Dear Maling list,
I have a data.frame with three columns. I want to produce a fourth
column which is result of "eliminating" the characters present in the
second and third colum from the first.
Example:
a b c
1 f f
2 j h
3
Hello,
I am a biologist and I am dealing with files composed of columns with T or A
or C or G (example below)
Sometimes a column is composed of only "T"
and in that case, the columns becomes a logical column TRUE (example below)
I know that the argument "as.is" controls the turns off turning a
2 matches
Mail list logo
