[R] help required to melt a data frame

[Wu Gong]

Hope it helps this time:)

### Package reshape, function melt and cast
### Read table
dummy <- read.table(textConnection("State Months Bedroom
1    xxx    Jan       1
2    xxx    Jan       2
3    xxx    Jan       1
4    yyy    Jan       1
5    yyy    Jan       2
6    yyy    Jan       1
7    zzz    Jan       3
8    zzz    Jan       1
9    zzz    Jan       2
10   xxx    Feb       3
11   xxx    Feb       4
12   xxx    Feb       2
13   yyy    Feb       1
14   yyy    Feb       2
15   yyy    Feb       1
16   zzz    Feb       2
17   zzz    Feb       3
18   zzz    Feb       3 "))

## Melt
melt.dummy <- melt.data.frame(dummy,id.vars=c("State","Bedroom"),
measure.vars="Months")

## Cast
cast(melt.dummy, State + Bedroom ~ value,length)

-----
A R learner.
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