For example, you can change continuous variables to categorical variables, change scores into rank scores, add a constant to variables, etc. Click on rightarrow button and type in name of new variable, then press change. I wonder if it is possible not only to combine different variables into one variable via compute or transform in spss but to add subcategories to that variable too. To recode into different variables, click transform recode into different variables. Recoding variables in spss menus and syntax the analysis factor. If your variable includes text values, make sure that the numeric values appear onscreen. Move across to the central box the first variable that needs recoding.
Now, automatic recode worksa little differently from some of these others. We recommend recoding into a different variable, allowing you to retain the original variable that your. How do i recode multiple nominal variables into one. Recode v1 to v3 01 10 2,31 99 elsesysmis into w1 to w3.
Recoding into a different variable transforms an original variable into a new variable. You can recode single values, ranges of values, and missing values. Analyze includes all of the commands to carry out statistical analyses and to calculate descriptive statistics. Recode into different variables ibm knowledge center. To perform a dummycoded regression, we first need to create a new variable for the number of groups we have minus one.
The recode command only accepts the numeric value of date variables. First, if you are creating cutpoints for a date variable, use the visual binner transformvisual binner. Grouping and recoding variables richard buxton and rosie cornish. You can define values to recode in this dialog box. Now, under new value select value and type in the code for this group. Recoding variables in spss statistics introduction. Recoding variables spss tutorials libguides at kent. Spss certain things about your data and you will do this in the variable view window. May 06, 2015 this video demonstrates using the recode into different variables feature in spss.
It is convenient to analyze if recoding them into missing. Sep 26, 2012 transforming or recoding numeric variables into converted numeric or catergorical variables. It comes in handy for merging categories, dichotomizing continuous variables and some other tasks. What automatic recode does is, its not recoding the cases,its not ranking. That is, the changes do not overwrite the original variable. Home blog february 2019 spss recode simple tutorial spss recode replaces data values with different values. 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 key differences between spss and q with recoding. Recoding variables in spss menus and syntax the analysis.
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. Click old and new values and specify how to recode values. Hello, i have a column of 20 cells were 19 are blank and one has text in. How to recode data in spss york st john university. I would like to recodetransform all of the blanks to 0 and the one cell that has. The above works because it is intutive for spss to interpret and expand out w1 to w3 to equal w1, w2, w3. Full syntax recode varlist erule erule if in, options. Recode changes to codes of one or more variables varlist1 according to a list of specifications enclosed in parentheses. Introduce for example you have age variables which value is 10, 11, 12. Download and install the spss recode values with value labels tool. You must click the change button for the new variable to.
Spss has 2 functions that allow us to recode variables. You can also convert numeric variables to string variables, and vice versa. An spss companion book to basic practice of statistics 6th edition. To recode into different variables, click transform recode 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. The output variable, the new variable, well call outcome. In order to use these as variables in the example, we will make certain assumptions and methods to prepare the data for the t test.
You cannot recode numeric and string variables together. Creating and recoding variables spss learning modules. In ibm spss statistics, people frequently have categorical variables with lots of values. Spss wont let you type letters into a numeric variable. Transform includes several options to change current variables. This tutorial walks you through its main options, best practices and pitfalls. Jun 12, 2018 spss, transform data, one variable, into ten different variables. Spssx discussion transformrecode variable not working. You type in new variable names on your new variables, i have typed in att1 and. To recode values of a variable into a new variable.
This post is about recode into different variables. In spss, recoding categorical string variables to numeric codes and converting blank strings to missing values can be done automatically using automatic recode. Sometimes its necessary to change several values in your data set. Spss recode multiple variables into one variable example. 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 in almost every situation, you want to use into different variables. The left column lists all of the variables in your dataset. Choose this menu item, select the yeargroup variable from the list on the left hand side and give the output variable the. Dichotomizing a variable in spss columbia university. You can use recoding to produce different values or codes for a variable. If you select multiple variables, they must all be the same type. Do not forget to remember the change button if not recode your command will fail. Recoding variables in spss statistics single values.
You can also recode variables in place into same variables instead of recoding them into new variables. In this video i explain when you should recode the values of variables, why you should do that and how you do it. But the problem is, for some variables, 9 or 99 might be the real values. Hi all, i have seen a couple of times that for some data sets the not answered is coded as 9, 99, 999 and the number of digit of 9 depends on the number of digit of the maximum value of the variable. Its in an excel file, and when you get it over to spss it will automatically be string variables and you are very limited to do statistics on that. Numeric systemmissing values are displayed as periods. Recoding variables in spss statistics recoding a given.
Recoding variables spss tutorials libguides at kent state. Select the variable you wish to recode by clicking it. To do this, click on transform, then recode, and then make sure to click on into different variable. Downloaded the standard class data set click on the link and save the data file. After downloading my survey to spss, i noticed my values for yes no. A step by step guide to recoding age variables into generational groups in spss. Spss, transform data, one variable, into ten different variables. In spss, values determine both how means are computed and how percentages are computed on tables. The instructions below will show you how to recode variables.
The data given below represents the scores of 10 students in a final examination. Though the first example provides in that link recodes into the same variables, an equivalent command to recode into different variables would be. Oct 15, 2018 its in an excel file, and when you get it over to spss it will automatically be string variables and you are very limited to do statistics on that. We use spss to transform the data from both variables. We could do this manually, but spss can do the hard work for us through the menu command. This will create a new variable containing our new grouped values. If youd like to download the sample dataset to work through the examples. Click arrow button to put your variable into the right window 4. 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.
Click over the diff variable, because you want to recode it. Dec 11, 2005 the recode command only accepts the numeric value of date variables. Transforming or recoding numeric variables into converted numeric or catergorical variables. On the menu transform recode into different variables. To do so in spss, we should first click on transform and then recode into different variables. You can recode numeric variables into string variables and vice versa. The recode into different variables window will appear. First, you must choose the variable which you are recoding and name the output variable which will hold your new value. It shows you the distribution and allows you to enter cutpoints in the date format of the variable in question. Enter an output new variable name for each new variable and click change.
The recode command is most often used to transform categorical variables, which are many times value. If you select multiple variables, they must be the same type numeric or. However, if you wish to recode these variables into new variables, for each variable a separate recode command line is necessary. This tutorial will show you how to use spss version 10 to automatically recode variables, manually recode variables, and compute variables. Click the arrow in the center to move the selected variable to the center text box, b. In spss, we sometimes need to reverse code variables so that higher values. You really should avoid alphanumerics, though, and there is a simple way to make the data better.
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. If you select multiple variables, they must be the same type numeric or string. Written and illustrated tutorials for the statistical software spss. First, if you are creating cutpoints for a date variable, use the visual binner transform visual binner. Spss, transform data, one variable, into ten different. Spss tutorial 6 recoding into different variables youtube. Select transform recode into different variables from the menu in spss. One is called, recode into same variables and the second, recode into different variables in the interest of not writing over any data, i recommend that you use the recode into different variables option. Creating and recoding variables stata learning modules. As the name implies, recode means replace some or all codes of a variable by new, different codes. Note that this dialog window allows you to recode specific values, ranges of values, and missing values into new values. It isnt unusual for this data to have been entered as string values alphanumeric characters.
To build an expression, either paste components into the expression field or type directly in the expression field. Remember that you will need to use an end if command at the end of your doloop. This video demonstrates using the recode into different variables feature in spss. Dichotomizing a variable in spss filtering out missing values 1.
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