[Rd] Dangerous Bug with IF function of R

From: salmajj <salmajj_at_softhome.net>
Date: Mon, 18 Apr 2011 09:12:41 -0700 (PDT)


hi!
there is a bug with the IF operator that is really dangerous! please try the code below and if someone could explain to me why when (q is equal to 0.8, 0.9 or 1) R do not print it?

q=0
for (j in 1:11){

if ((q==1)){
print(q)

        }
q=q+0.1
}

so in this code q is incremented from 0 to 1.1. but R do not capture print the value 1, 0.8 and 0.9 !! try to change (q==0.4) it gonna print 0.4. but if you put q==0.8 or 0.9 or 1 it doesn't work!!! please try it it is amazing!!!

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