Data series extraction
ftse = extfield(tsobj, fieldnames)
Financial time series object
Data series to be extracted. A cell array if a list of data series names (fieldnames) is supplied. A string if only one is wanted.
ftse = extfield(tsobj, fieldnames) extracts from tsobj the dates and data series specified by fieldnames into a new financial time series object ftse. ftse has all the dates in tsobj but contains a smaller number of data series.
extfield is identical to referencing a field in the object. For example,
ftse = extfield(fts, 'Close')
is the same as
ftse = fts.Close
This function is the complement of the function rmfield.