scipy.cluster
scipy.cluster.vq
scipy.cluster.hierarchy
scipy.constants
scipy.fft
scipy.fftpack
scipy.integrate
scipy.interpolate
scipy.io
scipy.linalg
scipy.linalg.blas
scipy.linalg.lapack
scipy.linalg.interpolative
scipy.misc
scipy.ndimage
scipy.odr
scipy.optimize
scipy.signal
scipy.sparse
scipy.sparse.linalg
scipy.sparse.csgraph
scipy.spatial
scipy.spatial.distance
scipy.special
scipy.stats
scipy.stats.contingency
scipy.stats.mstats
scipy.stats.qmc
scipy.stats.sampling
dok_array.trace
Returns the sum along diagonals of the sparse matrix.
Which diagonal to get, corresponding to elements a[i, i+offset]. Default: 0 (the main diagonal).
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