http://libisis.org/index.php?action=history&feed=atom&title=IXFregroup_x_dataset_2dIXFregroup x dataset 2d - Revision history2026-04-30T22:10:49ZRevision history for this page on the wikiMediaWiki 1.35.13http://libisis.org/index.php?title=IXFregroup_x_dataset_2d&diff=2329&oldid=prevDean Whittaker at 09:11, 4 April 20082008-04-04T09:11:20Z<p></p>
<p><b>New page</b></p><div><br />
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This function will regroup an [[IXTdataset_2d]] object along the x dimension according to the supplied params(xlo,dx,xhi) argument to give an [[IXTdataset_2d]] object result. It regroups data with new bin boundaries to ensure that bins have minimum width determined by the parameter ''dx'' with limits ''xlo'',''xhi'', but ensuring the bin boundaries are coincident with original bin boundaries.<br />
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*dx > 0 constant bin width = dx<br />
*dx < 0 logarithmic binning x(m+1) = x(m) *(1+|dx|)<br />
*dx = 0 retain original bin boundaries<br />
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The difference between [[IXFrebin_x_dataset_2d]] and [[IXFregroup_x_dataset_2d]] is that in the former the data in the original bins may be divided by the new bin boundaries. In the latter case, new bins are created only by combining whole bins.<br />
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Regrouping is ONLY permitted on histogram data.<br />
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===F90 syntax===<br />
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<pre>use IXMdataset_2d<br />
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type(IXTdataset_2d):: dataset_2d,result_d2d<br />
type(IXTstatus)::status<br />
real(dp)::params(3)<br />
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call IXFregroup_x_dataset_2d(result_d2d,dataset_2d,params,status)</pre></div>Dean Whittaker