Dear list,
I have a data frame where one of the columns are p values with scientific
notation mixed with regular numbers with decimals.
>a=data frame
>a
      P     OR   N
0.50 0.7500 237
0.047 1.1030 237
0.124 0.7742 237
0.124 0.7742 237
0.0080 1.1590 237
0.50 0.7500 237
4.5e-07 1.2 237
5.6e-04 0.9 237

when I try to do
>pval=a$P/2

R gives me an error saying "In Ops.factor(pval, 2) : / not meaningful for
factors"

any help on this?

Thank you!

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