Non-numeric argument to binary operator

[Evyatar]

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

[andresrcs]

Hi!

To help us help you, could you please prepare a reproducible example (reprex) illustrating your issue? Please have a look at this guide, to see how to create one:

FAQ: How to do a minimal reproducible example ( reprex ) for beginners

A minimal reproducible example consists of the following items: A minimal dataset, necessary to reproduce the issue The minimal runnable code necessary to reproduce the issue, which can be run on the given dataset, and including the necessary information on the used packages. Let's quickly go over each one of these with examples: Minimal Dataset (Sample Data) You need to provide a data frame that is small enough to be (reasonably) pasted on a post, but big enough to reproduce your issue. Let's say, as an example, that you are working with the iris data frame head(iris) #> Sepal.Length Sepal.Width Petal.Length Petal.Width Species #> 1 5.1 3.5 1.4 0.…

[nirgrahamuk]

a boxplot is not going to know what to do with a character vector of names.

[Evyatar]

Yes,
It seems like I need to order my table as data frame

Thanks