**process post_statistics

Description

This post-processing computes and outputs statistical information about a specified variable in the form of a histogram. It divides the variable’s range into discrete bins and counts the number of values falling into each bin.

Syntax

**process post_statistics \(~\,\) *var variable \(~\,\) *nb_intervals nb_intervals [ *min_bound min_bound ] [ *max_bound max_bound ] [ *average_by_element \(~\,\) *volume_correction ] [ *write_gnuplot ] [ *write_simopt ] [ *output_file_ident infix ]

*var variable

the variable name.

*nb_intervals nb_intervals

number of bins/intervals

*min_bound min_bound

minimum bound (by default 0.)

*max_bound max_bound

maximum bound (by default 0.). Note that if both min_bound = max_bound = 0, the bounds are computed automatically.

*average_by_element

a flag indicating whether to use element-averaged values instead of Gauss point values when generating the histogram.

*volume_correction

a flag that, when enabled, weights each element’s contribution to the histogram by its volume, giving more influence to larger elements. This option should be used with *average_by_element option.

*write_gnuplot

a flag to write a gnuplot executable to plot the histogram

*write_simopt

a flag to write a simopt project to plot the histogram

*output_file_ident infix

inserts an infix into the output .txt file name to help distinguish it from others.

Example

****post_processing
 ***global_post_processing
  **file integ
  **elset ALL_ELEMENT
  **process post_statistics
   *var sig11
   *nb_intervals 8
   *average_by_element
   *volume_correction
****return

The output is given in sig11_hist__card_* .txt

# x_min_bound           -1.064021e+02    x_max_bound            1.853522e+01
# nb_points      900
# average        3.980707e-02
# D abs          1.306285e+01
# D rel          3.281541e+02
# x      frequency sig11
-9.859350e+01   5.813875e-05
-8.297634e+01   0.000000e+00
-6.735918e+01   1.327689e-04
-5.174201e+01   7.117676e-04
-3.612485e+01   1.155753e-02
-2.050769e+01   1.604365e-01
-4.890523e+00   3.652728e-01
1.072664e+01    4.618305e-01

D abs, and D rel are the absolute and the relative variance (normalized by the average value), respectively.