To whom it may help,
I am new to R.
I have been tring to have a lattice plot in two strip levels: 4 stations in 2
years.
I type in:
histogram(~Raw.no10$Width|Raw.no10$Station*Raw.no10$Year, data=Raw.no10,
layout=c(4,2),nin=30,xlab="Prosomal Width (mm)",
strip=strip.custom(bg='white'),ylab="Frequencies",tick=-1,col='grey',as.table=TRUE)
The second level, i.e. Year, showed as "Raw.no10$Year" in the each of the
lattice plot, instead of its respective year, such as "2002" and "2014".
I changed to the following programme language, therefore:
histogram(~Raw.no10$Width|Raw.no10$Station*Raw.no10$Year, data=Raw.no10,
layout=c(4,2),nin=30,xlab="Prosomal Width (mm)",
strip=strip.custom(bg='white',var.name=c("2002","2014")),ylab="Frequencies",tick=-1,col='grey',as.table=TRUE)
in order to specify the variable names of the strip.
Instead of showing "Raw.no10$Year", each of the lattice plot states "2014"!
They should have 4 plots showing "2002" and another 4 showing "2014".
Could any one help indicating what has gone wrong?
I am really helpless and frustrated now. T_T
Regards,
Christine
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