far (version 0.6-7)

is.na.fdata: Not Available / ``Missing'' Values

Description

The generic function is.na returns a logical vector of the same ``form'' as its argument x, containing TRUE for those elements marked NA or NaN (!) and FALSE otherwise. dim, dimnames and names attributes are preserved.

Usage

# S3 method for fdata
is.na(x)

Value

A matrix of Logical values giving as rows the variables of x

and as columns the observation.

Arguments

x

A fdata object

Author

J. Damon

Details

An observation is considered as NA if any of its values is NA.

See Also

NA

Examples

  # Reading of the data
  library(stats)
  data(UKDriverDeaths)
  UKDriverDeaths[20]<-NA

  # Making the data of class 'fdata'
  fUKDriverDeaths <- as.fdata(UKDriverDeaths,col=1,p=12,dates=1969:1984,
                            name="UK Driver Deaths")
  summary(fUKDriverDeaths)
  is.na(fUKDriverDeaths)