function mskmax( N, x, strideX, mask, strideMask ) {
	return ndarray( N, x, strideX, stride2offset( N, strideX ), mask, strideMask, stride2offset( N, strideMask ) ); // eslint-disable-line max-len
}
Computes the maximum value of a strided array according to a mask.

@param {PositiveInteger} N - number of indexed elements
@param {NumericArray} x - input array
@param {integer} strideX - `x` stride length
@param {NumericArray} mask - mask array
@param {integer} strideMask - `mask` stride length
@returns {number} maximum value

@example
var x = [ 1.0, -2.0, 4.0, 2.0 ];
var mask = [ 0, 0, 1, 0 ];

var v = mskmax( x.length, x, 1, mask, 1 );
// returns 2.0