Clears a column (or columns) in a 1- or 2-dimensional dataset.
USAGE:
clear.col(target, target.column, count)
REQUIRED ARGUMENTS:
target
1- or 2-dimensional dataset for which the column(s) will be cleared. A
1-dimensional dataset is considered to be a single, unnamed column.
target.column
integer or character (name-matching) value specifying the column of
target at
which the clearing is to be done. To specify the last column of
target, use
"@END" or
"".
count
integer value specifying the number of columns to be cleared.
VALUE:
The target dataset with the column(s) cleared; for each cleared column, the new
value(s) will be a vector of
"" if its data type is
"character", a vector of
NA
otherwise.
SEE ALSO:
,
,
,
,
,
.
EXAMPLES:
# clears all columns of swiss.x
swiss.0 <- clear.col(swiss.x, 1, count.cols(swiss.x))