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Wagemakers September 12, 2007 08:35

changing scheme variable with UDF?
Hi All,

Is it possible to change or set a scheme variable through an UDF? Currently, I use rpsetvar after I get the value from the UDF by printf. Is there a way to do this directly in the UDF?


Joe September 12, 2007 08:41

Re: changing scheme variable with UDF?
yes. section 3.6 in the udf manual.

Wagemakers September 13, 2007 05:10

Re: changing scheme variable with UDF?
Thanks joe for the rapid respons,

I can access a scheme variable by rpgetvar in an UDF, and I'd like to change that variable within this UDF, not trhough the text interface by using rpsetvar. Is there a command similar to rpsetvar that can be used in the UDF? I read the UDf manual 3.6, but I don't seem to find it. Am I overlooking something?

With regards, R. Wagemakers

Dr. Aliosha November 24, 2014 06:56

Hi Wagemakers,
I'm facing the same problem.
Did you find any answer or workaround?


Kokemoor November 24, 2014 11:25

UDF Manual, section 3.6.4, has what you're looking for.

Dr. Aliosha November 24, 2014 11:45

Hi Kokemoor,
Thanks for your reply.
Looking at the UDF Manual (section 3.6.4), however, it seems that it's possible to define a scheme variable or get and use its value within the UDF.
It is also possible to change the scheme-variable value, from the text interface.

What I am looking for is a way to change the scheme-variable value from the UDF (instead of the text interface).

Any suggestion?


Kokemoor November 24, 2014 11:56

Sure enough, I guess it doesn't show those. Can't imagine why not. I should've looked more closely at what I suggested myself :p

There are matching functions for all the RP_Get_* functions:

Dr. Aliosha November 25, 2014 10:15

Good call!

Thank you Kokemoor.

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