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## NAME

```       maphimbu -  1-d histogram builder for numerical and text data

```

## SYNOPSIS

```       maphimbu [OPTION]... [FILE]

```

## DESCRIPTION

```       This program produces 1-d histograms from numerical or text data input.
It can be also used to estimate the probability  distribution  function
of          a          numerical         variable         -         see
http://en.wikipedia.org/wiki/Probability_density_function.

```

## OPTIONS

```       -x <int>
x-data column (default is 1)

-X     treat hole line as one string (single data record)

-y <int>
y-data column  (default  is  2);  It  is  considered  only  when
combined with ’-m’ or ’-S’

-d <float|int>
delta  size  (dx-resolution)  in case of numerical data; Keep in
mind that 2 is not the same  as  2.0:  in  the  first  case  the
numbers are treated as integers, in the latter as floats.

-n     normalize   the   result   A)   non-numerical   data:   n(x)   =
counts(x)/sum_of_counts  B)  numerical  data:   the   normalized
probability density func.

is  P(-INF  <  x  <INF)  =  Int_[-INF:INF] P(x)*dx = 1 ; For the
numerical integration an open x-data interval is assumed.

-N     normalize data against the total sum of counts (same  as  option
’-n’ with case A forced)

-U     normalize  the  result with x-range mapped to unit; The x-values
are mapped to the interval [0:1], respectively Int_[0:1] P(x)*dx
= 1; This option is mutually exclusive with ’-n’.

-S     compute  sums  and normalized sums of y-values; The total sum of
all y-values is used for the normalization.

-m     compute the arithmetic mean of y-values in the respective x-bar

-C     center histogram bars (shifts x-axis by 0.5*dx)

-s <int>
sort output numerically using the specified column;  It  is  not

-r     do reverse sorting (in combination with ’-s’)

-H     print a data description header

-V     print program version and exit

--version

--help display help

-h     display short help (options summary)

Note:  this  program  is  not  intended for use in high order numerical
computations.

```

## REPORTINGBUGS

```       Report bugs to <gnu@mirendom.net>

```

```       Copyright © 2003-2007, 2009 Dimitar Ivanov