Thank you Jim. That does give better results. I had
not realised how complicated a question I was asking.
Both yours and Jim Lemon's solutions work very nicely.
I am still messing up the syntax with Gabour's
approach. Thanks to all for the fast and valuable
help.
--- jim holtman <[EMAIL PRO
Thank you. Almost too fancy for the target user but
very nice indeed. For some reason I had not thought
of using ggplot2.
--- hadley wickham <[EMAIL PROTECTED]> wrote:
> Here's a version using reshape and ggplot:
>
> mydata <-
>
read.table("http://ca.geocities.com/jrkrideau/R/heartdata.txt";
Excellent, that looks very nice!
I had not realised that plotrix would do that and I
was definately hesitating to try and figure out how to
do it myself.
Any idea why all I was getting was a single date on
the x-axis when just doing plot?
--- Jim Lemon <[EMAIL PROTECTED]> wrote:
> John Kan
John Kane wrote:
> I clearly spoke too soon.
>
> With the actual data I am not getting sensible x-axis
> units. The program with the actual data below. Graph
> output is here:
> http://ca.geocities.com/jrkrideau/R/hd.png .
>
> I seem to be getting only a single entry for the
> x-axis of "20
Here's a version using reshape and ggplot:
mydata <- read.table("http://ca.geocities.com/jrkrideau/R/heartdata.txt";,
sep="\t", header=FALSE)
mydata[,1] <- as.Date(mydata[,1],"%m/%d/%y")
names(mydata) <- c("dates", "sy","dys","pulse", "weight")
molten <- melt(mydata, m = c("sy", "dys"))
qplot(da
You can get a slightly better X axis by converting your Date variable to chron:
Replace this:
plot(mydata[,1], ...)
with this:
library(chron)
plot(chron(unclass(mydata[,1])), ...)
and ignore the warning.
On Nov 13, 2007 9:08 AM, John Kane <[EMAIL PROTECTED]> wrote:
> I clearly spok
I have had some problems with dates on axis in certain ranges. Here
is a version of axis.POSIXct that I have been using that seems to do a
better job:
my.axis.POSIXct <-
function (side, x, format, inc)
{
.diff <- diff(range(unclass(x), na.rm = TRUE))
if (.diff < 30) {
.by <- "sec
I clearly spoke too soon.
With the actual data I am not getting sensible x-axis
units. The program with the actual data below. Graph
output is here:
http://ca.geocities.com/jrkrideau/R/hd.png .
I seem to be getting only a single entry for the
x-axis of "2007". However dates range from
Firs
Thanks to Gabor and Jim. I am not sure if the first
entry year = 2009 is all the problem I'm getting but
it is certainly seems like the worst of it.
My stupidity: Someone sent me the data set in Excel
and I didn't do the basic data checks on. I _KNEW_ the
data went from 2006 to 2007.
--- Gab
In your examples the first line of your data refers to the
year 2009 and Oct 1st is repeated. Is that really what
you meant?
I can't tell what your problem is from your description
other than the data problems cited but there are lots of
examples of plotting with zoo in the following which may
he
Now your first data point is 9/26/09; is it supposed to be 9/26/06?
On Nov 12, 2007 1:47 PM, John Kane <[EMAIL PROTECTED]> wrote:
> I am completely misunderstanding how to handle dates.
> I want to plot a couple of data series against some
> dates. Simple example 1 below works fine.
> Unfortunate
So what is wrong with the plots? I used your example, and it appears
to plot the data correctly. What were you expecting?
On Nov 12, 2007 1:47 PM, John Kane <[EMAIL PROTECTED]> wrote:
> I am completely misunderstanding how to handle dates.
> I want to plot a couple of data series against some
>
I am completely misunderstanding how to handle dates.
I want to plot a couple of data series against some
dates. Simple example 1 below works fine.
Unfortunately I have multiple observations per day (no
time breakdowns) and observations across years.
(example 2 very simplistic version )
Can any
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