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case1
2001 May 09
2
[Newbie] Row-Iterator for data.frame??
...and holding the case "caseNo" of the dataFrame.
now, this results in absolutely bad performance.
my question:
what is the most convenient and fastest way to access a single row of a
data.frame? if possible, i'd like something i could use like this:
sTable <- getSpectraTable()
case11 <- getRow( sTable, 11)
wn4000 <- case11$WN4000
is there a built-in function/method in R i didn't find yet?
also i'd like to avoid casting the data.frame to a matrix (or whatever)
for reducing the risks by holding data redundantly.
thank you for your help!
till
__________________...
2012 Dec 06
1
clustering of binary data
...case2 0 0 0 0 0 1 0 NA NA 1 0 0 0 case3 0 0 0 0 0 1 0
0 1 1 0 0 0 case4 1 0 0 0 0 1 0 1 0 1 0 0 0 case5 0 0 0 0 0 1 0 0 1 1 0 0
0 case6 0 1 0 0 0 1 0 1 0 1 0 0 0 case7 0 1 0 0 0 1 0 0 1 1 0 0 0 case8 0
0 0 0 0 1 0 1 0 1 0 0 0 case9 0 0 0 0 0 1 0 1 0 1 0 0 0 case10 0 0 0 0 0 1
0 0 1 1 0 0 0 case11 1 0 0 1 0 1 1 1 0 1 0 0 0 case12 0 0 0 1 1 0 1 1 0 1
0 0 0 .....
So, my questions are the following: Is the Jaccard index a good strategy
for my kind of data? Is binary distance used in pvclust is theoretically
more correct? Is there any alternative to pvclust for testing the
signifi...