Hi,
Apologies if there is already an easy way to achieve the following.
What I'm looking for is the ability to specify that the values of t for
which x,y should be evaluated should increase logarithmically. Even more
useful would be the ability to do this over a range spanning from negative
to postive aswell, e.g. -100, -10, -1, -0.1, -0.01, 0.01, 0.1, 1, 10, 100.
Another refinement would be the ability to loop through infinity, rather
than zero, i.e. -0.01, -0.1, -1, -10, -100, 100, 10, 1, 0.1, 0.01.
This would be particularly useful for plotting Nyquist plots, where one
needs to plot a complex function of w, for -inf < w < inf. If a linear
range is used, then an awful lot of samples need to be taken to get a smooth
curve in the regions of low w.
I'm, not sure how best this could be implemented, but one solution might be
to add three options:
(un)set logparametric: Instructs gnuplot to take samples of t at
logarithmic intervals (identical to setting x axis to logarithmic in
behaviour).
(un)set logparametricnegative Instructs gnuplot to mirror the samples
of t to include negative values aswell.
(un)set logparametricthroughinf Tells gnuplot to order the samples of t
such that they start and finish at +-0, looping through inf as opposed to
starting and finishing at +-inf and looping through 0.
Any thoughts on whether this might be achievable?
Many thanks,
Chris Key
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