16 June 2020 11:12:19.621 AM DISCRETE_PDF_SAMPLE_2D: FORTRAN90 version Generate sample data using a discrete PDF. TEST01 Consider data skewed toward the upper left corner of the unit square. Generate 1000 samples PDF data is on a 20 by 20 grid. PDF data sums to 2.88230 Wrote sample data to file "test01.txt". TEST02 Consider data suggested by the shape and density of Iowa. Generate 1000 samples PDF data is on a 12 by 8 grid. PDF data sums to 3200.00 Wrote sample data to file "test02.txt". DISCRETE_PDF_SAMPLE_2D: Normal end of execution. 16 June 2020 11:12:19.637 AM