Displaying 20 results from an estimated 1000 matches similar to: "Producing a matrix of values"
2009 Apr 01
1
Adjusting font size in a lattice graph
Hi all
I have created a lattice graph but the text appears too big. Just
wondering if there was a way I could change the font size.
tp1.nDai=xyplot(value ~ yr | Name, data = nDai,type = 'o')
update(tp1.nDai, aspect = c(0.8), layout = c(4, 4))
I would appreciate your help.
Kind regards
andy
Andrew McFadden MVS BVSc
Incursion Investigator
Investigation & Diagnostic Centres -
2010 Feb 14
1
Adding a regression line to an xyplot
Hi R users
> I am trying to add a regression line to a graph for "c" for factor 2
> only. Any suggestions?
>
library(lattice)
a=(1:10)
b=c(1:5,16:20)
c=as.factor(c(rep(1,5),rep(2,5)))
d=data.frame(a,b,c)
xyplot(a~b, pch=c(6,8),data = tavg, groups=d$c,
reg.line=lm, smooth=FALSE, type=c("p","g"),xlab="a",ylab="b")
> I would
2009 Apr 14
2
Subset function: selecting variables within a factor
Hi all
I know this must be an easy one so sorry for the trouble. I would like
to select a list of variables within a factor
The following example is given in help for subset:
subset(airquality, Temp > 80 select = c(Ozone, Temp))
So how do I select all temperatures of 90 and 80 ie Temp = c(80,90)
I would appreciate your help.
Kind regards
andy
Andrew McFadden MVS BVSc
Incursion
2011 May 17
1
Dealing with null values Aggregate function
Hi R users
I trying to some aggregate statistics on a very large dataset. The null
values are causing a problem. I would like to calculate aggregate values
for groups. I am just no sure how to deal with the "" I would ideally
like them to ignored ie if there is only 1 value over several columns
than that value would be the summary statistic.
I have put the following example together to
2008 May 11
1
Finding unmatched data between two dataframe using several factors
Hi R users
I am trying to find unmatched data from two dataframes. I would like to
find unmatched data based on several factors. For the following data:
dat1 <- data.frame(x = paste("A", 1:6, sep=""),
y = c("andy","bob","ciaran","dan", "eion",
"fred"))
dat1
dat2
2008 Apr 16
0
Instantaneous hazard of an event i.e. death
Hi all
I am trying to calculate the instantaneous hazard (rather than
cumulative hazard) for an event "bird death".
Some sample data is as follows:
year<-c(rep(2003,10),rep(2004,10))
time<-c(5,10,5,15,20,10,15,15,25,25,5,15,15,5,25,10,25,15,35,25)
event<-c(1,0,1,1,0,1,1,0,1,0,1,0,0,1,0,0,0,0,1,0)
Ideally I would like to know if the hazard is greater at specific time
periods
2011 May 03
2
Overlapping x axes using Lattice
Hi R users
I apologise in advance for this question as I suspect it is simple and
perhaps others have had this problem.
I am struggling to sort out how to fix the x axes so that the labels
don't overlap.
I have put the following example together to show my problem.
library(lattice)
titre <- as.factor(rep(c(10999,20999,30999,40999,50999,60999,
2008 May 13
1
Legend in scatterplot and adding regression lines
Hi R users
The scatterplot (used package R-Cmdr ) obtained has the legend off the
plot in the upper left
I would like to decide where to put the legend - is that option still
available and how do I do it?
code:
Dataset <- read.table("J:/Pigmatingsb.txt", header=TRUE, sep="\t",
na.strings="NA", dec=".", strip.white=TRUE)
2008 Jun 06
3
R loop
I all
I am just trying to get the idea of a loop if statement for another
purpose. I was going to label a new variable based on date ie first week
1, second week 2 etc. My code in bold is wrong but seems logical to me,
could someone help.
x <-
rep(c(2660156,2663703,2658165,2659303,2661531,2660914),c(2,2,2,2,1,1))
y <-
rep(c(6476767,6475013,6475487,6479659,6477004,6476388),c(2,2,2,2,1,1))
2008 May 06
3
Spatial join between two datasets using x and y co-ordinates
Hi R users
I am trying to create a spatial join between two datasets.
The first data set is large and contains descriptive data including x
and y co-ordinates.
