On 19/12/2010 7:21 PM, Paolo Rossi wrote:
I would like to know how to turn a variable into a string. I have tried
as.symbol and as.name but it doesnt work for what I'd like to do
Essentially, I'd like to feed the function below with two variables. This
works fine in the bit working out number of elements in each variable.
In the print(sprintf("OK with %s and %s\n", var1, var2)) line I would like
var1 and var2 to be magically substituted with a string containing the name
of var1 and name of var2.
The name of var1 is var1, so I assume you mean the expression passed to
your function and bound to var1. In that case, what you want is
deparse(substitute(var1))
Watch out: if the expression is really long, that can be a vector with
more than one element. See ?deparse for ways to deal with that.
Duncan Murdoch
Thanks in advance
Paolo
haveSameLength<- function(var1, var2) {
if (length(var1)==length(var2))
{
print(sprintf("OK with %s and %s\n", var1, var2))
} else {
print("Problems!!")
}
}
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