Generating a legend for one function that is associated with two variables
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I am putting together a script that plots projectile motion as a function of the initial velocity and the launch angle. I am trying to add a legend that denotes v0 and theta for the plot and updates with the variables assigned in the command window. When I run the script, I get the legend, but the string message associated with the variable is listed twice. Can anyone provide any suggestions? This is the code I have right now for labeling the plot:
% Plot title and legend
title('2D Projectile Motion')
variableconvert = sprintf('Velocity and theta: %3d', v0, theta);
legend(variableconvert)
2 个评论
dpb
2021-2-15
You asked to output two variables but only gave one output field -- so the whole format string is repeated.
variableconvert = sprintf('Velocity %3d and theta: %3d', v0, theta);
would be one way to fix. Salt to suit...
NB: that the '%d' format will limit you to showing only integer values. If that's all you're using, that's fine; you might consider
variableconvert = sprintf('Velocity and theta: %.1f, %.1f', v0, theta);
as another possibility.
Olivia Kline
2021-2-15
回答（1 个）
The call to sprintf contains one format specification and two values. That applies the formatSpec twice.
demo:
sprintf('Demo %d ', 1,2)
Either add another formatSpec or remove one of the values.
sprintf('Demo %d ', 1)
sprintf('Demo %d %d', 1, 2)
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2021-2-15
2021-2-15
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