Data Science Desktop Survival Guide by Graham Williams
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Removing Ignored Variables

20180726 Once we have identified all of the variables to ignore we remove them from our list of variables to use.

# Check the number of variables currently.

length(vars)

## [1] 24

# Remove the variables to ignore.

vars <- setdiff(vars, ignore)

# Confirm they are now ignored.

length(vars)

## [1] 18