medpy.metric.histogram.correlate_1#
- medpy.metric.histogram.correlate_1(h1, h2)[source]#
Correlation distance.
Turns the histogram correlation into a distance measure for normalized, positive histograms.
\[d_{\bar{corr}}(H, H') = 1-\frac{d_{corr}(H, H')}{2}.\]See
correlate
for the definition of \(d_{corr}(H, H')\).Attributes:
semimetric
Attributes for normalized histograms:
\(d(H, H')\in[0, 1]\)
\(d(H, H) = 0\)
\(d(H, H') = d(H', H)\)
Attributes for not-normalized histograms:
\(d(H, H')\in[0, 1]\)
\(d(H, H) = 0\)
\(d(H, H') = d(H', H)\)
Attributes for not-equal histograms:
not applicable
- Parameters:
- h1sequence
The first histogram.
- h2sequence
The second histogram, same bins as
h1
.
- Returns:
- correlatefloat
Correlation distnace between the histograms.
Notes
Returns 0.5 if one of h1 or h2 contains only zeros.