Displaying 2 results from an estimated 2 matches for "vd4".
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vd
2010 Jan 04
3
vectors into a matrix
Dear all,
I'm writing code to do automatically several
calculations and gather the results in a matrix.
I have the following vectors and
I just want to make a matrix with them:
VD1
VD2
VD3
...
VD12
*In this case, this series of vectors stops there, in 12,
but it could be a higher number or smaller.
(for example: VD1, VD2 and VD3; only)
(or for example: VD1, VD2, ... till VD78)
All
2010 Mar 02
1
sem package and growth curves
I have been working through the book "Applied longitudinal data analysis: modeling change and event occurrence" by Judith D. Singer and John B. Willett. I have been working examples using SAS and also using it as an opportunity for learning to use R for statistical analysis.
I ran into some difficulties in chapter 8 which deals with using structural equation modeling. I have tried to