[R] Calling object outside function

jim holtman jholtman at gmail.com
Wed Sep 24 21:05:43 CEST 2008

You have to assign the value of the function to an object.  You probably want:

TAZDetermine <- Testdata(....)  # I am not sure what your arguments to

On Wed, Sep 24, 2008 at 1:16 PM, PDXRugger <J_R_36 at hotmail.com> wrote:
> What i thought was a simple process isnt working for me.  After i create an
> multiple objects in a function (see below), how to i use those objects later
> in the program.  I tried calling the function again and then the object i
> wanted and it worked the first time but now it doesnt( i think i defined the
> object outside the function accidently so then it worked but when run
> properly it doesnt).  I did this using
> Testdata(TAZDetermine) to first recall the function then the object i wanted
> to use.  This deosnt work and it errors that the object cannot be found.  Do
> i use attach?  this didnt seem to work either.  I just want to call an
> object defined in a function outside of the function.  Hope you can help
> Cheers,
> JR
> #Function to create hypothetical numbers for process testing
> Testdata=function(TAZ_VAC_ACRES,Loc_Mod_TAZ,Dev_Size,TAZDetermine,Dev_Size){
> #Loads TAZ and corresponding vacant acres data
> read.csv(file="I:/Research/Samba/urb_transport_modeling/LUSDR/Workspace/BizLandPrice/data/TAZ_VAC_ACRES.csv",header=TRUE);
> #Test Location Choice Model selected TAZ
> Loc_Mod_TAZ = 120
> #Create test Development
> Dev_Size=58
> #Determines vacant acres by TAZ
> #Displays number of vacant acres in Location Choice Model selected TAZ
> TAZDetermine
> }
> Testdata(TAZDetermine)
> error indicating the that function cannot be found even thoug its part of
> the argument list in the main function.
> --
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Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?

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