Dear Jorge, Dennis, Sarah and R-experts.
Thank for helping me. As you mentioned it is difficult apply in lattice in
this situation.
Unless, there is a possibility, I would try to use lattice. The major reason
toward this is- my ultimate solution might be better of in lattice as I have
a classificatory variable to make similar graph for each caterogory in the
lattice graph. Lattice cleates nice stacked xyplots.
p ~ xvar | chr # require plots by the factor variable "chr"
# with a classificatory variable
name <- c(paste ("M", 1:1000, sep = ""))
xvar <- seq(1, 10000, 10)
chr <- c(rep(1,200),rep(2,200), rep(3,200), rep(4,200), rep(5,200))
set.seed(134)
p <- rnorm(1000, 0.15,0.05)
dataf <- data.frame(name,xvar, chr, p)
dataf$chr <- as.factor(dataf$chr)
# lattice plot: As far as I can go now !
require(lattice)
xyplot(pval ~ xvar1|chr, dataf)
Best Regards
Umesh R
_____
From: Jorge Ivan Velez [mailto:jorgeivanve...@gmail.com]
Sent: Sunday, March 06, 2011 12:22 AM
To: Umesh Rosyara
Cc: R mailing list
Subject: Re: [R] displaying label meeting condition (i.e. significant, i..e
p value less than 005) in plot function
Hi Umesh,
You can try something along the lines of:
d <- dataf[dataf$p < 0.05, ] # p < 0.05
with(d, plot(xvar, p, col = 'white'))
with(d, text(xvar, p, name, cex = .7))
HTH,
Jorge
On Sat, Mar 5, 2011 at 12:29 PM, Umesh Rosyara <> wrote:
Dear R users,
Here is my problem:
# example data
name <- c(paste ("M", 1:1000, sep = ""))
xvar <- seq(1, 10000, 10)
set.seed(134)
p <- rnorm(1000, 0.15,0.05)
dataf <- data.frame(name,xvar, p)
plot (dataf$xvar,p)
abline(h=0.05)
# I can know which observation number is less than 0.05
which (dataf$p < 0.05)
[1] 12 20 80 269 272 338 366 368 397 403 432 453 494 543 592 691 723 789
811
[20] 854 891 931 955
I want to display (label) corresponding names on the plot above:
means that 12th observation M12, 20th observation M20 and so on. Please note
that I have names not in numerical sequience (rather different names), just
provided for this example to create dataset easily.
Thanks in advance
Umesh R
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