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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by nevinlambert[/i] [br]Origin Version (Select Help-->About Origin): 7.5 Operating System: XP Hello: I want to perform 2d gaussian fitting using my own function on a series of datasets (up to 20) and have written (actually corrupted an example script) a test script to automate this tast, starting with only 2 datasets (data1 and data2). Everything seems to work OK except that the 2nd independent variable doesn't get specified- I was using nlsf.setIndep to do this, but it doesn't seem to work? Can this method be used to specify >1 independent variable in a dataset? I suspect I could speed up this task by writing code in Origin C, but my programming skill falls a little short of that at the moment.....thanks. The script I'm trying is: // Set up the fit // nlsf.func$ = gaussian2doffset; // select fitting function nlsf.numfitsets = 2; // indicate 2 datasets to be fitted nlsf.numDepend = 1; nlsf.numIndep = 2; nlsf.fitdata1$ = data1_c; // define 1st dataset to be fitted nlsf.setDepend(z(1),data1_c); nlsf.setIndep(x(1),data1_a); nlsf.setIndep(y(1),data1_b); nlsf.fitdata2$ = data2_c; // define 2nd dataset to be fitted nlsf.setDepend(z(2),data2_c); nlsf.setIndep(x(2),data2_a); nlsf.setIndep(y(2),data2_b); // Initialize parameter set for data1 // nlsf.p1 = 100; nlsf.p2 = 5; nlsf.p3 = 0.2; nlsf.p4 = 5; nlsf.p5 = 0.2; nlsf.p6 = 10; // Initialize parameter set for data2 // nlsf.p7 = 100; nlsf.p8 = 5; nlsf.p9 = 0.2; nlsf.p10 = 5; nlsf.p11 = 0.2; nlsf.p12 = 10; // Perform the fit // nlsf.fit(1); // iterate 1 time [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.