It looks like you are test against TAZDetermine before it is defined. Try something like this:
while(TRUE){ ...generate random number if (value > Dev_size) break } On Tue, Sep 30, 2008 at 6:56 PM, PDXRugger <[EMAIL PROTECTED]> wrote: > > I am looking up a number based upon a randomly selected number and then > proceed to the rest of my code if the corresponding value is greater than or > equal to yet another value. > > so if > > Dev_Size = 14 > > and my randomly selected number is 102 > > and i am looking up 102 in the following table > > 100 21 > 101 4 > 102 9 > 103 52 > 104 29 > > So i select the the corresponding value of 102, which is 9 and determine if > it is greater than or equal to Dev_Size and if it is i would proceed, if not > i would like my random number generator to select another number until > complies with the requirement. I have tried below but my while loop doesnt > do what i would like. I cant seem to find a good resource for my problem, > any help would be much appreciated. > > Cheers, > JR > > > > > #Loads TAZ and corresponding vacant acres data > TAZ_VAC_ACRES= > read.csv(file="C:/LUSDR/Workspace/BizLandPrice/data/TAZ_VAC_ACRES.csv",header=TRUE); > > > #Test Location Choice Model selected TAZ > > while(TAZDetermine <= Dev_Size){ > > #Randomly generates test TAZ from 100 to 844 > RndTAZ=sample(100:844,1,replace=T) > > #Renames randomly generated TAZ's object > Loc_Mod_TAZ = RndTAZ > > #Create test Development > Dev_Size=50 > > #Determines vacant acres by TAZ > TAZDetermine=TAZ_VAC_ACRES[TAZ_VAC_ACRES$TAZ==Loc_Mod_TAZ,2] > > #Displays number of vacant acres in Location Choice Model selected TAZ > TAZDetermine > > } > > -- > View this message in context: > http://www.nabble.com/conditional--loop-tp19751172p19751172.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.