http://libisis.org/index.php?action=history&feed=atom&title=IXFregroup_dataset_1dIXFregroup dataset 1d - Revision history2026-04-30T21:02:41ZRevision history for this page on the wikiMediaWiki 1.35.13http://libisis.org/index.php?title=IXFregroup_dataset_1d&diff=2348&oldid=prevDean Whittaker at 09:35, 4 April 20082008-04-04T09:35:29Z<p></p>
<p><b>New page</b></p><div>This function will regroup an [[IXTdataset_1d]] object according to the supplied params(xlo,dx,xhi) argument to give an [[IXTdataset_1d]] 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_dataset_1d]] and [[IXFregroup_dataset_1d]] 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_1d<br />
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type(IXTdataset_1d):: dataset_1d,result_d1d<br />
type(IXTstatus)::status<br />
real(dp)::params(3)<br />
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call IXFregroup_dataset_1d(result_d1d,dataset_1d,params,status)</pre></div>Dean Whittaker