NAME
tabfunc - convert table to functions for rcalc, etc.
SYNOPSIS
tabfunc [ -i ] func1 [func2 ..]
DESCRIPTION
Tabfunc reads a table of numbers from the standard input and converts
it to an expression suitable for icalc(1), rcalc(1) and their cousins.
The input must consist of a M x N matrix of real numbers, with exactly
one row per line. The number of columns must always be the same in
each line, separated by whitespace and/or commas, with no missing
values. The first column is always the independent variable, whose
value indexes all of the other elements. This value does not need to
be evenly spaced, but it must be either monotonically increasing or
monotonically decreasing. (I.e. it cannot go up and then down, or down
and then up.) Maximum input line width is 4096 characters and the
maximum number of data rows is 1024. Input lines not beginning with a
numerical value will be silently ignored.
The command-line arguments given to tabfunc are the names to be
assigned to each column. Tabfunc then produces a single function for
each column given. If there are some columns which should be skipped,
the dummy name "0" may be given instead of a valid identifier. (It is
not necessary to specify a dummy name for extra columns at the end of
the matrix.)
The -i option causes tabfunc to produce a description that will
interpolate values in between those given for the independent variable
on the input.
EXAMPLE
To convert a small data table and feed it to rcalc for some
calculation:
rcalc -e ‘tabfunc f1 f2 < table.dat‘ -f com.cal
AUTHOR
Greg Ward
SEE ALSO
cnt(1), icalc(1), neaten(1), rcalc(1), rlam(1), total(1)