https://wiki.ice-online.com/index.php?action=history&feed=atom&title=POLYFITPOLYFIT - Revision history2026-09-25T19:25:15ZRevision history for this page on the wikiMediaWiki 1.34.1https://wiki.ice-online.com/index.php?title=POLYFIT&diff=861&oldid=prevConvertBot: evaluates polynomial fit on data in a piecewise manner2020-04-27T22:05:20Z<p>evaluates polynomial fit on data in a piecewise manner</p>
<p><b>New page</b></p><div>evaluates polynomial fit on data in a piecewise manner<br />
<pre><br />
<IN> - Type 1000/2000 format S# input file name. <br />
<ORDER> - Order of polynomial [DEF=1]<br />
<COEF> - Results label to receive coefficients<br />
<OUT> - Output file name to receive fit coefficients.Type 2000 format SD.<br />
<FIT> - Output file name to receive fit output. Type/Format of <IN>.<br />
<ERR> - Output file name to receive error output. Type/Format of <IN>.<br />
<br />
The <IN> file can be a type 1000 or 2000 file. If 1-D file, POLYFIT will fit<br />
one curve to the entire file. If 2-D, POLYFIT will fit one curve to each frame<br />
of the input file. The output files follow the input file type.<br />
<br />
The internal algorithm normalizes the abscissa to be from 0 to 1 to prevent<br />
floating point overflow errors when XSTART or XDELTA are large numbers. The<br />
coefficients are transformed to the file's abscissa reference frame before<br />
output.<br />
<br />
All internal statistics and matrix transformations are computed in double <br />
precision regardless of input data type.<br />
<br />
Examples:<br />
<br />
Switches: NONE<br />
<br />
</pre><br />
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[[Category:NXM_Explain]]</div>ConvertBot