Dear list,
I'm working with a large data set, where I grouped several species in one
group (guild). Then I reshaped my data as shown below. Now, I just want to
have "Rep" only as 1 or 0.
I'm not being able to change the values of rep>=1 to 1... tried many things
and I'm not being successful!
> melting=melt(occ.data,id.var=c("guild", "Site", "Rep", "Año"),
measure.var="Pres")
> y=cast(melting, Site ~ Rep ~ guild ~ Año)
Aggregation requires fun.aggregate: length used as default
> y[1:10,,"gui4a",1:2]
, , Año = 2003
Rep
Site 1 2 3 4 5
1021 0 0 0 0 0
1022 0 0 0 0 0
1023 0 0 0 0 0
1024 0 0 0 0 0
1025 0 0 0 0 0
1026 0 0 0 0 0
* 1051 3 1 2 3 5*
* 1052 4 3 5 2 3*
* 1053 4 3 3 3 2*
* 1054 1 2 1 3 0*
, , Año = 2004
Rep
Site 1 2 3 4 5
1021 2 5 5 5 4
1022 6 3 2 2 2
1023 4 1 1 2 2
1024 0 1 2 2 0
1025 0 1 0 1 0
1026 2 1 0 0 1
1051 2 1 3 1 2
1052 2 4 1 1 2
1053 2 4 2 2 1
1054 4 3 3 2 3
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