R/cummean.R
cummean.Rd
Returns a vector whose elements are the cumulative mean of the elements of the argument.
cummean(x)
a numeric or complex object, or an object that can be coerced to one of these.
A numeric vector
cummean(1:10) #> [1] 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5