How can I draw Multivariate Scatter Plot?
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Hello, I want to draw a multivariate scatter plot. I have 3 variables. 2 of them have 3 categories and one of them have 4 categories. Is gplotmatrix function true for this purpose? Thank you...
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Elton Rexhepaj
le 26 Fév 2013
You can use a paralel cordinate plot but doing a standartization of each variable prior to ploting.
parallelcoords(X)
wehre X is your multivariate data with rows representing samples and columns variables
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Tom Lane
le 28 Fév 2013
You could use gscatter to plot two of them with coloring determined by the third. You could use plotmatrix or gplotmatrix to plot sets of pairs. You could draw a multivariate scatter plot like this:
a = randi(3,20,1);
b = randi(3,20,1);
c = randi(4,20,1);
plot3(a,b,c,'bo')
However, with such course data (few distinct values) I suspect you might not see much.
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