9 May 2025 9:16:32.734 PM HISTOGRAM_DATA_2D_SAMPLE: 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". HISTOGRAM_DATA_2D_SAMPLE: Normal end of execution. 9 May 2025 9:16:32.738 PM