scatter function for plotting points with different colors
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txt1=[{'X1'};{'A100'};{'B100'};{'C100'};{'X2'}];
y=[100;150;200;135;140];
x=[200;250;300;225;235];
figure(1),scatter(y, x, 'b^');grid off;
text(y, x, txt1);
title('points')
xlabel('Y');
ylabel('X');
line(y,x,'Color','k','LineWidth',1);
%I need to make X1 and X2 red while the other points are black. If
txt1=[{'A100'};{'B100'};{'C100'};{'X1'};{'X2'}];
%I applied below codes to make red X1 and X2
figure(1),scatter(y, x, 36, [zeros(numel(y)-2,3);1 0 0;1 0 0], '^');grid off;
text(y, x, txt1);
title('points')
xlabel('Y');
ylabel('X');
line(y,x,'Color','k','LineWidth',1);
%How can I implement the last codes for the first situation?
4 个评论
Michael Haderlein
2015-2-19
Looks like this is still part of your old question http://de.mathworks.com/matlabcentral/answers/179209-scatter-function-for-different-colors
However, I have no idea what's the question now? What do you need to implement? Just define txt1, y, and x and run the code I submitted before.
sermet
2015-2-19
Michael Haderlein
2015-2-19
In this case
[zeros(numel(y)-2,3);1 0 0;1 0 0]
becomes
[1 0 0;zeros(numel(y)-2,3);1 0 0]
If you want to modify code you don't understand, it's better to ask for details in the respective thread instead of starting off with new questions which are almost identical.
sermet
2015-2-19
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