Function File: y = rms (x) ¶

Function File: y = rms (x, dim) ¶

Compute the root-mean-square (RMS) of the vector x.

The root-mean-square is defined as

rms (x) = SQRT (1/N SUM_i x(i)^2)

If x is a matrix, compute the root-mean-square for each column and return them in a row vector.

If the optional argument dim is given, operate along this dimension.

See also: mean, meansq, peak2rms, rssq, sumsq.

Package: signal