Hi all,

I have 4 matrices, each having  5 columns and 4 rows .....denoted by
B1,B2,B3,B4.
I have generated a vector of 7 indices, say (1,2,4,3,2,3,1} which refers to
the index of the matrices to be chosen and then appended one on the top of
the next: like, in this case, I wish to have the following mega matrix:
B1over B2 over B4 over B3 over B2 over B3 over B1.

1> How can I achieve this?
2> I don't want to manually identify and arrange the matrices for each
vector of index values generated   (for which the code  I used is :
index=sample( 4,7,replace=T)). How can I automate the process?

Basically, I am doing bootstrapping , but the observations are actually 4X5
matrices.

Appreciate your help.


Thanks,
Preetam


---

Preetam Pal
(+91)-9432212774
M-Stat 2nd Year,                                             Room No. N-114
Statistics Division,                                           C.V.Raman
Hall
Indian Statistical Institute,                                 B.H.O.S.
Kolkata.

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