## GSLIB Help Page: POSTSIM

Description:

- `postsim` allows a number of summaries to be extracted from a set of simulated realizations:
  - the ``E-type'' estimates, i.e., the point-by-point average of the realizations.
  - Compute the variance of the conditional distribution.
  - the probability of exceeding a fixed threshold, the average value above that threshold, and the average value below that threshold.
  - the value where a fixed conditional cumulative distribution function (cdf) value p is reached, i.e., the conditional p-quantile value.

Parameters:

- simfl: the output simulation file that contains all of the realizations. This file should contain the simulated values, one value per line, cycling fastest on x then y then z and last per simulation.
- nsim specifies the number of realizations.
- tmin and tmax: all values strictly less than tmin and strictly greater than tmax are ignored.
- nx, ny, and nz specify the number of nodes in the x,y, and z direction.
- outfl: an output file that contains the E-type estimate, the fraction and mean above threshold, the fraction and mean below threshold, or the conditional p-quantile values.
- iout and outpar: iout=1 computes the E-type estimate, iout=2 computes the probability and mean above and below the value outpar, iout=3 computes the z-value (p-quantile) corresponding to the cdf value outpar=p, iout=4 computes the symmetric probability interval (total width = outpar), and iout=5 computes an estimate of the conditional variance A short description of the program