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I use SPSS to analyse the results of surveys. Since I have different scales and types of variables, I need to define my missing values. I can set all missing values in Ecxel to a certain value (e.g. -99) but after importing the dataset in SPSS i need to manually define the missing value for all (in this case 258) variables (since I don't have just numeric variables, SPSS cannot define these automatically).
I need an option to set missing values for all variables (or at least multiple variables) at the same time, since it takes up a lot of time to manually define the missing values for this many variables.
I have had this issue multiple times in the past with different surveys and test setups. I hope you can find a solution for this.
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