[R] dates in 0.99 and 1.0 windows

[Troels Ring]

Dear friends. I'm in windows version R1.0.0. The code below produced a very 
beautiful and efficient graph in R Version 0.99.0 Patched (February 9, 
2000) but in the newest, the x-axis is unreadable with dates written 
unformatted. I tried to set the numbers using par(xaxp) or xaxs but to no 
avail. Since it was OK just in the last version I guess there might perhaps 
be something wrong somewhere or should I change the code ?

Thank you for the interesting and efficient program !!!!


month   day     year  dosis  vanco
12      31      1999    1       3.8
1       3       2000    1       2.4
1       7       2000    1       3.4
1       12      2000    2       7.1
1       14      2000    2       5.3
1       17      2000    2       5.7
1       19      2000    3       7.7
1       21      2000    3       8.3
1       24      2000    4       8.7
1       26      2000    4       11.1
1       31      2000    4       12.3
2       7       2000    4.5     12.0
2       14      2000    4.5     14.9
2       18      2000    4.5     23.0
2       25      2000    3       20.1
2       28      2000    2       11.3
3	1	2000	2	13.7
3	8	2000	3	12.8
3	10	2000	3	7.4
3	13	2000	3	9.1
3	15	2000	3	12.2
3	17	2000	3	13.8


data <- read.table("vanco1.dat",h=T)
attach(data)
library(date)
dates <- mdy.date(month,day,year)
plot(dates,vanco,pch=c(19),xlab='',ylab="[Vancomycin]",
main="serum Vanco versus weekly dose")
abline(h=10,lty=2) #lower acceptable concentration
dm <- c(1,1,1,1,2,2,3)
dd <- c(7,17,21,31,23,25,3)
dy <- rep(2000,7)
limits <- mdy.date(dm,dd,dy)
abline(v=limits,lty=8)
#d <- locator(8)
x <- c(14611.37, 14620.95, 14627.94, 14634.44, 14650.85, 14663.85, 
14667.58,14680.15)
mtext(c("1","2","3","4","4.5","3","2","3"),3,at=x)
Troels

look here:
http://www.wired.com/wired/archive/8.04/joy.html

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._