Nothing
wdConvert<-function(input,from="in",to="pt"){
convert<-paste(from,to,sep="2")
if (from==to) out<-input else {
out<-switch(convert,
in2pt=input*72,
pt2in=input/72,
in2cm=input*2.54,
cm2in=input/2.54,
cm2pt=input*28.34646,
pt2cm=input/28.34646,
stop("from or to dimension not recognized")
)}
return(out)
}
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