update plot from loop using function

Question

lior lion 2021-12-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1616055-update-plot-from-loop-using-function

评论： lior lion 2021-12-22

采纳的回答： Walter Roberson

在 MATLAB Online 中打开

hi, i have a function analys some data and plot it.

i want to plot a number of figures tgether, using a loup that change the data every loup.

how can i print tham all?

thank a lot!!!!

function [k] = lot_plot(b)
figure
for i=1:n
    my_function_that_plot(i)
end
plot(all_of_tham) ?% need to see n figurse in one plot
end

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Mathieu NOE 2021-12-22

hello

it's a bit unclear what data must be displayed in each plot (one plot or multiple subplots ? )

can you clarify ?

tx

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Answer 1

Walter Roberson 2021-12-22

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1616055-update-plot-from-loop-using-function#answer_860185

在 MATLAB Online 中打开

function [k] = lot_plot(b)
    figure
    for i=1:n
        all_of_tham(:,i) = my_function_that_plot(i, b);
    end
    semilogx(all_of_tham) % need to see n figurse in one plot
end

Notice that the data was put into different columns . Each column will generate a new line.

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Walter Roberson 2021-12-22

在 MATLAB Online 中打开

Considering your example structure

for i=1:n
    my_function_that_plot(i)
end
plot(all_of_tham)

and you do not want to return anything from the function, then is it correct that you want the function my_function_that_plot to automatically write into the variable all_of_tham that is local to the workspace lot_plot ? That is possible but it is seldom a good idea.

lior lion 2021-12-22