How to Rename Columns in R
This page will show you how to rename columns in R with examples using either the existing column name or the column number to specify which column name to change.
Warning: R will allow a field to be named with a space but you won’t be able to easily refer to that column after the name change. If you need to make column names more readable for presentation do this as a final step just before exporting the data from R.
The first example shows how to change the name of a column using the name to identify which column apply the name to. The following code will rename the field SCHOOL_YEAR to School Year in the data frame called SCHOOL_DATA.
# Rename a column in R colnames(SCHOOL_DATA)[colnames(SCHOOL_DATA)=="SCHOOL_YEAR"] <- "School Year"
The second example shows how to change the name of a column using the column number to identify which column apply the name to. The following code will rename third column in the data frame SCHOOL_DATA to the name WSAS_Reading.
# Rename a column in R names(SCHOOL_DATA)<-"WSAS Reading"
See official R-manual page on colnames to learn more: http://stat.ethz.ch/R-manual/R-patched/library/base/html/colnames.html.
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