how to plot figures in matlab/matlab中怎么作图

In this blog, I list some skills for figure ploting in Matlab, in case that I need to plot similar figures someday and I forget the commands.

1. A bar figure with rotated text x label
   

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   y = rand(1,5); figure, bar(y); x_test = {'Text 1','Text 2','Text 3','Text 4','Text 5'}; set(gca,'XTickLabel',x_test,'XTickLabelRotation',46);

2.