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Dear Member I have several question

1. How can I get the number of rows in the alpha series . the function @rows is written to work for alpha series as well but it doesnt .
Syntax: @rows(o)
Argument: matrix, vector, rowvector, sym, series, or group, o
Return: scalar
Returns the number of rows in the matrix object, o.
Example:
scalar sc1=@rows(m1)

It gives me back an error saying that it is only for matrix

2. The function
fetch(options) object_list
what if I have all the elements that i want to fetch saved in a table and cant put by hand one by one , can I somehow refer to each element of the table rows and fetche that element from the database?

Thanks beforehand
Armine

@rows works on a series, but not on an Alpha.

It is somewhat silly to work on a series, to be honest. All series (and alphas) have the same number of rows - and that is the number of observations in the workfile page. Thus to get their size, you can just use @obsrange.


You can cycle through the rows of the table one by one, fetching them in a for loop.