55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
|
/**
|
||
|
|
* @license Apache-2.0
|
||
|
|
*
|
||
|
|
* Copyright (c) 2018 The Stdlib Authors.
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
// MAIN //
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the arithmetic range.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {ndarrayLike} arr - input array
|
||
|
|
* @param {number} j - column index for which to get the range
|
||
|
|
* @param {number} len - number of rows in arr
|
||
|
|
* @returns {NumericArray} arithmetic range
|
||
|
|
*/
|
||
|
|
function range( arr, j, len ) {
|
||
|
|
var min;
|
||
|
|
var max;
|
||
|
|
var x;
|
||
|
|
var i;
|
||
|
|
|
||
|
|
min = arr.get( 0, j );
|
||
|
|
max = min;
|
||
|
|
for ( i = 1; i < len; i++ ) {
|
||
|
|
x = arr.get( i, j );
|
||
|
|
if ( x < min ) {
|
||
|
|
min = x;
|
||
|
|
} else if ( x > max ) {
|
||
|
|
max = x;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return [ min, max ];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// EXPORTS //
|
||
|
|
|
||
|
|
module.exports = range;
|