Compute functional mean

Computes the pointwise mean function across all observations. This is an S3 method for the generic mean function.

Usage

# S3 method for class 'fdata'
mean(x, ...)

Arguments

x

An object of class 'fdata'.

...

Additional arguments (currently ignored).

Value

For 1D fdata: a numeric vector containing the mean function values. For 2D fdata: an fdata object containing the mean surface.

Examples

# 1D functional data
fd <- fdata(matrix(rnorm(100), 10, 10))
fm <- mean(fd)

# 2D functional data
X <- array(rnorm(500), dim = c(5, 10, 10))
fd2d <- fdata(X, argvals = list(1:10, 1:10), fdata2d = TRUE)
fm2d <- mean(fd2d)