[R] non-numeric argument to binary operator

[Duncan Murdoch]

On 12-12-16 6:56 PM, Shrupa Sumaria wrote:
> Hello,
>
>
> I wish to carry out the following:
>
>
> factor_classes <- as.factor(sample(c("BM", "SM", "F"), 10, replace = TRUE))
>
>
> C <- 5
>
>
> k <- matrix(0, length(factor_classes), 1)
>
>
> for (i in length(factor_classes)) {
>
>
> k[i] <- C*factor_classes[i]
>
>
> }
>
>
> I get the following error message:
>
> non-numeric argument to binary operator
>
>
> I wish to store the results of C*factor_classes[i] in matrix k.
> Is there any way I can multiply the factor with the numeric variable?

What do you expect to get from 5*"BM"?

Duncan Murdoch

>
>
> Thanks for your help in advance.
>
>
> Cheers,
>
> sumaria
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>
>
>
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