Histogram error at euclidian distance

Operator '-' is not supported for operands of type 'matlab.graphics.chart.primitive.Histogram'.

Dist1(i) = sqrt(sum((h1-h(i)).^2));

Both h are histogram objects.

Answer 1

[Image Analyst]

I'm pretty sure someone already answered this today for you and told you that you need to get the bin counts. Look what happens if you leave off the semicolon -- you get an object with all kinds of properties on it:

>> h1 = histogram(rand(1, 1000))
h1 = 
  Histogram with properties:

             Data: [1×1000 double]
           Values: [95 93 86 107 101 114 96 97 109 102]
          NumBins: 10
         BinEdges: [0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1]
         BinWidth: 0.1
        BinLimits: [0 1]
    Normalization: 'count'
        FaceColor: 'auto'
        EdgeColor: [0 0 0]
        

So you need to do something like:

h1 = histogram(data1);
h2 = histogram(data2, h1.BinEdges); % Make sure it has the same bin edges as the first histogram.
counts1 = h1.Values;
counts2 = h2.Values;
Dist12 = sqrt(sum((counts1 - counts2) .^ 2));

or whatever you want to do or whatever formula you want.