Summing totals for array with depth

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I've of course tried searching for a specific example, or an example to get me close to an answer. I'm trying to obtain the sum of a multi-depth array of objects.

My data structure is as follows :

[
    {
        "values":[
            {
                "values":[
                    {
                        "value":{
                            "value":"51214.35"
                        },
                    }
                ],
            }
        ],
    },
    {
        "values":[
            {
                "values":[
                    {
                        "value":{
                            "value":"10632.00"
                        },
                    },
                    {
                        "value":{
                            "value":"15000.00"
                        },
                    }
                ],
            }
        ],
    }
]

What I would like is for their to be a property for each object that has the sum of all the value properties that are further in depth.

For Example:

[
        {
            "total":"51214.35",
            "values":[
                {
                    "total":"51214.35",
                    "values":[
                        {
                            "total":"51214.35",
                            "value":{
                                "value":"51214.35"
                            },
                        }
                    ],
                }
            ],
        },
        {
            "total":"25632.00",
            "values":[
                {
                    "total" : "25632.00",
                    "values":[
                        {
                            "total": "10632.00",
                            "value":{
                                "value":"10632.00"
                            },
                        },
                        {
                            "total": "15000.00",
                            "value":{
                                "value":"15000.00"
                            },
                        }
                    ],
                }
            ],
        }
    ]

I know recursion will probably come into play since there's an unknown depth...

You can make a function that takes an object and if it has a value set that as its totals property. If it doesn't sum the total of calling the same function on each item in the array values.

You need to be careful with the sum since you have strings not numbers as the values, but otherwise it's pretty straightforward recursion.

let arr = [{"values":[{"values":[{"value":{"value":"51214.35"},}],}],},{"values":[{"values":[{"value":{"value":"10632.00"},},{"value":{"value":"15000.00"},}],}],}]

function setTotals(obj){
    obj.totals = obj.hasOwnProperty('value')
        ? parseFloat(obj.value.value)
        : obj.values.reduce((sum, item) => sum + setTotals(item), 0)
    return obj.totals
}
arr.forEach(item => setTotals(item))
console.log(arr)

How to sum up specific array elements? - JavaScript, How to sum up particular elements of an array that will equal a particular number. Depth-first search (DFS) is an algorithm for traversing or searching { return item + total; }, 0); console.log(cidtotal); var real2 = real.slice();  This very simply starts with a sum of 0 and add each item in the array as we go: public static int findSumWithoutUsingStream(int[] array) { int sum = 0; for (int value : array) { sum += value; } return sum; } 2.2. Sum With the Java Stream API

const values = [
    {
        "values":[
            {
                "values":[
                    {
                        "value":{
                            "value":"51214.35"
                        },
                    }
                ],
            }
        ],
    },
    {
        "values":[
            {
                "values":[
                    {
                        "value":{
                            "value":"10632.00"
                        },
                    },
                    {
                        "value":{
                            "value":"15000.00"
                        },
                    }
                ],
            }
        ],
    }
];


const total = values => values.reduce((t, i) => {
  const currentTotal = i.value ? t + parseFloat(i.value.value) : i.values ? t + total(i.values) : t;
  i.total = currentTotal;
  return currentTotal;
}, 0);

total(values);

console.log(values);

Rewriting JavaScript: Sum an Array - Chris Burgin, In this post we are going to cover how to find the sum of an array. loop to iterate through our array numbers and total up the array using sum . ES6 In Depth — covers ES6 topics by the guys who implemented it in Firefox! To get the sum of all elements in a numpy array, you can use Numpy’s built-in function sum (). The syntax of numpy.sum () is shown below. numpy.sum(a, axis=None, dtype=None, out=None, keepdims=<no value>, initial=<no value>) Example 1: Numpy sum ()

Try this:

function calcTotal(data) {
    if (Array.isArray(data)) data.map(calcTotal)
    let total = 0
    if (data.hasOwnProperty('values')) total = data.values.map(calcTotal).reduce((acc, v) => acc + v.total, 0)
    else if (data.hasOwnProperty('value')) total = parseFloat(data.value.value)
    return Object.assign(data, { total })
}(data)

Handbook of Parallel Computing: Models, Algorithms and Applications, the sum of N values stored in array A. A high-level work-depth description of the apply the algorithm recursively on the ⌈N/k⌉ partial sums until the total sum  Array Formula to Sum Multiple Columns in Google sheets. The MMULT function is the possibly best way to get expanding sum in Google Sheets. But it’s not the one and only solution. Before going to the MMULT, here is one common formula that can be used as an Array Formula to Sum Multiple Columns in Google sheets. Array Formula 1:

Acoustical Imaging: Volume 28, The summed data with no time delays simulate the case of a single element To focus the array to a depth fon transmit, the time delay tn required for ring n of the The array was designed to have a total aperture of 6 mm, a geometric focus of​  S = sum (A) returns the sum of the elements of A along the first array dimension whose size does not equal 1. If A is a vector, then sum (A) returns the sum of the elements. If A is a matrix, then sum (A) returns a row vector containing the sum of each column.

The Essential Physics of Medical Imaging, Summed Proximal echoes Phase alignment -< Variable timing circuitry (length of of the linear array beam varies with depth, dependent on the total width of the  Summing with Arrays Posted 01-16-2013 (14530 views) Hello, I'm trying to run a simple code that will allow me to create a new variable (ppt_sum{i}) that will allow me to sum from variable i to variable 1.

Soil Water Dynamics, drain depth a, and the total depth is D. An appropriate image array is given in constant added to give the correct H along y = a, Kirkham (1957) summed the  Alternatively, you can calculate the sum using reduce (ECMAScript 5 feature - doesn't work in older browsers) var sum = units.reduce(function(a, b) { return a + b }); And ES6 version. var sum = units.reduce((a, b) => a + b);

Comments
  • The total value of the second object should be 25632.00, but this produces 76846.35
  • But you've attached that total to the second object in the array— values[1].total is 76846.35 that's not what the OP asked for and it's not the total of values[1]