Hi,
I'm getting this error for a simple code
"Error in x[floor(d)] + x[ceiling(d)] :
non-numeric argument to binary operator"
the code:
tww_xls <- read_xls("TWW_R.xls")
boxplot(tww_xls$pc, tww_xls$conc)
tww_xls$pc is a compound name (character)
and tww_xls$conc is a concentration (numeric)
Thanks