generating a more detailed contour plot
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hello, I am using contourf to plot a color map for a Xi squared table. but since the lowest values are very low, and some values are very high, the resolution is not good enough.
How can I get a higher reolution plot?
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Jon
2022-5-18
If you want more contor lines (is this what you mean by resolution?) you can use the additional levels argument to do this, so for example if you wanted contour lines for 100 different levels
contour(Z,100)
or
contour(X,Y,Z,100)
5 个评论
Tal Shavit
2022-5-18
Jon
2022-5-18
You can also specify a vector of values of the levels you want plotted. If the data has a large range of orders of magnitude you could specify a logarithmically spaced vector of levels like this,
zmin = 0.1; % what ever value you want for the first contour level
zmax = 1000; % what ever value you want for the last contour level
levels = logspace(zmin,zmax);
contour(Z,levels)
Jon
2022-5-18
For color map (filled) just use the above with contourf instead of contour
Tal Shavit
2022-5-18
Jon
2022-5-18
Your welcome. If that answered your question then please accept the answer. That will take it off of the list of unanswered questions, and let others with a similar question know an answer is available. Thanks
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