62 lines
2.0 KiB
Python
Executable File
62 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python3
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import os
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import sys
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from io import StringIO
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from optparse import OptionParser
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import numpy as np
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import damask
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scriptName = os.path.splitext(os.path.basename(__file__))[0]
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scriptID = ' '.join([scriptName,damask.version])
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# --------------------------------------------------------------------
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# MAIN
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# --------------------------------------------------------------------
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parser = OptionParser(option_class=damask.extendableOption, usage='%prog options [ASCIItable(s)]', description = """
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Permute all values in given column(s).
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""", version = scriptID)
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parser.add_option('-l','--label',
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dest = 'label',
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action = 'extend', metavar = '<string LIST>',
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help ='column(s) to permute')
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parser.add_option('-u', '--unique',
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dest = 'unique',
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action = 'store_true',
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help = 'shuffle unique values as group')
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parser.add_option('-r', '--rnd',
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dest = 'randomSeed',
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type = 'int', metavar = 'int',
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help = 'seed of random number generator [%default]')
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parser.set_defaults(label = [],
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unique = False,
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randomSeed = None,
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)
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(options,filenames) = parser.parse_args()
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if filenames == []: filenames = [None]
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for name in filenames:
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damask.util.report(scriptName,name)
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table = damask.Table.from_ASCII(StringIO(''.join(sys.stdin.read())) if name is None else name)
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randomSeed = int(os.urandom(4).hex(), 16) if options.randomSeed is None else options.randomSeed # random seed per file
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rng = np.random.default_rng(randomSeed)
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for label in options.label:
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data = table.get(label)
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uniques,inverse = np.unique(data,return_inverse=True,axis=0) if options.unique else (data,np.arange(len(data)))
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rng.shuffle(uniques)
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table.set(label,uniques[inverse], scriptID+' '+' '.join(sys.argv[1:]))
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table.to_ASCII(sys.stdout if name is None else name)
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