Origin Version (Select Help-->About Origin): 7.5PRO Operating System: WinXP
I'm using compiled c functions for fitting using the pfm and fitting is extremely slow. I can fit my spectra in a second or two using the built in gauss function. When i implement the same gauss function in c and try to fit, it takes about 2 minutes per iteration. It can't possibly be taking 2 minutes for the calculations can it? Is there a chance that there is a problem with origin passing data slowly to the external function? Thanks! John
I have also found fitting OriginC functions in the PFM to be quite slow. As far as I'm aware, the only solution is to code the function(s) in an external DLL.
I'm attempting to implement my functions in a DLL. I don't have any experience with DLL's unfortunately, so I'm attempting to use the example that comes with the PFM. It includes the DLL_Func.c source and DLL_Func.dll files. In theory I should be able to just compile the DLL_Func.c to get DLL_Func.dll but unfortunately I can't get Origin to compile it. The compiler can't find the windows.h header file, which I would imagine is a standard header that should be included. I tried compiling using the windows.h header from the Dev-C++ (Free C/C++) compiler, but the compiler just gives me a bunch of errors, so i'm guessing that header won't work. Any ideas where the correct windows.h might be? I believe I can modify the code in the example DLL for my function, but it's no good if it can't compile. Thanks! John
Slow PFM fitting using c functions
Posted - 01/11/2005 : 1:11:48 PM
