Prevent variable name getting mangled by read.csv/read.table?

Question

My data set testdata has 2 variables named PWGTP and AGEP

The data are in a .csv file.

When I do:

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Answer 1

This is a BOM (Byte Order Mark) UTF-8 issue.

To prevent this from happening, 2 options:

1. Save your file as UTF-8 without BOM / signature -- or --
2. Use fileEncoding = "UTF-8-BOM" when using read.table or read.csv

Example:

mydata <- read.table(file = "myfile.txt", fileEncoding = "UTF-8-BOM")