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flip a column

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T O P I C R E V I E W
G.Bartsch	Posted - 11/17/2006 : 07:31:48 AM what is the best way to flip a column? i mean making the former first value the last, the second the one before the last and so on... thanks
4 L A T E S T R E P L I E S (Newest First)
easwar	Posted - 12/09/2011 : 10:05:28 AM Hi, In 8.51 or later, there is a colreverse function. In GUI, select a col (or a range or rows), then right click and select "Reverse Order" from the context menu. From LabTalk script, you can run the XF associated with this menu, such as: range r=1[5:10]; // col 1, rows 5 thru 10 colreverse r; Easwar OriginLab
stuzer	Posted - 12/05/2011 : 11:31:48 PM OK, another way: You want to flip column A. Mark an empty column -> right click -> set column values -> write this: Col(A)[N+1-i] N is a number of rows in column you want to flip.
G.Bartsch	Posted - 11/17/2006 : 10:54:36 AM thank you very much! works fine. nevertheless i assumed there was a more direct way, maybe one should implement something like that in later origin versions.
Mike Buess	Posted - 11/17/2006 : 08:38:32 AM This LabTalk script flips the first selected column... if( !selC1 ) return; get %(%H,selC1) -e npt; if( !npt ) return; wks.AddCol(); %(%H,wks.ncols) = data(1,npt); sort -cd selC1 selC1 %(%H,wks.ncols); del %(%H,wks.ncols); This Origin C function flips all selected columns... void flip_selected_columns() { Worksheet wks = Project.ActiveLayer(); vector<int> vv; wks.GetSelectedColumns(vv); int nSels = vv.GetSize(); if( !nSels ) return; for(int ii; ii<nSels; ii++) { Dataset dd(wks,vv[ii]); matrix mm(dd.GetSize(),1); mm.SetByVector(dd); mm.FlipVertical(); mm.GetAsVector(dd); } } Mike Buess Origin WebRing Member Edited by - Mike Buess on 11/17/2006 08:52:38 AM

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