add_col_if_missing: Add default-value columns to a dataframe
In HomeBankCode/DarcleITS: Make Working with 'LENA' '.its' Files Easy
Description
Usage
Arguments
Value
Examples
View source: R/extract-helpers.R
Description
Add default-value columns to a dataframe
Usage
1
Arguments
df
a dataframe
...
key-value pairs. The lefthand side should be the name of the
desired column and the righthand should be the value to use as a default.
Value
the dataframe is returned. If any of columns named in ... are
missing, they are added to the dataframe.
Examples
1
2
3
4
5
6
7
## Not run:
add_col_if_missing(
iris,
Species = "col exists. this shouldn't do anything",
Species2 = "col doesn't exist. this should be added")
## End(Not run)
HomeBankCode/DarcleITS documentation built on April 14, 2020, 9:48 a.m.
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Description Usage Arguments Value Examples
View source: R/extract-helpers.R
Description
Add default-value columns to a dataframe
Usage
1 |
Arguments
df |
a dataframe |
... |
key-value pairs. The lefthand side should be the name of the desired column and the righthand should be the value to use as a default. |
Value
the dataframe is returned. If any of columns named in ... are
missing, they are added to the dataframe.
Examples
1 2 3 4 5 6 7 | ## Not run:
add_col_if_missing(
iris,
Species = "col exists. this shouldn't do anything",
Species2 = "col doesn't exist. this should be added")
## End(Not run)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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