help with paste

Hello gurus,

I have some variables, and i am creating combinations for analysis in the
end i need these variables to be displayed like "LEPTIN+SAA+PTH". currently
i am using loop to perform this. I would appreciate any pointers to do it
without the loop.

mols=c("LEPTIN","SAA","PTH","sEGFR")
samples=mols[1:3]
samples

[1] "LEPTIN" "SAA"    "PTH"

names1=samples[1]
 for (j in 2:length(samples)){ names1 = paste (names1, samples[j],
sep="+")}
names1

[1] "LEPTIN+SAA+PTH"

thanks
sharad

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