📄 gslib help scatsmth.htm
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<H2>GSLIB Help Page: SCATSMTH</H2></CENTER>
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<DT><IMG height=14 alt=o src="GSLIB Help SCATSMTH.files/ball.red.gif"
width=14> <STRONG>Description:</STRONG>
<UL>
<LI>Creates a smooth bivariate distribution model constrained to marginal
distributions, correlation coefficient, bivariate quantiles, and smoothmess
</LI></UL>
<DT><IMG height=14 alt=o src="GSLIB Help SCATSMTH.files/ball.red.gif"
width=14> <STRONG>Parameters:</STRONG>
<UL>
<LI><B>datafl:</B> the data file with the raw (perhaps declustered) paired
observations.
<LI><B>icolx, icoly</B> and <B>icolwt:</B> the column location for the
<I>z_1</I> variable, the <I>z_2</I> variable and the declustering weight (0
if none available).
<LI><B>smoothx:</B> the data file with the smoothed <I>z_1</I> (X)
distribution.
<LI><B>icolvr</B> and <B>icolwt:</B> the column location for the variable
and the weight (probability).
<LI><B>smoothy:</B> the data file with the smoothed <I>z_2</I> (Y)
distribution.
<LI><B>icolvr</B> and <B>icolwt:</B> the column location for the variable
and the weight (probability).
<LI><B>dbgfl:</B> name for the output file for debugging information.
<LI><B>finalxfl:</B> name for the output file of the final <I>X</I>
distribution - to check reproduction of the marginal distribution
<LI><B>finalyfl:</B> name for the output file of the final <I>Y</I>
distribution - to check reproduction of the marginal distribution
<LI><B>outfl:</B> the output file. This file will contain the <I>N_1</I>
(nx) by <I>N_2</I> (ny) <I>X</I> <I>Y</I> and probability values.
<LI><B>maxpert, report, omin</B> and <B>seed:</B> after <B>maxpert</B> x
<B>nz</B> perturbations the program is stopped. After <B>report</B> x
<B>nz</B> perturbations the program reports on the current objective
function(s). When the normalized objective function reaches <B>omin</B> the
program is stopped. The random number seed <B>seed</B> should be a large odd
integer.
<LI><B>imarg, icorr, ismth</B> and <B>iquan:</B> flags for whether closeness
to the marginal histograms, closeness to a target correlation coefficient,
smoothness, and closeness to specified quantiles are considered (1 = yes, 0
= no).
<LI><B>sclmarg, sclcorr, sclsmth</B> and <B>sclquan:</B> user imposed
weights which scale the weights that the program automatically calculates
(default is 1.0 for all weights).
<LI><B>nsmooth:</B> size of the smoothing window.
<LI><B>correlation:</B> target correlation coefficient.
<LI><B>ndqx</B> and <B>ndqy:</B> number of quantiles defined from the data
(evenly spaced cumulative probability values in x and y).
<LI><B>nenvelope:</B> number of points defining the envelope containing the
bivariate distribution (may be set to zero so that all points in the
bivariate distribution are allowable)
<LI><B>x(),y():</B> points defining the allowable bivariate envelope. This
``envelope'' is a practical feature that restricts the non-zero bivariate
probability values to fall within some user-specified region.
</LI></UL></DT></DL><IMG height=8 alt=---
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