Do you actually know what "contingency table" means?
The tables in your example make no sense at all as contingency
tables *especially if "obs" means "observed" and "exp" means
"expected".
You can, however, extra the tables in the manner which you seem
to desire, as follows: Let your data object be called "dat". (And
surely this object is either a data frame or a matrix --- judging by
the display --- and *NOT* a list. Learn to use correct terminology
and you will be much more likely to get useful replies to your questions.)
dat <- as.matrix(dat) # To make sure it's a matrix r.t. a data frame.
xxx <- lapply(1:nrow(dat),
function(i,x){matrix(x[i,],ncol=2,byrow=TRUE)},x=dat)
Now "xxx" is a (genuine!) list, and the i-th entry of this list is the
i-th table from
your "required" set of tables. E.g.:
xxx[[3]]
[,1] [,2]
[1,] 3 7
[2,] 435 525
cheers,
Rolf Turner
On 21/12/11 07:36, reena wrote:
This is my list.
obs1 obs2 exp1 exp2
3 8 725 875
0 0 58 70
3 7 435 525
10 7 754 910
0 1 145 175
and i want result in contingency table as
obs 3 8
exp 725 875
next table will be
obs 0 0
exp 58 70
and so on...
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