Change variable name in plot

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Gabriele Curcio ，2022-5-5

编辑： Stephen23 ，2022-5-5

I have these variables as a double:

time; run_0; run_1; run_3; ...; run_23

how can I plot them without rewriting everytime the function plot?

The idea is:

for i = 0:23
    plot(time, run_i); %index 'i' to change dynamically
    hold on
end

I do not know how to write the index 'i'.

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Gabriele Curcio 2022-5-5

Ok, I manage to get the expected result! Thank you very much

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回答（1 个）

Constantino Carlos Reyes-Aldasoro 2022-5-5

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1712075-change-variable-name-in-plot#answer_957510

As mentioned before, this is not the best way to handle your data, BUT you are where you are, so to be able to use the names run_0, run_1, etc you need to concatenate strings:

for i =0:10
    name = strcat('run_',num2str(i))
end
name = 'run_0'
name = 'run_1'
name = 'run_2'
name = 'run_3'
name = 'run_4'
name = 'run_5'
name = 'run_6'
name = 'run_7'
name = 'run_8'
name = 'run_9'
name = 'run_10'

Further, do not use i for a counter, i can be used for imaginary numbers, better to use a sensible name like "counterRuns" or something that has a meaning.

Hope this solves your problem