Get the number of observation points
This functions returns the number of observation points in an object of class
funData, multiFunData or irregFunData.
nObsPoints(object)
object |
An object of class |
Depending on the class of object, the function returns different
values:
If object is of class funData, the
function returns a vector of length dimSupp(object), giving the number
of observations in each dimension.
If object is of class
multiFunData, the function returns a list of the same length as
object, where the j-th entry is a vector, corresponding to the
observations point of object[[j]].
If object is of class
irregFunData, the function returns an array of length
nObs(object), where the j-th entry corresponds to the number of
observations in the j-th observed function.
The number of observation points in object. See Details.
Do not confound with nObs, which returns the
number of observations (i.e. the number of observed functions) in an object
of a functional data class.
# Univariate (one-dimensional) object1 <- funData(argvals = 1:5, X = rbind(1:5, 6:10)) nObsPoints(object1) # Univariate (two-dimensional) object2 <- funData(argvals = list(1:5, 1:6), X = array(1:60, dim = c(2, 5, 6))) nObsPoints(object2) # Multivariate multiObject <- multiFunData(object1, object2) nObsPoints(multiObject) # Univariate (irregular) irregObject <- irregFunData(argvals = list(1:5, 2:4), X = list(2:6, 3:5)) nObsPoints(irregObject)
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