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Nilsdalby
Denmark
23 Posts |
 Posted - 03/16/2010 : 3:11:59 PM
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Hi
Im using originpro 8.0 SR6 on a windows xp platform.
A seemingly minor problem: How can i loop over all columns in a sheet and perform a fft on each column, using the x-function fft1 ? Note, the X-function fftonmultiplecolumns is named in the help but not yet defined.
Ive tried variations over A-C:
A) loop(j,2,ncols){fft1 ix=(j);};
B) for(ii=2;ii<ncols; ii++){fft1 ix=col(ii);};
C) for(ii=2;ii<4;ii++){fft1 ix=($(ii));};
I further want the result (power) to go to one sheet and to write specifications as to how the fft is performed (graphs, phase, unwrap etc.) which should count for all columns.
Suggestions are welcome, thanks
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greg
USA
1378 Posts |
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schneide
Germany
45 Posts |
Posted - 12/11/2014 : 04:32:12 AM
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Hi,
I have a very similar problem, however with an x-function requiring 2 input arguments. What's the right syntax here:
loop(ii,2,15){
differentiate iy:=(1,ii) oy:=(17,ii+16);
}
is obviously wrong, but how to do it right?
Giselher
Giselher |
Edited by - schneide on 12/11/2014 04:35:46 AM |
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schneide
Germany
45 Posts |
Posted - 12/11/2014 : 04:45:09 AM
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Seems like I found out myself, thanks to the solution to above posting
Here it is:
loop(ii,2,15){
differentiate iy:=(1,$(ii)) oy:=(17,$(ii+16)) ;
}
I thought I had tried this before and it didn't work. Obviously I had made a different error at the time
Giselher |
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nguyenphucuong280193
Vietnam
1 Posts |
Posted - 12/26/2014 : 10:07:26 PM
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Hi Nilsdalby,
I have a very similar problem, however with an x-function requiring 2 input arguments. What's the right syntax here:
loop(ii,2,15){
differentiate iy:=(1,ii) oy:=(17,ii+16);
}
is obviously wrong, but how to do it right?
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Topic |
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Looping over columns using X-function fft1