CODEWITHSUNDEEP
rmapply
yasel
yasel

Reputation: 453

mapply runs into endless loop

I have a data.table like this:

testDT <- data.table(SFf = as.character(c("C1H1", "C3H4Cl")),
                     Mult = as.integer(c(3,5))
)

now I am trying to loop over the rows of this table and apply a function (multiform() from the package enviPat) to it like this:

mapply(multiform,testDT$SFf,testDT$Mult)

the output of it should be two strings, namely "C3H3" and "C15H20Cl5". However the function simply never stops calculating and seems to get caught up in an endless loop.

When I apply the function like 

multiform("C1H1",3)

it works and I get "C3H3" as output. What am I doing wrong?

Yasel

Upvotes: 0

Views: 94

Answers (1)

yasel
yasel

Reputation: 453

I got it. The problem was that the function multiform() does not allow elements without numbers behind them. So it wont take "C3H4Cl" but "C3H4Cl1".

I don't think that this is intended and will try to contact the authors of the package.

Upvotes: 2

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