function mskmin( N, x, strideX, mask, strideMask ) {
	return ndarray( N, x, strideX, stride2offset( N, strideX ), mask, strideMask, stride2offset( N, strideMask ) );
}
Computes the minimum value of a strided array according to a mask.

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

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

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