[R] folded normal distribution in R

[Andreas Wittmann]

Dear R useRs,

i wanted to ask if the folded normal destribution (Y = abs(X) with X 
normal distributed)
with density and random number generator is implemented in R or in any 
R-related package
so far? Maybe i can use the non-central chi-square distribution and 
rchisq(n, df=1, ncp>0) here?

Thanks and best regards

Andreas