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meansdevn The meansdevn function returns the mean and standard deviation of a general lua table that may contain a multi-dimensional array or a mixture of numbers, strings, named keys, and sub-tables. Only numeric values found in the table are used in the calculation. The meann function returns only the mean value. The related meansdev function calculates the mean and standard deviation of a 1-dimensional array, CImage, or list of numbers. Since an array is a specific type of table that contains only numbers or sub-tables, this function can also be used for arrays. SyntaxnMean, nStdDev = meansdevn( tbl )
ExamplesThe following script returns the mean and standard deviation of a 1-dimensional array containing 1 million random numbers.
The next example computes the mean and standard deviation of an ugly, complex table:
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