GSLIB Help Page: SCATSMTH
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Description:
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Creates a smooth bivariate distribution model constrained to marginal
distributions, correlation coefficient, bivariate quantiles, and
smoothmess
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Parameters:
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datafl: the data file with the raw (perhaps declustered)
paired observations.
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icolx, icoly and icolwt: the column location for the
z_1 variable, the z_2 variable and the declustering weight
(0 if none available).
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smoothx: the data file with the smoothed z_1 (X)
distribution.
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icolvr and icolwt: the column location for the variable
and the weight (probability).
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smoothy: the data file with the smoothed z_2 (Y)
distribution.
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icolvr and icolwt: the column location for the variable
and the weight (probability).
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dbgfl: name for the output file for debugging information.
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finalxfl: name for the output file of the final X
distribution - to check reproduction of the marginal distribution
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finalyfl: name for the output file of the final Y
distribution - to check reproduction of the marginal distribution
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outfl: the output file. This file will contain the N_1
(nx) by N_2 (ny) X Y and probability values.
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maxpert, report, omin and seed: after
maxpert x nz perturbations the program is stopped.
After report x nz perturbations the program reports on
the current objective function(s). When the normalized objective
function reaches omin the program is stopped.
The random number seed seed should be a large odd integer.
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imarg, icorr, ismth and iquan: 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).
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sclmarg, sclcorr, sclsmth and sclquan: user imposed
weights which scale the weights that the program automatically
calculates (default is 1.0 for all weights).
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nsmooth: size of the smoothing window.
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correlation: target correlation coefficient.
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ndqx and ndqy: number of quantiles defined from the data
(evenly spaced cumulative probability values in x and y).
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nenvelope: 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)
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x(),y(): 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.