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importing columns as factors

2 messages · Caitlin Sadowski, Erik Iverson

#
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?

Cheers,

Caitlin
#
Caitlin Sadowski wrote:
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?.