sigex.i2rag | R Documentation |
Reads in a multivariate time series and generates a list of missing value indices
sigex.i2rag(z)
z |
raw data as N x T matrix with missing values at various time points. Missing values are at any 1 <= t <= T, and occur for some of the N series (the ragged case), and are denoted with a 1i. That is, Im(z[,t]) = rep(1i,N) or subset thereof encodes missing values. |
list containing leads.rag and ragged leads.rag: an integer sequence of indices that have at least one missing value These integers are a subset of 1,2,...,T. ragged: a list with number of items equal to length of leads.rag within the sample 1,2,...,T. (ragged=NULL if there are none.) Each element contains indices of vector components that are missing. Note: ragged[[j]] must be non-empty, where leads[j] is the time where at least one missing value (in-sample) occurs.
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