Confusion matrix does not plot anything
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Jon Camilleri
on 15 Nov 2015
Commented: Walter Roberson
on 15 Nov 2015
I am trying to sort out a little algorithm, based on false positive and true positive for my school project, however in my little world, I am still slightly stuck.
addpath ('..')
load('iris-data.csv')
m = iris_data
I try this
plot(nmz(m)), and, this shows an empty graph.
I do not think I will be able to feel satisfied with an empty graph.
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Accepted Answer
Walter Roberson
on 15 Nov 2015
MATLAB does not have a function named nmz() . It does have a function named nnz, number of non-zeros, but that just tells you how many of the values in the array were not equal to 0, which is going to be a scalar value that you are not going to want to plot.
If you have the Statistics Toolbox then you should use http://www.mathworks.com/help/stats/confusionmat.html
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