lib/typedarray.js
function entropy( out, sigma ) {
	var len = sigma.length,
		i;
	for ( i = 0; i < len; i++ ) {
		out[ i ] = ENTROPY( sigma[ i ] );
	}
	return out;
}
function entropy( out, sigma ) {
	var len = sigma.length,
		i;
	for ( i = 0; i < len; i++ ) {
		out[ i ] = ENTROPY( sigma[ i ] );
	}
	return out;
}
ENTROPY // 
FUNCTION: entropy( out, sigma )
Computes the distribution entropy for parameters stored in a typed array.

@param {Array|Int8Array|Uint8Array|Uint8ClampedArray|Int16Array|Uint16Array|Int32Array|Uint32Array|Float32Array|Float64Array} out - output array
@param {Int8Array|Uint8Array|Uint8ClampedArray|Int16Array|Uint16Array|Int32Array|Uint32Array|Float32Array|Float64Array} sigma - input array
@returns {Number[]|Int8Array|Uint8Array|Uint8ClampedArray|Int16Array|Uint16Array|Int32Array|Uint32Array|Float32Array|Float64Array} output array