invalid filename saving figure

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Rose 2022-8-24

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https://ww2.mathworks.cn/matlabcentral/answers/1785235-invalid-filename-saving-figure

评论： Walter Roberson 2022-8-25

I am trying to save this figure using the following code, however I keep getting the error "invalid filename".

Str2 consists of a combination of text and values, to create a unique name, corresponding to the figure at hand. However, something, somewhere goes wrong. I have tried to remove the .png and add it to the saveas command. I have tried to name my figure, like f=figure(), but I cannot discover my error. Any solutions?

    figure(2)
    hold on
    plot(output_time,Principal_stress_fatigue_fy_mx/10^6)
    ylabel('equivalent stress [MPa]')
    xlabel('time [s]')
    grid
    str2="Figure2"+ VTRIM + bank_angle + roll_rate + AC_mission_type(j)+".png"
    saveas(gcf,str2)

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Rose 2022-8-25

it works! Thank you!

Walter Roberson 2022-8-25

Odd. You filled out R2021a as your release, but string() was supported for that parameter in R2021a. R2017a was the last release that did not support string() for that parameter.

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