feat:node-modules

node_modules/mathjs/lib/esm/function/statistics/sum.js

@@ -0,0 +1,85 @@
+import { containsCollections, deepForEach, reduce } from '../../utils/collection.js';
+import { factory } from '../../utils/factory.js';
+import { safeNumberType } from '../../utils/number.js';
+import { improveErrorMessage } from './utils/improveErrorMessage.js';
+var name = 'sum';
+var dependencies = ['typed', 'config', 'add', 'numeric'];
+export var createSum = /* #__PURE__ */factory(name, dependencies, _ref => {
+  var {
+    typed,
+    config,
+    add,
+    numeric
+  } = _ref;
+  /**
+   * Compute the sum of a matrix or a list with values.
+   * In case of a multidimensional array or matrix, the sum of all
+   * elements will be calculated.
+   *
+   * Syntax:
+   *
+   *     math.sum(a, b, c, ...)
+   *     math.sum(A)
+   *     math.sum(A, dimension)
+   *
+   * Examples:
+   *
+   *     math.sum(2, 1, 4, 3)               // returns 10
+   *     math.sum([2, 1, 4, 3])             // returns 10
+   *     math.sum([[2, 5], [4, 3], [1, 7]]) // returns 22
+   *
+   * See also:
+   *
+   *    mean, median, min, max, prod, std, variance, cumsum
+   *
+   * @param {... *} args  A single matrix or multiple scalar values
+   * @return {*} The sum of all values
+   */
+  return typed(name, {
+    // sum([a, b, c, d, ...])
+    'Array | Matrix': _sum,
+    // sum([a, b, c, d, ...], dim)
+    'Array | Matrix, number | BigNumber': _nsumDim,
+    // sum(a, b, c, d, ...)
+    '...': function _(args) {
+      if (containsCollections(args)) {
+        throw new TypeError('Scalar values expected in function sum');
+      }
+      return _sum(args);
+    }
+  });
+
+  /**
+   * Recursively calculate the sum of an n-dimensional array
+   * @param {Array | Matrix} array
+   * @return {number} sum
+   * @private
+   */
+  function _sum(array) {
+    var sum;
+    deepForEach(array, function (value) {
+      try {
+        sum = sum === undefined ? value : add(sum, value);
+      } catch (err) {
+        throw improveErrorMessage(err, 'sum', value);
+      }
+    });
+
+    // make sure returning numeric value: parse a string into a numeric value
+    if (sum === undefined) {
+      sum = numeric(0, config.number);
+    }
+    if (typeof sum === 'string') {
+      sum = numeric(sum, safeNumberType(sum, config));
+    }
+    return sum;
+  }
+  function _nsumDim(array, dim) {
+    try {
+      var sum = reduce(array, dim, add);
+      return sum;
+    } catch (err) {
+      throw improveErrorMessage(err, 'sum');
+    }
+  }
+});