How to make discrete pcolor x-axis with no gaps between datapoints?

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MP 2022-7-11

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https://ww2.mathworks.cn/matlabcentral/answers/1756955-how-to-make-discrete-pcolor-x-axis-with-no-gaps-between-datapoints

回答： Steven Lord 2022-7-11

Is it possible to make a plot of continous discrete data? Something like shown in figure below? This is a simple representation of problem.

Here, B-axis is continous, while A-axis is discrete. Though the x-axis breaks, I do not want any gap between the datapoints. Basically, A-axis does not run continously from 0-300. Rathar it should select discrete x-points, 0-3-4-7-9 etc.... and make a continous plot.

Also, I would like to clarify that I am not making a 2-D plot (like the one shown here), I have a "pcolor plot".

Any help will be greatly appriciated.

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Answer 1

Steven Lord 2022-7-11

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https://ww2.mathworks.cn/matlabcentral/answers/1756955-how-to-make-discrete-pcolor-x-axis-with-no-gaps-between-datapoints#answer_1004530

在 MATLAB Online 中打开

So instead of doing something like plotting data points with their actual X coordinates:

v = 1:10;

x = v.^2;

stem(x, v)

You want to plot the data points at x = 1, 4, 9, 16, etc. separated by only one space? If so, the easiest way is not to change the data but to change the labels.

figure

stem(v, v);

xticks(v);

xticklabels(string(x))

Though that could lead to erroneous conclusions on the part of people looking at your graph.