Displaying 20 results from an estimated 600 matches similar to: "Plot SpatialLinesDataFrame with xlim & ylim"
2007 Oct 31
1
Lattice: par.ylab.text alpha ?
Hi all,
I've got R for windows 2.3.1
I'm trying to modify my lattice histograms.
The following does reset the y-label to blue, but I cannot turn off the label (alpha=0), nor shift label position (I'm assuming that is what lineheight is for). Is 'lineheight' the equivalent of 'line' in mtext?
Am I erring somehow?
Thanks!
2009 Oct 08
2
lattice: passing multiple lty values to the key/legend
hi all,
It's not clear to me how (or if) I can pass multiple values for lty to a key in xyplot?
I've tried: lines=list(lty=1:3), to no avail.
Do I need to use something other than auto.key?
(Deepayan, if you're out there, I have your book and must admit the answer isn't jumping out at me.)
thanks in advance!
Michael Folkes
example code:
#____________________________
2011 Mar 04
4
Floating points and floor() ?
Perhaps somebody could clarify for me if the following is a floating
point matter or otherwise, and how am I to correct for it?
> floor(100*.1)
[1] 10
> 100*(1.0-.9)
[1] 10
> floor(100*(1-0.9))
[1] 9
Thanks!
Michael
_______________________________________________________
Michael Folkes
Salmon Stock Assessment
Canadian Dept. of Fisheries & Oceans
Pacific Biological Station
2011 Sep 24
2
maptools::sunriset() daylight savings to stardard time change
Hello all,
After beating my head against the wall for a few hours, I give up.
I have two problems.
1. If I use seq() to generate a POSIXct series that crosses a daylight savings to stardard time change I get two values for the first day of change. The time change is Nov 6,2011. The value for Nov 7 turns into 23:00 on Nov 6, thus two values for Nov 6. (see below)
So I put a time value (noon)
2011 Aug 17
3
Convert week value to date
Hello all,
I'm hoping to convert a decimal value for week of the year back to a date object.
Eg:
strptime(paste(2010,1:52,sep=" "),format="%Y %W")
I expected (hoped?) this would give me the date for Monday of each week. Instead, it's giving me 52 values of today's date.
Where am I erring?
Thanks
Michael
_______________________________________________________
2011 Apr 04
2
RODBC excel - need to preserve (or extract) numeric column names
I'm using RODBC to read an excel file (not mine!). But I'm struggling to find a way to preserve the column names that have a numeric value. sqlFetch() drops the value and calls them f1, f2, f3,... (ie field number). this is a different approach from read.csv, which will append "V" prior to the numeric column name. sqlFetch isn't so helpful.
Is there a way to get the
2013 Sep 09
1
Hmisc binconf function value interpretation during narrow confidence intervals
Hello all,
I've been using binconf (package Hmisc) at a range of alpha values and
noticed that using the 'Wilson' method when alpha is larger (i.e. narrow
CI), results in the upper value being smaller than the lower value. The
'exact' and 'asymptotic' methods give results in the realm I'd expect.
But the help file suggests:
"Following Agresti and Coull, the
2008 Nov 04
1
contour plot, failing to interpolate through all data
I'm having trouble making contour lines for this attached, sparse
dataset (low data:NA ratio!). Is it the high number of NA's, or funny
layout of the densities, or something else that's causing this? This is
a subsample of the dataset, and I get the same problem when using the
full data. The only reason I get any contours is because I'm forcing
specific levels. If no levels are
2012 Mar 13
1
Amount of memory occupied by data type
Hello all,
I was under the (false?) assumption that an object that is class
logical, would take up less memory than an object with class integer.
Below am I correctly showing this is not the case?
This was an attempt to reduce memory usage. I'm dealing with two large
arrays (could be integers). Their contents are the exact same, but one
has NA's in random locations. I thought instead
2009 Oct 08
1
problem understanding factor levels for use lattice panel order
Hello all,
In order to get the desired order of panels within lattice I realized I needed to define my factor levels.
I now see how to properly do it (attached code), but:
1. I don't understand why I have to use factor() on a variable that is already a factor, and why levels() alone doesn't work to readjust the level order.
2. I just noticed that if I do use levels(xx$v1), it's
2011 Sep 26
0
as.POSIXct and time zones
Hello all,
I'm struggling with POSIXt objects. I've read the refman, the Rnews from 2001 and hopefully all the pertinent help pages.
