Find Non-Missing Subsamples
find_nonmissing_subsample(X)
A list with the following components
range
(2x\(N\))-dimensional matrix containing the first and last non-missing observation in each column of X.
all_equal
Logical value indicating whether all series have the same non-missing indices.
A (\(T\)x\(N\))-matrix of \(N\) time series with \(T\) observations. Data may also be in a time series format (e.g. ts
, zoo
or xts
) or data frame. Assumes a prior check on missing values in-sample has been done.