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Mendix is a low-code development platform that allows users to create custom business applications, but it doesn't have built-in functions for calculating standard deviation. However, you can use JavaScript in Mendix to calculate standard deviation. Here's how:

- Create a new JavaScript action in your Mendix application.
- Define the input parameter(s) for the action. For example, you might want to pass in an array of numbers to calculate the standard deviation of.
- In the JavaScript code, calculate the mean of the input data by summing up all the values and dividing by the total count of values.
- Calculate the variance by summing up the square of the difference between each value and the mean, and dividing by the total count of values.
- Take the square root of the variance to get the standard deviation.
- Return the standard deviation as the output of the JavaScript action.

Here's a sample JavaScript code to calculate the standard deviation in Mendix:

// Define the input parameter(s)

const inputData = input.data1;

// Calculate the mean

const mean = inputData.reduce((acc, val) => acc + val, 0) / inputData.length;

// Calculate the variance

const variance = inputData.reduce((acc, val) => acc + Math.pow(val - mean, 2), 0) / inputData.length;

// Calculate the standard deviation

const standardDeviation = Math.sqrt(variance);

// Return the standard deviation as the output of the action

output = { result: standardDeviation };

In this code, `input.data1`

represents an array of numbers passed in as input to the JavaScript action. The output is returned as an object with the `result`

property containing the calculated standard deviation.

asked

Muhammad Ikhwan Afiq bin Azmir

0 answers