[R] how to realize integration in C?

[Lynette Sun]

Hi,

Thank you for your suggestions. But I also realized I didn't make myself 
clear. I actually don't just need the integration results in R. The 
integration in C is part of my C codes. I need the integration results in C. 
How to realize that? Any suggestions? Thanks a lot!

Best,
Lynette

----- Original Message ----- 
From: "Lynette Sun" <fuyaonv at hotmail.com>
To: "r-help" <r-help at stat.math.ethz.ch>
Sent: Thursday, November 16, 2006 2:41 PM
Subject: [R] how to realize integration in C?


> Hi, all,
>
> In order to save simulation time, I need to call C in R. For the C codes, 
> I
> need integrate certain functions ( both continous and discrete ), I wonder
> how to realize the integration in C?
>
> I try to use qsimp and trapzd subroutines from Numerical Recipes. But the
> error continues to appear:" Too many steps in routine qsimp ". Anyone has
> any idea why this happens and are there better solutions for the 
> integration
> realization? Thanks a lot!
>
> Best,
> Lynette Sun
>
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