importing columns as factors
Caitlin Sadowski wrote:
I have a large csv table I am trying to read into R. I would like each column to be of type factor. However, most columns have only numeral entries (e.g. likert scales), so are automatically imported as type numeric. Is there a way to convert ALL columns to be of type factor, without having to convert each column manually?
It's in the help file for ?read.csv, the colClasses argument:
colClasses: character. A vector of classes to be assumed for the
columns. Recycled as necessary, or if the character vector
is named, unspecified values are taken to be ?NA?.