MATLAB

得到当前时间的字符串

'Time_',datestr(now,30)

画图基本操作

figure
x =pmw;
y = communication_cost;
plot(x,y, '.r');
xlabel('$p\left({M} | {W}\right) $','interpreter','latex' ) %latex代表表示公式
ylabel("communication cost mb/s")
print(gcf,[fold_path, 'pwd_communication_node9_before_train.jpg'],'-djpeg', '-r300') %设置分辨率
saveas(gcf,[fold_path, 'pwd_communication_node9_before_train.fig']);

  save([dir_path, 'data.mat'],'data') ;

随机相关函数

% 依据概率随机选择
a=[1 2 3 4 5]
Prob=[0.31 0.07 0.33 0.09 0.2]
S=randsrc(1,1,[a;Prob])