Description of the program: makenoise

Depending on whether the -0 flag is set it either takes (possibly multivariate) data and adds a desired amount of noise to it or it just creates a series of random numbers with zero mean.


makenoise [Options]

Everything not being a valid option will be interpreted as a potential datafile name. Given no datafile at all, means read stdin. Also - means stdin

Possible options are:

Option Description Default
-l# number of points to use whole file
-x# number of lines to be ignored 0
-m# number of columns to be used 1
-c# column(s) to be read 1
-%# noiselevel in percent 5
-r# absolute noiselevel (or absolute variance if -g is set) not set
-g add gaussian noise instead of uniform uniform
-I# change the seed of the random number generator
If # = 0, the seed is taken from the time command, which means
the seed is set to the number of seconds since Jan 1st, 1970
some fixed value
-0 Don't read any data file, just generate random numbers with zero mean. (Requires -r and -l) not set
-o# output file name -o without a name given: 'datafile'.noi
(or stdin.noi if data were read from stdin)
If no -o is given data are written to stdout
-V# verbosity level
  0: only panic messages
  1: add input/output messages
-h show these options none

Description of the Output:

The output consists of the noisy time series.
View the C-sources. View rand.c.
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