Description Usage Arguments Value Author(s) See Also Examples
Extract subset of columns from a data frame or a list of data frames. This function outputs a data frame which set of columns is a product of merging according to mergeOp of the imput data frame column set with a given set of names (subset) ordred either by the original column set or by a a subset parameter according to orderBySubset flag. In case the merging operation produces the columns which are not in an original data frame, the new columns are filled with value from na.value parameter.
1 2 3 4 5 6 | ## Static method (use this):
## Subset$byColNames(frameData, subset, orderBySubset=TRUE, mergeOp=intersect, na.value="", verbose=FALSE, ...)
## Don't use the below:
## S3 method for class 'Subset'
byColNames(static, frameData, subset, orderBySubset=TRUE, mergeOp=intersect, na.value="", verbose=FALSE, ...)
|
frameData |
Input |
subset |
|
orderBySubset |
Determines if the resulting data frame(s) columns will be ordered by subset ( |
mergeOp |
The merging operation to be performed on column names. Default in 'intersect'. |
na.value |
The value which should be used to field the empty columns
in the output |
verbose |
If |
... |
Not used |
A data.frame
or list of data frames which column set is a product of
column merging on a subset according to the mergeOp.
Alex Lisovich, Roger Day
For more information see Subset
.
1 2 3 4 5 6 |
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