Description Usage Arguments Value Author(s) References Examples
Returns a vector whose elements are the cumulative sample variance of the elements of the argument.
1 | cumvar(x)
|
x |
a numeric vector. |
A numeric vector of the same length as x
. An NA
value in x
causes the corresponding and following elements of the return value to be NA
. The first entry is always NA
since sample variance requires at least two values.
Arturo Erdely.
Kotz, S., Balakrishnan, N., Read, C.B, Vidakovic, B., Johnson, N.L. (2006) Encyclopedia of Statistical Sciences. Wiley, New Jersey.
1 |
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