wagners using spss for social statistics and research methods has come to be trusted as a reliable and studentfriendly resource for those learning to use the spss software for the first time. However, if you wish to recode these variables into new variables, for each variable a separate recode command line is necessary. Spss do if change variables for a selection of cases. Recoding variables data from surveys may need to be recoded before they can be analyzed. You may have noticed earlierwhen we were recoding variables,that when we went to the transform menu,underneath the recode into same and different variableswas an alluring alternative,and thats the automatic recode. To achieve the outcomes obtained from spss when using transform recoding into different variables, see how to recode into a new variable. Recoding variables in spss statistics single values laerd.
Recoding a variable can be used to transform an existing variable into a different form based on certain criteria. Using ibm spss statistics for research methods and social science statistics wagner w. The command i nto same variable replaces existing data with new values, but the command into different variables adds a new variable to the data set. When you press continue, your new values replace the old values.
The left column lists all of the variables in your dataset. Recoding numeric variables recode v1 to v3 01 10 2,31 99 elsesysmis qvar1 thru 516 thru 10211 thru hi3else0. On the menu transform recode into different variables. As the name implies, recode means replace some or all codes of a variable by new, different codes. From transform menu recode into same variable old and new variables system missing in value space add the value you want to replace the missing data with continue. Transforming and recoding variables in jamovi jamovi. 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. Recoding variables in spss statistics recoding data into. We recommend recoding into a different variable, allowing you to retain the original variable. In spss, values determine both how means are computed and how percentages are computed on tables. What automatic recode does is, its not recoding the cases,its not ranking.
We use the latter, since that allows us to create a new variable from the original variable and in so doing leave the original data intact. You may have noticed earlierwhen we were recoding variables,that when we went to the transform menu,underneath the recode into same and different variables was an alluring alternative,and thats the automatic recode. 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. The instructions below will show you how to recode variables. After a transform has been created, its available from the list and can be shared easily across multiple transformed variables. Click the arrow in the center to move the selected variable to the center text box, b. This video demonstrates using the recode into different variables feature in spss.
Recode into same variables and recode into different variables. Using spss to screen data east carolina university. Published with written permission from spss statistics, ibm corporation. Change the coding of a variable using recode into same. Recoding variables in spss menus and syntax the analysis factor.
Jul 23, 20 a step by step guide to recoding age variables into generational groups in spss. Conditional expressions can include variable names, constants, arithmetic operators, numeric and other functions, logical variables, and relational operators. Recoding variables in spss statistics introduction. Recoding variables in spss statistics single values.
The recode into different variables window will appear. Recode into same variables feature in spss youtube. Optionally, you can define a subset of cases to recode. Recode scale variable into categories in spss duration. This is a tutorial on how to use the recode into same or different variables function in spss pasw. To recode into different variables, click transform recode into different variables. Maybe we should recode all the scores of 5 to 4 on this variable. Do not forget to remember the change button if not recode your command will fail. Recode v1 to v3 01 10 2,31 99 elsesysmis into w1 to w3. Do not forget to remember the change button if not recode.
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. In this tutorial, well discuss how to compute variables in spss using numeric expressions, builtin functions, and conditional logic. The compute variable window will open where you will specify how to calculate your new variable. If you want to recode variables into different variables, add an into command, with your new variables names at the end. May, 2015 this video demonstrates using the recode into same variables feature in spss. Say wed like to convert peoples monthly income into income classes. To use automated tools for recoding, use automate browse online library create new variables. For example, if you are grouping bmi you might use the name bmigroup. Command recode into same or different variables youtube. It shows you the distribution and allows you to enter cutpoints in the date format of the variable in question. Click arrow button to put your variable into the right window 4.
However, for this procedure only variables, not codes, can be selected, and naturally the definition of a new variable. We need to transform data into different forms as per statisticalresearch needs. If you want to recode variables into different variables, add an into command, with your new variables. You can also recode variables in place into same variables instead of recoding them into new variables. The crosstab above shows that 21% of the domestic cars fall into the high mileage category, while 55% of the foreign cars fit into this category. The numeric variables between and including v1 and v3 are recoded. See the documentation and the example provide here. How do i recode multiple nominal variables into one combined.
Select the variable you wish to recode by clicking it. However, for this procedure only variables, not codes, can be selected, and naturally the definition of a new variable name is omitted. 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. There is an easier way to recode mpg to three categories using generate and recode.
The original variable s being transformed, and the name of the new variable s that the results will be saved as. There are two widely used transformation procedures in ibm spss statistics called compute and recode. Some surveys contain questions that have been reversecoded for checking the consistency of responses. Then, we use recode to convert mpg3a into three categories.
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. Click on t ransform r ecode into different variable. Select the variable that you want to recode from the list at the left by clicking on it. After cloning, we can safely recode into the same variables, leaving the variable order intact and minimizing the need for dictionary modifications after recoding. Overview recode command syntax rules recode command operations recode command into. You may recode into the same variable changing the values, but not the name of the variable or you may recode into a different variable changing the values and the name of the variable. This page is written for spss users, who are trying to replicate the spss features of transform recoding into same variables or transform recoding into different variables. The variables, in this case, need to have the same coding structure. To open the automatic recode procedure, click transform automatic recode. These fields will activate after at least one variable has been added to the variable. Move all your variables into the right hand box and click on old and new values. You can also convert numeric variables to string variables, and vice versa.
In many cases, if is a faster way to accomplish the same results. Transform data compute variables maxqda the art of. For example, if the original variable has 10 nonmissing values, the lowest missing value would be recoded to 11, and the value 11 would be a missing value for the new variable. Dec 11, 2005 the recode command only accepts the numeric value of date variables. Again you choose the variable which you are recoding. As you work more and more with your data in spss, there may come a time when you may want to use the recode into same variables option, but understand that you will lose any data that you overwrite. Whereas when youre using spss recode into different variables range can be manipulated with little concern for the loss of data, recoding into the same variables will actually delete your original data. Recoding into the same variable is performed in the same way as recoding into a new variable, from the menu transform recode into same variable. We recommend recoding into a different variable, allowing you to retain the original variable that your. In spss, recoding categorical string variables to numeric codes and converting blank strings to missing values can be done automatically using automatic recode.
To compute a new variable, click transform compute variable. In spss also exists the possibility to say else copy what returns the same output as r do. You can recode numeric variables into string variables and vice versa. Introduce for example you have age variables which value is 10, 11, 12. Creating and recoding variables stata learning modules. To get spss to fill in all the empty cells, go to transform recode into same variables. Spss recode multiple variables into one variable example. Maybe those people who selected 5 really intended to select 4. Again, you would type in old values and new values. Recode changes to codes of one or more variables varlist1 according to a list of specifications enclosed in parentheses. Transfer the variable you want to recode by selected it and pressing the button, and give the new variable. This post is about recode into different variables.
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