Displaying 20 results from an estimated 5000 matches similar to: "two monitors"
2011 Oct 12
3
large numbers
Hi,
When I import an excel "CSV" file, large numbers such as " 43988014.3" is
imported as "43988014", leaving out the decimal ".4". How to import keeping
the fraction?
Thanks.
Chetty
--
Professor of Family Medicine
Boston University
Tel: 617-414-6221, Fax:617-414-3345
emails: chettyvk@gmail.com,vchetty@bu.edu
[[alternative HTML version deleted]]
2012 Aug 25
2
date
Hi,
I have dates as follows:
1/4/2006 0:00:00 AM
It is a factor at present.
How do I find out the day of the week from this? How do I convert to Julian
date format?
Thanks.
Chetty
--
Professor of Family Medicine
Boston University
Tel: 617-414-6221, Fax:617-414-3345
emails: chettyvk@gmail.com,vchetty@bu.edu
[[alternative HTML version deleted]]
2010 Mar 22
2
using reorder in "dotplot"
Hi ,
Name
rate
HEALTHALLIANCE HOSPITALS, INC -1.06211747
MOUNT AUBURN HOSPITAL 0.50960291
STURDY MEMORIAL HOSPITAL 2.64233232
LAWRENCE GENERAL HOSPITAL 2.15628558
CAMBRIDGE HEALTH ALLIANCE 1.23623144
I would like use
2012 Apr 21
2
Date object
HI,
I have to work with data objects. I have trouble. I would like to convert
date to a integer of Julian dates omitting hours, minutes etc. I tried as.
Date and also as.POSIXlt, ct etc.
Please help me to compute the following difference. I get an "NA" for
output.
1/14/2006 0:00:00 AM -1/9/2006 0:00:00 AM
Thanks.
Chetty
--
Professor of Family Medicine
Boston University
Tel:
2009 Feb 12
3
Adding abline in Lattice graph
Hi,I would like add a horizontal line at 126 (col=red) and a vertical line
at 6.5 ( col= blue) in each panel .How should I use the panel.abline
function in the following code I am using:
------------------
library(lattice)
with(reg.dat.5,coplot(lbxglu~lbxgh|eth,panel=panel.smooth,xlab="ABC",
ylab="FBG"))
----------------------------------------
Thanks a lot.
Professor of
2009 Sep 25
2
summarize-plyr package
Hi,I am using the amazing package 'plyr". I have one problem. I would
appreciate help to fix the following error: Thanks.
______________________________
> library(plyr)
> data(baseball)
> summarise(baseball,
+ duration = max(year) - min(year),
+ nteams = length(unique(team)))
Error: could not find function "summarise"
> ddply(baseball, "id", summarise,
+
2011 Oct 12
2
reading large numbers
Hi,
This happens when I read in large numbers;
------------------------------------
> as.numeric(4398801.3)
[1] 4398801
> as.numeric(439880.3)
[1] 439880.3
------------------------------------
Please help to read in numbers with more than 8 characters!
Thanks.
Chetty
--
Professor of Family Medicine
Boston University
Tel: 617-414-6221, Fax:617-414-3345
emails:
2010 Mar 23
2
using reorder in dotplot
Hi,
Please help to correct my error in the following. I want to plot the values
of 'x" in increasing order.
-----------------------------------
library(lattice)
Name<-c("A","B","C")
x<-c(15,20,10)
test<-data.frame(Name,x)
dotplot(Name~x,test)
dotplot(reorder(Name,x)~x,test)
"reorder" has no effect!
Thanks.
Chetty
------------------------
2009 Feb 25
2
reshape from wide to long
Hi,I would like to reshape the following "wide" data set to "long" form. I
would appreciate help with the correct code for "reshape". I tried a few
unsuccessfully.
Thanks.
Chetty
__________________________________________________
dat.1
Grp X0 X3 X6 X12 X25
X501 C 0.5326517 0.6930942 0.9403883 1.157571
2009 Mar 02
1
xy-plot alb font size
I would appreciate any help for the following question. How to increase the
font size of labels for the x and y axes in the following code?
---------------------------------
xyplot(lbxglu~lbxgh|eth,reg.dat.5, panel = p, col = 1:2,
par.strip.text = list(cex = 1.25,col="brown"),
xlab="A1C",ylab="Fasting Plasma Glucose", main="FPG")
p <- function(..., col)
2009 Mar 04
1
dotplot
Hi,I would like to fill the dots in this graph. I would appreciate help to
do that if possible. If fill is not possible, can I make it bright? I do NOT
want to increase the size.
