Hello, Xianming,
I have changed your (particular) data structure: use matrices because you
have only numeric scores and effects, use NA instead of -1 as missing
value (as usual), don't use columns for ids or row/column names (except
for the easy of reading the data structures), increase your s
Hi
Not sure about elegancy/efficiency.
library(reshape2)
dat3 <- melt(dat2)
dat3
mid variablevalue
1 m10 -19.5482
2 m20 -0.5120
3 m30 -0.4920
4 m11 0.0070
5 m21 3.2410
6 m31 -2.2560
7 m12 1.2230
8 m22 -4.490
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