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Array Manipulation

ARRAY_EQUAL - Provides fast test for data equality in cases where the positions of the differing data elements is not required.

ARRAY_INDICES - Converts one-dimensional subscripts of an array into corresponding multi-dimensional subscripts.

BLAS_AXPY - Updates existing array by adding a multiple of another array.

INVERT - Computes the inverse of a square array.

MAX - Returns the value of the largest element of Array.

MEDIAN - Returns the median value of Array or applies a median filter.

MIN - Returns the value of the smallest element of an array.

REFORM - Changes array dimensions without changing the total number of elements.

REPLICATE_INPLACE - Updates an array by replacing all or selected parts of it with a specified value.

REVERSE - Reverses the order of one dimension of an array.

ROT - Rotates an image by any amount.

ROTATE - Rotates/transposes an array in multiples of 90 degrees.

SHIFT - Shifts elements of vectors or arrays by a specified number of elements.

SIZE - Returns array size and type information.

SORT - Returns indices of an array sorted in ascending order.

TOTAL - Sums of the elements of an array.

TRANSPOSE - Transposes an array.

UNIQ - Returns subscripts of the unique elements in an array.

WHERE - Returns subscripts of nonzero array elements.

XVAREDIT - Provides widget-based editor for IDL variables.

  IDL Online Help (March 06, 2007)