## GSLIB Help Page: BIVPLT

Description:

- The `histsmth` and `scatsmth` programs smooth univariate and bivariate distributions. The `bivplt` program documented here displays the results. The plot also shows the original data pairs and the original unsmoothed data histogram.

Parameters:

- datafl: The data file with the paired data in a simplified Geo-EAS format.
- icolx, icoly, and icolwt: The columns for the x variable (horizontal axis), y variable (vertical axis), and weight (if less than or equal to zero then equal weighting is used; otherwise, the weight is used to calculate the summary statistics).
- ilogx and ilogy: set to 1 if log scaling has been used for the x or y axis respectively.
- tmin and tmax: all values strictly less than tmin and strictly greater than tmax are ignored.
- smoothx: the data file with the smoothed x distribution.
- icolvr and icolwt: the column location for the variable and the weight (probability).
- smoothy: the data file with the smoothed y distribution.
- icolvr and icolwt: the column location for the variable and the weight (probability).
- smoothxy: the data file with the smoothed bivariate distribution.
- icolx, icoly and icolwt: the column locations for the x and y variables and the weight (probability).
- outfl: file for PostScript output.
- imap and icolor: specify whether a pixel map of the bivariate probabilities will be created (imap1 will create one) and whether it will be color (icolor1) or gray scale ( icolor=0).
- pmin, pmax and pinc: minimum and maximum plotting limits for the pixel map.
- title: a 40-character title for the top of the plot.