__________________
dotplot(hu.event~fitted.adj.cat,data=risk.benefit.cast,groups=treat,
auto.key=list(space="right"))
------------------------------------------
Thanks.
Chetty
--
Professor of Family Medicine
2009 Feb 13
2
loading mgcv package
Hi ,When I try to load the 'mgcv" package, often, but not always, get this
error message. What am I doing wrong?
__________________
This is mgcv 1.4-1.1
Error in runif(1) :
.Random.seed is not an integer vector but of type 'list'
Error : .onAttach failed in 'attachNamespace'
Error: package/namespace load failed for 'mgcv'
-----------------------------------------
2009 Feb 01
1
cluster function to use with GLM
Hi,In SPlus, I use the function 'cluster' with GLM to adjust for correlated
errors within a cluster ( e.g. cluster(ID)) as a covariate. Is there a
similar function in R to use with GLM ? I am new to R. Thanks.
V.K. Chetty
--
Professor of Family Medicine
Boston University
Tel: 617-414-6221, Fax:617-414-3345
emails: chettyvk@gmail.com,vchetty@bu.edu
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2009 Jul 03
1
exporting interactive rggobi plots
Hi , I have created a parallel coordinate plot using rrgobi. I like to make
a powerpoint slide. I am not able to copy and paste. Is there any way to do
this? Thanks for any help.
Chetty
--
Professor of Family Medicine
Boston University
Tel: 617-414-6221, Fax:617-414-3345
emails: chettyvk@gmail.com,vchetty@bu.edu
[[alternative HTML version deleted]]
2009 Oct 13
1
Lattice barchart-reordered
Hi,Can I use "reorder" function with barchart as in dotchart? Here are some
codes which do not work for me. Thanks
Chetty
___________________________
a1c.cast$bmi.cat.reordered[a1c.cast$eth!="Other"]
<-with(a1c.cast[a1c.cast$eth!="Other",],reorder(bmi.cat.ordered[a1c.cast$eth!="Other"],
BP.FN.RATE,median ))
barchart(BP.FN.RATE~
2009 Jan 29
12
How do I get my IT department to "bless" R?
I currently use R at work "under the radar", but there's a chance I
could loose that access. I'd like to get our company to feel
comfortable with open source and R in particular. Does anyone have
any experience with their company's IT department and management that
they would be willing to share? How does one get an all Microsoft
shop on board with allowing users to user
2009 Oct 11
0
barchart
Hi,In Lattice graphs, can I use "reorder" function in a barchart as in the
case of "dotchart"? Or it can be used only with dotcharts?
Thanks
Chetty
Professor of Family Medicine
Boston University
Tel: 617-414-6221, Fax:617-414-3345
emails: chettyvk@gmail.com,vchetty@bu.edu
[[alternative HTML version deleted]]
2009 Apr 01
0
回复: R-help Digest, Vol 73, Issue 32
Dear sir, How to do bilinear time series in R?Is there any functions or packages? thank you!
-----Sincerely yours
Kuangnan Fang 方匡南 敬上
department of statistics ,Economics school,Xia men University.
Fujian Province (361005) China
Mobile Phone:15860721915 SKYPE: ruiqwy
MSN Messenger: ruiqwy@hotmail.com
QQ:39863401
--- 09年3月31日,周二, r-help-request@r-project.org
2006 Dec 15
3
Problem Joining an XP CPU to Samba Domain
Hello,
I have an XP (SP2) CPU that has just been reloaded with the OS (hard drive
was reformatted).
The NIC works and I can access the Internet with no problem.
When I join the CPU to the domain (there are many other CPUs already on this
domain), it joins.
After the mandatory reboot, if I try to log in using a domain account, I get
an error saying the username and password are incorrect. I
2009 Jan 23
5
Stat textbook recommendations?
Hello,
I'm looking for a textbook that can explain some of the math behind
the intro-to-intermediate stuff like ANOVA, multiple regression, non-
parametric tests, etc.
A little background: I took an intro stats course last year and
would like to further my education. Being as that was the highest
(and only) stats class the local community college offers, it looks
like I'm on