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Statistics — NumPy v2.5 Manual
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Statistics#

Order statistics#

ptp(a[,axis,out,keepdims])

Range of values (maximum - minimum) along an axis.

percentile(a,q[,axis,out,...])

Compute the q-th percentile of the data along the specified axis.

nanpercentile(a,q[,axis,out,...])

Compute the qth percentile of the data along the specified axis, while ignoring nan values.

quantile(a,q[,axis,out,overwrite_input,...])

Compute the q-th quantile of the data along the specified axis.

nanquantile(a,q[,axis,out,...])

Compute the qth quantile of the data along the specified axis, while ignoring nan values.

Averages and variances#

median(a[,axis,out,overwrite_input,keepdims])

Compute the median along the specified axis.

average(a[,axis,weights,returned,keepdims])

Compute the weighted average along the specified axis.

mean(a[,axis,dtype,out,keepdims,where])

Compute the arithmetic mean along the specified axis.

std(a[,axis,dtype,out,ddof,keepdims,...])

Compute the standard deviation along the specified axis.

var(a[,axis,dtype,out,ddof,keepdims,...])

Compute the variance along the specified axis.

nanmedian(a[,axis,out,overwrite_input,...])

Compute the median along the specified axis, while ignoring NaNs.

nanmean(a[,axis,dtype,out,keepdims,where])

Compute the arithmetic mean along the specified axis, ignoring NaNs.

nanstd(a[,axis,dtype,out,ddof,...])

Compute the standard deviation along the specified axis, while ignoring NaNs.

nanvar(a[,axis,dtype,out,ddof,...])

Compute the variance along the specified axis, while ignoring NaNs.

Correlating#

corrcoef(x[,y,rowvar,dtype])

Return Pearson product-moment correlation coefficients.

correlate(a,v[,mode])

Cross-correlation of two 1-dimensional sequences.

cov(m[,y,rowvar,bias,ddof,fweights,...])

Estimate a covariance matrix, given data and weights.

Histograms#

histogram(a[,bins,range,density,weights])

Compute the histogram of a dataset.

histogram2d(x,y[,bins,range,density,...])

Compute the bi-dimensional histogram of two data samples.

histogramdd(sample[,bins,range,density,...])

Compute the multidimensional histogram of some data.

bincount(x,/[,weights,minlength])

Count number of occurrences of each value in array of non-negative ints.

histogram_bin_edges(a[,bins,range,weights])

Function to calculate only the edges of the bins used by the histogram function.

digitize(x,bins[,right])

Return the indices of the bins to which each value in input array belongs.


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