Its about 400 different drugs, and they can be listed in any of the 20 string variables. 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. Recode into different variables and do if syntax create a new variable without modifying the. In ibm spss statistics, people frequently have categorical variables with lots of values. For a complete example with test data see spss recode multiple variables into one variable example. Suppose that we wanted to break mpg down into three categories. Note the lo and hi are spss keywords that can be used when we do not know the lowest or the highest values of the variable. Using spss and paswrecoding variables wikibooks, open. Systemmissing values and ranges cannot be selected for string variables because neither concept applies to string variables. Recoding multiple variables into one in spss and assigning new.
For example, you could collapse salaries into a new variable containing salaryrange categories. The following instructions show you to recode data for this purpose in spss. In spss i have code as recode a 1,2 1 3,4 copy 8 thru hi 3 else 1 into b. Recode into the same variables, overwriting an existing variable recode into different variables, creating a new variable in addition to your existing variables. You type in new variable names on your new variables, i have typed in att1 and. What the values for categorical variables look like via the variable view tab 2. Recoding your data means changing the values of a variable so that they represent something else. Well dichotomize variables v4 to v6 by changing values 1, 2 and 3 into 0 and values 4 and 5 into 1 as implied by recode v4 to v6 1,2,3 04,5 1. Spss syntax if statement multiple recode commands stack. 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. In this case, we will recode mpg into mpg3a using three categories. Recoding variables in spss statistics single values laerd. What the values for categorical variables look like via the data.
In spss, how do i collapse and recode a continuous variable. 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. Recoding variables in spss menus and syntax the analysis. You can also recode variables in place into same variables instead of recoding them into new variables. After recoding we must respecify the value labels for all three variables. The recode into different variables window will appear. This module shows how to create and recode variables. We may want to use different cut off points for male and female respondents. The numeric variables between and including v1 and v3 are recoded. Change the coding of a variable using recode into same variable in spss duration. Suppose you have a variable score that you need to collapse into five distinct categories in a new variable grade. Defining the variables involves multiple processes and requires careful planning.
Say wed like to convert peoples monthly income into income classes. Note that this dialog window allows you to recode specific values, ranges of values, and missing values into new values. Move across to the central box the first variable that needs recoding. Recoding into same variables replaces the values in the existing variable. Select the items you want to reverse and move them to the input variable output variable box. The variables esteem1 to esteem5 are coded from 1 strongly disagree through 4 strongly agree. Spssx discussion recode multiple variables into one. This section only 200mb capacity, the installation does not need to enter key. 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. Make sure you have entered all your data first, as the recode function does not automatically update when you enter new data. However, if you wish to recode these variables into new variables, for each variable a separate recode command line is necessary. How to combine two or more categorical variables into one in spss. The standard approach here is to add up all variables and multiply the last variable by 1, the second last variable by 10, the third last variable by 100 and so on. You can use the into option with the recode command to create the new variable into which you will recode the old variable.
The dataset has 435 observations in all, and spss reports that there are zero missing. Jan 09, 2015 tutorial spss bahasa indonesia, pengenalan spss, belajar spss, menghitung data statistik dengan spss, spss untuk pemula, spss untuk penelitian. Choose the source variable from the list on the left and click the arrow which then points left to insert the variable into the numeric variable output variable box. Items esteem1, esteem2, and esteem4 are worded positively with respect to higher selfesteem i am a person of worth, i have good qualities. Uncovering and explaining how our digital world is changing and changing us. This edition applies to ibm spss statistics 20 and to all subsequent releases and modifications until otherwise indicated in new. Give the first variable a new name in the output variable section usually start with r to indicate reversed. Click old and new values and specify how to recode values. The wrangling process includes recoding and recategorizing data to get it into the format thats going to be most useful for answering the questions that you have. Click on transform\ recode into different variables.
The crosstab above shows that 21% of the domestic cars fall into the high category, while 55% of the foreign cars fit into this category 3. This can help the coder from doing a lot of extra work if the ladder is the case. Sometimes it is necessary to recode sometimes referred to as transform variables in case data was put into spss wrong or if things on the survey were incorrect. How to recode categorical variables in spss youtube. Recoding a variable with spss1 the following uses a set of variables from the 1995 national survey of family growth to.
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. In order to do this recode needs all variables to be of the same type and width. You can also convert numeric variables to string variables, and vice versa. Recoding variables in spss statistics recoding data into. Spss statistics recode single values in spss statistics. Each of the seven variables indicates a racial group, with 1the student belongs to the racial group and 0the student does not belong to the racial group.
Recoding variables in spss statistics single values. Ibm spss statistics 22 command syntax reference university of. Als je daardoor het risico loopt gegevens kwijt te raken, moet. I did not find an answer online, but i did eventually figure out how. Jul 21, 2008 hi spss listers, i want to recode seven variables into one variable. Recoding into new variables is necessary if you want to recode. I am trying to recode multiple variables with one if statement. To open the automatic recode procedure, click transform automatic recode. Define variable weight in multiple correspondence analysis. Using this method, we do not need to make a copy of mpg or use the compute command. Creating a new variable from an existing one in spss tutorial duration.
I am an spss novice, and i found this group recently when i was trying to determine how to combine two categorical into one variable in spss. Recoding variables in spss menus and syntax the analysis factor. Sep 02, 20 logiciel spss 20 version francaise complete avec crack je telecharge crack. Recode changes to codes of one or more variables varlist1 according to a list of specifications enclosed in parentheses. As the name implies, recode means replace some or all codes of a variable by new, different codes. First, if you are creating cutpoints for a date variable, use the visual binner transformvisual binner.
