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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 tbarrou[/i] [br]Origin Ver. and Service Release (Select Help-->About Origin): 2015 SR1 Operating System: win7 Hello, I m fighting (again) with ranges and syntax which remains unclear each time I retry using it... I have 250 time domain acquisitions in a worksheet, one acquisition per column with a sampling interval instead of a X column (same for all). I would like to get, in an other worksheet of 251 columns, 250 Fourier Transforms (fft1) of a part of the acquisitions (same begin and end indexes for all). I also target to get only one frequency scale (first column). In the before formula section of a "set column value", I tried using range defining the worksheet (r1=[wksname]meas!, trying then to extract from it a range for each column (r2 = r1.col(1) or r1.col1 or hundreds syntax I tried) in a loop, then restrict it with index limits to pass it as argument for fft1 function. I miserably failed ! :-) Help did not... helped me, I haven't found a method for extracting a column range from a worksheet range. Is there a smart way for doing these multiple FFT with same frequency scale (and same parameters) ? thanks a lot for your help. Best Regards, Thomas [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.