I'm running windows xp.
It appears my time zone variable isn't set, which hopefully is fine for this exercise.
> Sys.getenv("TZ")
TZ
""
help(as.POSIXct) states:
"Dates without times are treated as being at midnight
2011 Oct 20
0
Apply approx() to an array and eventually a list of arrays
Hello all,
I'm struggling to grasp how I might use lapply() instead of looping to
run approx() on a list consisting of multiple arrays - each of equal
dimension.
But simpler than that, I haven't been able to successfully apply
approx() to an array, unless I loop through the third dimension and
extract the matrix. See example code below...
Any suggestions will be gratefully received.
Thanks
2011 Jan 27
1
binomial dist: obtaining probability of success on each trial
I'm trying to fathom how to answer two example problems (3.3.2 & 3.3.3) in:
Krishnamoorthy. 2006. "handbook of statistical distributions with applications"
The first requires calculating single trial probability of success for a binomial distribution when we know:
trial size=20, successes k=4, P(x<=k)=0.7
Appreciably all the binomial functions are requiring "prob",
2010 Apr 16
0
generating a SpatialLinesDataFrame (rgdal)
Could somebody give me a pointer on how to generate a SpatialLinesDataFrame
from a dataframe, that contains lat,long coordinates as separate variables.
At the moment the data looks like this:
lat long
[1] 53.xxxx 1.xxxx
where as the SpatialLinesDataFrame consists of
Coordinates
[1] (53.xxx, 1.xxx)
This is probably a trival issue, but I'm a relatively new user and
2020 Oct 20
1
sp:gIntersection warning message about projection
Hi,
I am using in my workflow gIntersection from sp package. Part of my
relevant sessionInfo is:
R version 4.0.3 (2020-10-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 17763)
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] CircStats_0.2-6 boot_1.3-25 MASS_7.3-53 stringr_1.4.0
2008 Oct 23
0
R CMD Rd2dvi (PR#13200)
Hello,
I can build packages with R-2.8.0 but I cannot run the code:
R CMD Rd2dvi --pdf --no-clean <pkg_name>
=20
Error message:
.: Can't open C:/Apps/R/R280/share/sh/dcf.sh: No such file or directory
The system cannot find the path specified.
=20
The above code works fine in R-2.7.2.
=20
Comparing the bash script Rd2dvi.sh between R-2.7.2 and R-2.8.0 makes me
think that the script is
2010 Feb 06
1
Why does smoothScatter clip when xlim and ylim increased?
Hi:
Is there a way to get smoothScatter to not clip when I increase the xlim and
ylim parameters?
Consider the following example:
set.seed(17)
x1<-rnorm(100)
x2<-rnorm(100)
smoothScatter(x1,x2)
#Now if I increase xlim and ylim notice that the plot seems to be clipped at
the former xlim, and ylim boundaries:
smoothScatter(x1,x2, xlim=c(-5,5), ylim=c(-5,5))
Thanks.
Jen
sessionInfo()
R
1999 Nov 15
1
xlim, ylim problem in barplot (PR#325)
Hi, all.
The lower bound in a barplot (or the left bound if you're making a
horizontal barplot) is -0.01 no matter what. This causes problems if
you're making a barplot of small values (say, < .001), as most of the plot
is taken up with blank space beneath the axis, and the bars are squeezed
in at the top. The fix seems to be simple: replace lines
41: xlim <- range(-0.01,
2003 Aug 25
1
setting xlim and ylim with asp=1
In plot(), when using option asp=1 the xlim and ylim have no effect because
they are changed
changed in order to fill the whole plot region. Is there a way to
automatically set
xlim and ylim when asp has been set to 1?
For example:
#This is a box of the plot ranges I want:
boxxy=rbind(c(-1,2),c(-1,-1),c(1,-1),c(1,2),c(-1,2))
#Without asp=1 I get what I want (i.e. I can't see the box because it
2007 Sep 20
1
ggplot and xlim/ylim
Hello everyone,
I am (happily) using ggplot2 for all my plotting now and I wondered
is there is an easy way to specify xlim and ylim somewhere when using
the ggplot syntax, as opposed to the qplot syntax. Eg.
qplot(data=mtcars,y=wt, x=qsec,xlim=c(0,30))
<->
ggplot(mtcars, aes(y=wt, x=qsec)) + geom_point() + ???
Indeed the ggplot syntax is in general more flexible and powerful and