the colors red, blue, yellow repeated again in my plot, how I can give each curve in the plot different color

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Matthew Worker
Matthew Worker 2021-6-9
编辑： John Kelly 2021-12-16
clc;
clear;
K=1:30;
for i=1:10
C_T=i*log(K);
plot_T = plot(K,C_T,'-O','LineWidth',2);
hold on
grid on
title('Total Capacity of the System')
xlabel('Number of Users')
ylabel('Total Capacity (bit/s/Hz)')
legend
end

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采纳的回答

Scott MacKenzie
Scott MacKenzie 2021-6-9
One way is to specify a different color in each call to the plot function:
K=1:30;
for i=1:10
C_T=i*log(K);
plot_T = plot(K,C_T,'-O','color', rand(1,3), 'LineWidth',2); % use custom color
hold on
grid on
title('Total Capacity of the System')
xlabel('Number of Users')
ylabel('Total Capacity (bit/s/Hz)')
legend
end
  1 个评论
Scott MacKenzie
Scott MacKenzie 2021-6-9
编辑：John Kelly 2021-12-16
Below is some modified code that increases the number of colors from 7 to 10. The additional colors are random, but you can set them to particular colors if you wish.
ax = gca;
ax.ColorOrder(8:10,:) = rand(3,3); % increase from 7 to 10 colors
hold on;
K=1:30;
for i=1:10
C_T=i*log(K);
plot_T = plot(K,C_T, '-O', 'LineWidth', 2);
hold on
grid on
title('Total Capacity of the System')
xlabel('Number of Users')
ylabel('Total Capacity (bit/s/Hz)')
legend
end

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