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  3. Intermediate Importing Data in R

Exercise

Import SPSS data with foreign (2)

In the previous exercise, you used the to.data.frame argument inside read.spss(). There are many other ways in which to customize the way your SPSS data is imported.

In this exercise you will experiment with another argument, use.value.labels. It specifies whether variables with value labels should be converted into R factors with levels that are named accordingly. The argument is TRUE by default which means that so called labelled variables inside SPSS are converted to factors inside R.

You'll again be working with the international.sav data, which is available in your current working directory.

Instructions

100 XP
  • Import the data file "international.sav" as a data frame, demo_1.
  • Print the first few rows of demo_1 using the head() function.
  • Import the data file "international.sav" as a data frame, demo_2, but this time in a way such that variables with value labels are not converted to R factors.
  • Again, print the first few rows of demo_2. Can you tell the difference between the two data frames?