plot2d1
=======

2D plot (logarithmic axes) (obsolete)



Calling Sequence
~~~~~~~~~~~~~~~~


::

    plot2d1(str,x,y,[style,strf,leg,rect,nax])




Arguments
~~~~~~~~~

:str is a string of length three `"abc"`.
    :a can have the following values: `e`, `o` or `g`.
        :e means "empty". Itspecifies the fact that the value of `x` is not
          used (the `x` values are supposed to be regularly spaced, ie 1:<number
          of rows of `y`>). The user must anyway give a value for `x`, 1 for
          instance: `plot2d1("enn",1,y)`.
        : :o means "one". If there are many curves, they all have the same
          x-values: `x` is a column vector of size nl and `y` is a matrix of
          size (nl,nc). For example : `x=[0:0.1:2*%pi]';plot2d1("onn",x,[sin(x)
          cos(x)])`.
        : :g means "general". `x` and `y` must have the same size (nl,nc).
          Each column of `y` is plotted with respect to the corresponding column
          of `x`. `nc` curves are plotted using `nl` points.
        :

    : :b, c can have the values `n` (normal) or `l` (logarithmic).
        :b=l a logarithmic axis is used on the x-axis
        : :c=l a logarithmic axis is used on the y-axis
        :

    :

: :x,y,[style,strf,leg,rect,nax] these arguments have the same meaning
  as in the `plot2d` function.
: :opt_args these arguments have the same meaning as in the `plot2d`
  function.
:



Description
~~~~~~~~~~~

This function is obsolete. USE `plot2d` INSTEAD !!

`plot2d1` plots a set of 2D curves. It is the same as `plot2d` but
with one more argument `str` which enables logarithmic axis. Moreover,
it allows to specify only one column vector for `x` when it is the
same for all the curves.

By default, successive plots are superposed. To clear the previous
plot, use `clf`.

Enter the command `plot2d1()` to see a demo.



Sample
~~~~~~



Examples
~~~~~~~~


::

    // multiple plot without giving x
    x=[0:0.1:2*%pi]';
    plot2d1("enn",1,[`sin`_(x) `sin`_(2*x) `sin`_(3*x)])
    // multiple plot using only one x
    `clf`_()
    plot2d1("onn",x,[`sin`_(x) `sin`_(2*x) `sin`_(3*x)])
    // logarithmic plot
    x=[0.1:0.1:3]'; `clf`_()
    plot2d1("oll",x,[`exp`_(x) `exp`_(x^2) `exp`_(x^3)])




See Also
~~~~~~~~


+ `plot2d`_ 2D plot
+ `plot2d2`_ 2D plot (step function)
+ `plot2d3`_ 2D plot (vertical bars)
+ `plot2d4`_ 2D plot (arrows style)
+ `clf`_ clear or reset the current graphic figure (window) to default
  values


.. _plot2d4: plot2d4.html
.. _clf: clf.html
.. _plot2d: plot2d.html
.. _plot2d2: plot2d2.html
.. _plot2d3: plot2d3.html