Displaying 20 results from an estimated 800 matches similar to: "Lattice: par.ylab.text alpha ?"
2007 Jul 10
2
Plot SpatialLinesDataFrame with xlim & ylim
I'm running windows xp, R 2.3.1 with maptools 0.6-6, I guess.
When plotting from a large SpatialLinesDataFrame and using xlim & ylim to reduce the area, the plot axes automatically have the same scale size, even if xlim and ylim ranges differ.
E.g.:
tmp <- readShapeLines(filepath)
plot(tmp,xlim=c(-126,-119),ylim=c(50,51))
The y-axis range is actually 47-54, same range as the x-axis.
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 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)
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
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 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
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",
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
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
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
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
2009 Aug 07
1
lattice dotplot: line height for multi-line labels
Dear R-users,
I am looking for suggestions on how to control the line-height for
multi-line labels in lattice dotplot.
In particular, in the dotplot produced by
library(lattice)
aa <- c('A'=10,'B\nb'=20,'C'=30)
dotplot(aa)
I would like to control the vertical separation between 'B' and 'b' in
the second label on the y-axis.
For multi-line axes
2011 Nov 17
1
Introducing \n's so that par.strip.text can produce multiline strips in lattice
Dear all,
I have the following data, which has \\n in place of \n. I introduced \n's
in the csv file so that I could use it in barchart in lattice. When I did
that and read it into R using read.csv, it read it as \\n. My question is
how do I introduce "\n" in the middle of a long string of quoted text so
that lattice can make multiline strips. Hitting Enter which is supposed to
2016 Apr 09
1
Run script R
hi all ,?
i have an problem in script R . But when I execute the script R I face this error . can you help me please ???error:-----------------------------------------
Error in FUN(X[[i]], ...) :?? Theme element 'text' has NULL property: margin, debugIn addition: Warning messages:1: Removed 361 rows containing non-finite values (stat_smooth).?2: Removed 361 rows containing missing values
2009 Mar 10
1
Centering multi-line strip text in lattice
I'm having trouble centering multi-line strip text in lattice. As the
code below demonstrates bounding box of the text is centered within
the strip, but the first line isn't centered in relation to the longer
second line. The "adj" argument to par.strip.text doesn't seem to do
much. Suggestions?
a=data.frame(
x=rep(1:10,2)
,y=rep(1:10,2)
,z=rep(c('First Line\nLonger
2001 Sep 21
2
new versions of grid and lattice
Hi
There are new versions of the grid and lattice packages on CRAN:
grid 0.2 and lattice 0.3-0
These packages are still _under development_ (they are in
CRAN/src/contrib/Devel)
There have been some bug fixes and, especially in lattice, there are lots of
new features.
Descriptions of the changes are included below.
If you have any grid code, it may break under the new version because of a
2001 Sep 21
2
new versions of grid and lattice
Hi
There are new versions of the grid and lattice packages on CRAN:
grid 0.2 and lattice 0.3-0
These packages are still _under development_ (they are in
CRAN/src/contrib/Devel)
There have been some bug fixes and, especially in lattice, there are lots of
new features.
Descriptions of the changes are included below.
If you have any grid code, it may break under the new version because of a