extrema_scan - Find the min/max values in binary, floating point files |
extrema_scan [-vsfd] - | FILE ... |
extrema_scan is a hack which will scan files consisting of binary floating point data, and return the scalar minimum and maximum of that data. |
When invoked with a list of files, extrema_scan computes the min/max over all files listed on the command line. If '-' is passed on the command line, then the list of files is read from the standard input instead. |
-v |
Verbose. After each file is scanned, print out the name of the file and the current min/max pair. |
-s |
Swap byte order. Use this if the data was written in an opposite byte order than the machine running. extrema_scan. |
-f |
Read in the data as a sequence of 32-bit floats. |
-d |
Read in the data as a sequence of 64-bit floats. This is the default. |
extrema_scan only works on files that are made up only of 32 or 64 bit floats and nothing else, not even file headers. It is meant to read brick-of-float type files written out by Enzo, or the libc_amr library. |