compute nansum

compute.nansum( arr )

Computes the sum of an array ignoring non-numeric values.

var data = [ 2, NaN, 4, 2, 7, NaN, 3 ];

var sum = compute.nansum( data );
// returns 18

For object arrays, provide an accessor function for accessing array values

var data = [
	[1,2],
	[2,NaN],
	[3,4],
	[4,2],
	[5,7],
	[6,NaN],
	[7,3]
];

function getValue( d ) {
	return d[ 1 ];
}

var sum = compute.nansum( data, getValue );
// returns 18