Re: How do I make a log-log plot?



On 7/27/05, Raymond Toy  wrote:

>     Robert> At this point my recommendation is to turn on the gnuplot
>     Robert> option for a logarithmic plot when plot2d is given the log plot
>     Robert> option and the plot_format is gnuplot or mgnuplot,
>     Robert> and otherwise print a warning message and carry out the
>     Robert> log transform in plot.lisp (i.e., plot f(log(x)) instead of f(x)).
> 
> I think I agree with what you say.
> 
> But the log option really only means sample the x axis in a
> logarithmic fashion.  The resulting plot probably won't look too
> different between the log-sampled and non-log-sampled versions,
> because the adaptive plotting will make sure enough samples are taken.

Surely it's not too late for us to assign a different meaning to
the plot2d log option. Wouldn't it be more useful to the end user if
log = true means to make a logarithmic plot, with an understanding
that Maxima will do whatever is necessary to make it look right?
Perhaps I've misunderstood what you're getting at.

Robert Dodier