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3.5.2.36 Rms
Description
rms function returns the root mean square of a vector.
The rms value for a set of n values /math-3a0e244132c36c88b17e1f6d1a395d6a.png?v=0 "\{x_1, \ x_2,..., \ x_n\}")
is given by:
/math-d917e79348e59f6824420897c793886b.png?v=0 "x_{\mathrm{rms}}=\sqrt{ \frac{ \sum_{i=1}^{n} x_i^2 }{n} }")
Syntax
double rms(dataset vd)
Parameters
vd
- Input vector to calculate
Return
Return the root mean square of a vector.
Note: Missing values in vd won't be counted.
Example
//Calculate the root mean square of a vector. yr = rms(col(A));