Plot different classes in different colors

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Rafael Freire
Rafael Freire 2011-4-6
评论： Walter Roberson 2018-3-26
I' m doing a pca and I want make a general function to plot two different classes in different colors( blue square, red circle) in the same figure and i want to use this funtion in any other experiment
Resuming: for the data above, the values of class 1 must be in different color in the class 2 in the same figure
for example
Var1 Var2 Var*n* Class
2.3 0.22 12 1
2.4 0.23 11 1
2.8 0.21 15 2
2.1 0.21 16 1
2.9 0.23 14 2
Best regards Rafael
  2 个评论
bym
bym 2011-4-6
do you want to plot Var1 vs Var2, or each variable in a separate plot colored according to class?

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采纳的回答

Walter Roberson
Walter Roberson 2011-4-6
class1 = V(:,4) == 1;
plot3(V(class1,1), V(class1,2), V(class1,3), 'bs.');
hold on
plot3(V(~class1,1), V(~class1,2), V(~class1,3), 'ro.');
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joynjo
joynjo 2018-3-24
how to show different color of score in image?

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更多回答（2 个）

Matt Tearle
Matt Tearle 2011-4-7
gscatter doesn't do what you're looking for?
Rafael Freire
Rafael Freire 2011-4-7
I done that above, but I don´t Know if its right. One it is the set that has values of 1 and 2 and another is the class that assume values of 1 and 2; in pca the plots must be visualized in two different regions that is the 2 classes and in each region has 2 set of experiments, set 1 and set 2.
set1=milk(:,12)==1;
set2=milk(:,12)==2;
class1=milk(:,13)==1;
class2=milk(:,13)==2;
setclass11=class1&set1;
setclass12=class1&set2;
setcclass21=class2&set1;
setclass22=class2&set2;
figure
hold on;
plot (scores(setclass11,1),scores(setclass11,2),'.r','markersize', 20);
plot (scores(setclass12,1),scores(setclass12,2),'.m','markersize', 20);
plot (scores(setclass21,1),scores(setclass21,2),'^b','markersize', 7);
plot (scores(setclass22,1),scores(setclass22,2),'^c','markersize', 7);
it works....but...

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