#### NAME

gen1d - generate time series from a one-dimensional map

#### SYNOPSIS

**gen1d** **-help**
or
**gen1d** **[-points** *integer***]** **[-skip** *integer***]** **[-r** *double***]** **[-aux**
*double***]** **[-x0** *double***]** **[-func** *string***]**

#### DESCRIPTION

A time series data set is generated by a one-dimensional
map according to the specified options. See the MAPS sec-
tion of the manual page for details of what maps are sup-
ported. User defined maps can be added to the file
maps1d.c, but you must recompile the program.

#### OPTIONS

**-points** *integer*
Number of points to plot.
**-skip** *integer*
Number of initial points to skip.
**-r** *double*
Value for the r parameter.
**-aux** *double*
Auxiliary map parameter.
**-x0** *double*
Initial value for x.
**-func** *string*
Map function to use (one of 'log', 'tent', 'sin',
or 'gauss').

#### MAPS

The following four one-dimensional maps are allowed:
Logistic Map:
x(t+1) = 4 * r * x(t) * (1.0 - x(t))
Tent Map:
x(t+1) = (x(t) <= 0.5) ? 2 * r * x(t) : 2r * (1.0 -
x(t))
Sine Map:
x(t+1) = sin(x(t) * PI * aux * 2 * r) / 2 + 0.5
Gaussian Map:
x(t+1) = r * exp(-aux * (x(t) - 0.5) * (x(t) -
0.5))
See the file "maps1d.c" to see how to add user-defined
maps.

#### MISCELLANY

Use a plotting program (such as gnuplot) or a spreadsheet
to plot the data.

#### BUGS

No sanity checks are performed to make sure that any of
the options make sense.

#### AUTHOR

Copyright (c) 1997, Gary William Flake.
Permission granted for any use according to the standard
GNU ``copyleft'' agreement provided that the author's com-
ments are neither modified nor removed. No warranty is
given or implied.