I need to repeat this step with different subtests e. Recode multiple response variables into one in r stack. We recommend recoding into a different variable, allowing you to retain the original variable that your. The variables that i want to merge are not in order, theyre sread out throughout the dataset if that makes a difference, though i dont see why it should my problem now is that the new variable comes out completely. To demonstrate how this works in spss, ive got a tiny little toy data set here called recoding. Use python in spss to recode only certain variables using. The recode command only accepts the numeric value of date variables. As the recoded data will appear in a new column in the data view, we need to give it a name. The above examples illustrate how to recode variables into the same variables. 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. In this example, variable attend is selected for recoding.
I have an spss datafile which separated responses from two groups of participants on the same survey question into two variables in spss i. Ibm spss statistics 20 command syntax reference uottawa. How to recode data in spss york st john university. A step by step guide to recoding age variables into generational groups in. Recoding variables in spss statistics single values laerd statistics. This document contains proprietary information of spss inc, an ibm. Instructions to spss just a text file gui is creating and runing syntax. Optionally, you can define a subset of cases to recode.
To build an expression, either paste components into the expression field or type directly in the expression field. In spss, there are three basic options for recoding variables. The variables, in this case, need to have the same coding structure. Recode into same variables feature in spss youtube. We also tell spss that any data that were missing sysmis we want to be missing in our new recoded variable. On the menu transform recode into different variables. My question is how can i do this without any overriding in r. The data given below represents a satisfaction rating out of 10 for a new service offered by a company. If you select multiple variables, they must all be the same type. Recoding variables spss tutorials libguides at kent state. Click the arrow in the center to move the selected variable to the center text box, b. The output variable section on the far right becomes active.
The recode command is followed by the variable name bmi, then we put in brackets the value ranges for each category, and give them a label 1, 2, 3, and 4 for the four categories. These fields will activate after at least one variable has been added to the variable. If you select multiple variables, they must be the same type numeric or string. This is a tutorial on how to use the recode into same or different variables function in spss pasw. In the output variable box, type in a name for the new grouped variable. Spssx discussion recode multiple variables into one variable. 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. A conditional expression returns a value of true, false, or missing for each case. To recode into different variables, click transform recode into different variables. What automatic recode does is, its not recoding the cases,its. 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 old value one will disappear after the subsequent choice. Select the variable you wish to recode by clicking it. Hi spss listers, i want to recode seven variables into one variable. The left column lists all of the variables in your dataset. We recommend strongly that you recode your variables into new variables, just in case the recoding does not go as you planned. Easy to do the same thing with different variables easier to find errors better features not available on the menues ensures replicability. Creating and recoding variables spss learning modules. In almost every situation, you want to use into different variables. There are two widely used transformation procedures in ibm spss statistics called compute and recode. The other way to obtain zscores is to make them manually, and the code necessary.
Creating a new spss statistics data file consists of two stages. Recode into different variables ibm knowledge center. 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. Old values must be the same data type numeric or string. The original variable s being transformed, and the name of the new variable s that the results will be saved as. If you create a frequency table of this variable analyze descriptive statistics frequencies, you will notice something strange. Logiciel spss 20 version francaise complete avec crack. In spss syntax you can use the same recoding pattern for a bunch of variables at a time without looping at all, for example. By the sounds of you might want to do this outside of a recode command.
Now, you cant recode multiple variables into one with recode. Recoding variables in spss statistics recoding a given. Click the transform menu at the top of the spss data sheet, then select recode into different variable, because you will transform the. You will now see the recode into different variables window. In spss, values determine both how means are computed and how percentages are computed on tables. Links download spss, amos free for studying spss expert. We need to transform data into different forms as per statisticalresearch needs. Spss has 2 functions that allow us to recode variables. Do not forget to remember the change button if not recode your command will fail. Mar 29, 2019 the instructions and examples will help guide you through establishing different types of variables for your particular research or analysis needs. The data given below represents runs scored by 5 batsmen in a nationallevel match. 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.
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. I have 20 string variables s1s20 where the drugs are listed, and 20 numeric variables n1n20 where the doses for the drugs are listed s1 gives drug, n1 gives dose for drug in s1. You can use recoding to produce different values or codes for a variable. It shows you the distribution and allows you to enter cutpoints in the date format of the variable in question. In this case, we can first use a recode command only for cases whose gender is female. A code book is about how you code your variables including. This video demonstrates using the recode into different variables feature in spss. You cannot recode numeric and string variables together.
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 the sample data file, the variable state is a string variable representing whether the student is an instate student or an outofstate student. Recoding a variable with spss1 the following uses a set of variables from the 1995 national survey of family growth to demonstrate how to use some procedures available in spss pc version 10. So i want spss to change variable 1, 2 and three if var1x.
Recoding into new variables is necessary if you want to recode from strings to numbers. In spss you can create new variables with compute and you can modify the values of an. 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. In spss, you have two options for collapsing and recoding continuous variables. We have found that it may not work properly in spss version 20. There are options for recoding factors in base r, and there is also a package forcats that provides a number of convenient functions for manipulating factors. Spss do if change variables for a selection of cases. Next, well use a different recode command for males. It isnt unusual for this data to have been entered as string values alphanumeric characters. 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. If cases the if cases dialog box allows you to recode values for a selected subset of cases, using conditional expressions. Variables are typically quantitative, with nominal categorical data recoded to binary. There is an easier way to recode mpg to three categories using recode. In this example well merge categories 1 and 2 of a variable v1.
What automatic recode does is, its not recoding the cases,its not ranking. 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 data given below represents the scores of 10 students in a final examination. Now, automatic recode worksa little differently from some of these others. Spss however does not like me doing so i am probably missing something in the syntax, but i do not know what.