find_nonmissing_subsample {bootUR}  R Documentation 
Find NonMissing Subsamples
find_nonmissing_subsample(X)
X 
A (TxN)matrix of N time series with T observations. Data may also be in a time series format (e.g. 
A list with the following components

(2xN)dimensional matrix containing the first and last nonmissing observation in each column of X. 

Logical value indicating whether all series have the same nonmissing indices. 