This function is intended for cases where Operation is O(M*log(K)), where M = size ( x, dim) and Programming Note: nth_element encapsulates the C++ standard libraryĪlgorithms nth_element and partial_sort. If x is an array, nth_element operates along the dimensionĭefined by dim, or the first non-singleton dimension if dim is Or descending u:-1:l, in which case a range of elements is returned. N can also be a contiguous range, either ascending l:u The result is equivalent to sort( x)( n). Select the n-th smallest element of a vector, using the ordering defined by This function does not support sparse matrices.īuilt-in Function: nth_element ( x, n) Built-in Function: nth_element ( x, n, dim) The array is sorted by rows as output by the function sortrows If the optional argument "rows" is supplied, check whether May be either "ascending", "descending", orīy default, mode is "ascending". Return true if the array is sorted according to mode, which Singleton dimensions, returning the number of dimensions removed in theīuilt-in Function: issorted ( a) Built-in Function: issorted ( a, mode) Built-in Function: issorted ( a, "rows", mode)
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Then the dimensions of x are shifted to the right, with nĬalled with a single argument, shiftdim, removes the leading With the leading dimensions circulated to the end. When n is positive, the dimensions of x are shifted to the left, Shift the dimensions of x by n, where n must be If the optional dim argument is given, operate along this dimension.įunction File: y = shiftdim ( x, n) Function File: = shiftdim ( x) If x is a matrix, do the same for each column of x. If x is a vector, perform a circular shift of length b of For example:įunction File: shift ( x, b) Function File: shift ( x, b, dim) If an element of n is zero, then the correspondingĭimension of x will not be shifted. Negative, which determines the direction in which the values or xĪre shifted. The values of n can be either positive or N must be a vector of integers no longer than the number ofĭimensions in x. Resizing an object to fewer dimensions is not possible.Ĭircularly shift the values of the array x. In such case the missing dimensions are assumed to be 1.
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If m, n, … are all scalars, then the dimensions ofĭimensions of the result are given by the elements of that vector.Īn object can be resized to more dimensions than it has If only m is supplied, and it is a scalar, the dimension of the