The second dataset is small and has been selected spatially. The only
data contained within the second dataset is the x and y coordinates only
i.e. no descriptive data.
The aim of a join made between the two datasets is to select
2009 Mar 17
3
Combining columns from two dataframes
I all
I am trying to combine columns from two dataframes to make a completely
new dataframe consisting of one column of dates (ie a combination of
dates from the two dataframes).
>From the following dataframes
a b
1 2008-07-27 1
2 2008-10-01 2
3 2008-08-15 3
4 2008-08-14 4
5 2008-08-14 5
6 2008-09-20 6
c d
1 2008-07-27 1
2 2008-10-01 2
I would like to get:
z
2008 Mar 06
2
R code for selecting places spatially and by time
Hi all
The code of trying to write relates to selecting properties (given by x
and y co-ordinates) spatially (distance "X" from "infected" properties
identified by date) over a certain time period.
i.e. what properties are within 3 km from properties infected on
"2008-01-01" over the last 14 days.
Is any one able to give me some clues on how to write code to solve
2009 Apr 01
4
Recode of text variables
Hi all
I am trying to do a simple recode which I am stumbling on. I figure
there must be any easy way but haven't come across it.
Given data of A","B","C","D","E","A" it would be nice to recode this
into say three categories ie A and B becomes "Treat1", C becomes "Treat
2" and E becomes "Treat 3".
I tried
2011 May 23
0
SNA query
Hi R Users
I am working with the very useful SNA package (v.2.2) in R and have a
query I hope you may be able to help out with:
I have been using gplot commands to plot an SNA graph. Here's the code
and output:
library(sna); library(network); library(RODBC)
setwd("c:\\temp")
x = read.csv(file = "testforr.csv")
Total.Sold=c(1,3,6,1,3,6,1,3,6,6,9)
src=c(1:10,1)
2011 Nov 21
1
Lattice graph help
Hi all
I hope you might help me with some aspects of producing a graph in lattice. There are three things I have struggling with and that is: 1. to separate the horizontal box rows from each other; 2. to change the colour of the horizontal and vertical strips to white; and 3. to place the axes labels on the left y axes and on the bottom x axes. I would really appreciate some help. I have put the
2011 Nov 22
0
Lattice graph strips and axes
Hi all
I was wondering if it is possible to get rid of the horizontal strips and produce each barchart with a left y axes and lower x axes only. Also can you specify an exact size of graph ie 88mm wide with a font size of 'x'.
library(lattice)
library(latticeExtra)
n=as.factor(c(1:5,1:5))
2003 Sep 17
2
CART analysis
Greetings,
Does anyone know of an R code for classification and regression tree
analysis (CART)?
Thank you
Ron
Ron Thornton BVSc, PhD, MACVSc (pathology, epidemiology)
Programme Co-ordinator, Active Surveillance
Animal Biosecurity
MAF Biosecurity Authority
P O Box 2526
Wellington, New Zealand
phone: 64-4-4744156
027 223 7582
fax: 64-4-474-4133
e-mail: ron.thornton at maf.govt.nz
2009 Mar 14
2
SEM model testing with identical goodness of fits
HI,
I am testing several models about three latent constructs that
measure risk attitudes.
Two models with different structure obtained identical of fit measures
from chisqure to BIC.
Model1 assumes three factors are correlated with each other and model
two assumes a higher order factor exist and three factors related to
this higher factor instead of to each other.
Model1:
model.one
2010 Sep 15
2
Get File Names in Folder, Read Files, Update, and Write
Dear All,
Could you please recommend how I can do this?
I have several text files in one folder. Let's name them A0801.RSK,
A0802.RSK, ....
I would like R to
1) Know all file names in this folder
2) Update value in one column of these files
3) Write results in another text file with _xval in the file names
Below is R code for read, update, and write one file
2013 Feb 01
0
[ANNOUNCE] xf86-video-intel 2.21.0
Release 2.21.0 (2013-02-01)
===========================
A few new features:
* Enable render acceleration for Haswell GT1/GT2.
* Enable multi-threaded rasterisation of trapezoids and fallback composition
* Utilile a new kernel interface (v3.9) for processing relocations
along with a few older features from the 2.20.x series:
* PRIME support for hotplug GPUs and hybrid systems
* Support