[R] help plotting multiple ts
Mark Myatt
mark at myatt.demon.co.uk
Fri Sep 21 14:25:44 CEST 2001
All,
My first time with the ts objects and functions (and low-level plot
functions) and I need a little help. I have some food security data
(proportion of HHs with stocks until the end of a given month) and want
to plot that. Here is what I have:
WheatI <- c(0.00, 0.00, 0.97, 0.97, 0.87, 0.74, 0.64, 0.51,
0.28, 0.26, 0.18, 0.00, 0.00, 0.00, 0.00, 0.00)
WheatR <- c(0.00, 0.00, 0.79, 0.51, 0.38, 0.13, 0.00, 0.00,
0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00)
BarleyI <- c(0.00, 0.00, 0.41, 0.31, 0.31, 0.21, 0.05, 0.03,
0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00)
BarleyR <- c(0.00, 0.00, 0.33, 0.18, 0.13, 0.10, 0.03, 0.03,
0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00)
Potatoes <- c(0.00, 0.00, 0.00, 0.00, 0.00, 0.62, 0.59, 0.59,
0.59, 0.51, 0.51, 0.15, 0.15, 0.13, 0.05, 0.03)
Vegetables <- c(0.00, 0.00, 0.16, 0.16, 0.16, 0.21, 0.19, 0.19,
0.19, 0.16, 0.14, 0.06, 0.05, 0.05, 0.04, 0.01)
Fodder <- c(0.00, 0.09, 0.16, 0.19, 0.17, 0.18, 0.15, 0.13,
0.12, 0.09, 0.06, 0.01, 0.01, 0.01, 0.00, 0.00)
df <- cbind(WheatI, WheatR, BarleyI, BarleyR, Potatoes,
Vegetables, Fodder)
x <- ts(df, start = c(2001, 4), frequency = 12)
plot(x, ylim = c(0,1))
I have a few questions:
1. How do I get year and month labels on the x-axis (more
generally I am having trouble setting the number of ticks to the
number of periods). At present I get base 10 rather than base 12
labels.
2. How do I get them to plot in seven horizontal panes one above
the other (i.e. a single column of plot)?
3. How can I change the number of ticks and take out the first
and last y-axix tick labels.
4. is there a simple way of changing the y-axis labels So that
(e.g.) WheatI becomes (irrigated Wheat)?
I have tried RTFM-input but have confused myself.
Running:
platform i386-pc-mingw32
arch x86
os Win32
system x86, Win32
status
major 1
minor 3.0
year 2001
month 06
day 22
language R
Thanks,
Mark
--
Mark Myatt
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