ismonotonic 1.0

ISMONOTONIC(X) returns a boolean value indicating whether or not a vector is monotonic.By default, ISMONOTONIC returns true for non-strictly monotonic vectors,and both monotonic increasing and monotonic decreasing vectors. Formatrices and N-D arrays, ISMONOTONIC returns a value for each column inX.ISMONOTONIC(X, 1) works as above, but only returns true when X isstrictly monotonically increasing, or strictly monotonically decreasing.ISMONOTONIC(X, 0) works as ISMONOTONIC(X).ISMONOTONIC(X, [], 'INCREASING') works as above, but returns true onlywhen X is monotonically increasing.ISMONOTONIC(X, [], 'DECREASING') works as above, but returns true onlywhen X is monotonically decreasing.ISMONOTONIC(X, [], 'EITHER') works as ISMONOTONIC(X, []).ISMONOTONIC(X, [], [], DIM) works as above, but along dimension DIM.NOTE: Third input variable is case insensitive, and partial matching isused, so 'd' would be recognised as 'DECREASING' etc..EXAMPLE: x = [1:4; 6:-2:2 3] ismonotonic(x) ismonotonic(x, [], 'i') ismonotonic(x, [], [], 2) x = 1 2 3 4 6 4 2 3 ans = 1 1 1 1 ans = 1 1 0 0 ans = 1 0NEW FEATURES in v1.1:Code now fully vectorised.Support for N-D arrays.Character arrays now allowed.ACKNOWLEDGEMENTS:Thanks to Jos X for advice on vectorisation

Requirements:	No special requirements
Platforms:	Matlab
Keyword:	Dimension,  Input,  Insensitive,  Matching,  Partial,  Recognised,  Variable
Users rating:	0/10