Displaying 20 results from an estimated 1000 matches similar to: "functionality of "update" in SAS"
2006 Nov 08
2
combining dataframes with different numbers of columns
Dear list members,
I have to combine dataframes together. However they contain different
numbers of variables. It is possible that all the variables in the
dataframe with fewer variables are contained in the dataframe with
more variables, though it is not always the case.
There are key variables identifying observations. These could be used
in a merge statement, although this won't
2005 Jan 06
6
"labels" attached to variable names
Hi,
Can we attach a more descriptive "label" (I may use the wrong
terminology, which would explain why I found nothing on the FAQ) to
variable names, and later have an easy way to switch to these labels in
plots? I fear this is not possible and one must enter this by hand as
ylab and xlab when making plots.
Thanks in advance,
Denis Chabot
2003 May 19
2
upData levels in Hmisc
Dear listserve members, especially Prof. Harrell:
I am trying to create a factor variable that has fewer levels than the
original.
I have a factor:
>rosa$risk1
[1] 2 2 5 1 ...
[1799] 3 3 1 3 1 6 3 3 1 5 3 5 3 3 3 0 3 3 3 1 1 3
Levels: 0 1 2 3 4 5 6 8
But when I do this:
rosa2 <- upData(rosa,
2008 Jul 09
1
Need basic PPPoE startup help
I need basic PPPoE startup help.
adsl-start DID bring up my PPPoE link (ppp0) to my ISP over eth0 via the
DSL modem/bridge. My IPv4 CIDR block is routing and Shorewall is doing
the firewalling.
But shorewall has to be started after ppp0 is up and working. For now
this means running shorewall restart (or start?). Shorewall 4.2 will
have a way to restart shorewall without recompiling, I
2005 Jan 19
2
recoding large number of categories (select in SAS)
Hi,
I have data on stomach contents. Possible prey species are in the
hundreds, so a list of prey codes has been in used in many labs doing
this kind of work.
When comes time to do analyses on these data one often wants to regroup
prey in broader categories, especially for rare prey.
In SAS you can nest a large number of "if-else", or do this more
cleanly with "select"
2005 Sep 26
4
p-level in packages mgcv and gam
Hi,
I am fairly new to GAM and started using package mgcv. I like the
fact that optimal smoothing is automatically used (i.e. df are not
determined a priori but calculated by the gam procedure).
But the mgcv manual warns that p-level for the smooth can be
underestimated when df are estimated by the model. Most of the time
my p-levels are so small that even doubling them would not result
2005 Feb 04
5
2 small problems: integer division and the nature of NA
Hi,
I'm wondering why
48 %/% 2 gives 24
but
4.8 %/% 0.2 gives 23...
I'm not trying to round up here, but to find out how many times
something fits into something else, and the answer should have been the
same for both examples, no?
On a different topic, I like the behavior of NAs better in R than in
SAS (at least they are not considered the smallest value for a
variable), but at the
2009 Mar 10
4
puzzled by math on date-time objects
Hi,
I don't understand the following. When I create a small artificial set
of date information in class POSIXct, I can calculate the mean and the
median:
a = as.POSIXct(Sys.time())
a = a + 60*0:10; a
[1] "2009-03-10 11:30:16 EDT" "2009-03-10 11:31:16 EDT" "2009-03-10
11:32:16 EDT"
[4] "2009-03-10 11:33:16 EDT" "2009-03-10 11:34:16
2008 May 30
1
Question about adding text to xYplot(Hmisc)
Hello,
I have been trying to make a graph that have error bars and text at
specific position.
I used the following code from the help file of xYplot(Hmisc) as an
example except I add a myPanel function, which is just supposed to add
letters from the alphabet at the position aligned at y = 3.
It constantly gives me error:
"Error using packet 1 argument "subscripts" is
2007 Mar 18
2
italics letter in roman string
Hi,
As part of the legend to a plot, I need to have the "n" in italics
because it is a requirement of the journal I aim to publish in:
"This study, n = 3293"
Presently I have:
legend(20, 105, "This study, n = 3293", pch=1, col=rgb(0,0,0,0.5),
pt.cex=0.3, cex=0.8, bty="n")
I suppose I could leave a blank in place of the "n",
2006 Feb 08
1
plotting lines that break if data break
Hi,
Sometimes data series (not necessarily time series) suffer breaks
where data were expected, but not collected. Often the regular
"lines" command to add such data to a plot is what I want, but other
times I'd like the line to break where the data series is
interrupted, instead of the line jumping to the next point in the
series uninterrupted. Usually my data file
2006 Oct 26
2
distance between legend title and legend box
Hi,
I've looked at the parameters available for the legend function and
cannot find a way to change the distance between the top of the box
surrounding a legend and the legend's title. I have a math expression
that raises the height of my title.
If you don't mind the non-sensical title I give to the legend for
this plot (Figure 3.20 in R Graphics):
with(iris,
2006 Feb 05
1
how to extract predicted values from a quantreg fit?
Hi,
I have used package quantreg to estimate a non-linear fit to the
lowest part of my data points. It works great, by the way.
But I'd like to extract the predicted values. The help for
predict.qss1 indicates this:
predict.qss1(object, newdata, ...)
and states that newdata is a data frame describing the observations
at which prediction is to be made.
I used the same technique I used
2007 May 22
5
Reducing the size of pdf graphics files produced with R
Hi,
Without trying to print 1000000 points (see <http://
finzi.psych.upenn.edu/R/Rhelp02a/archive/42105.html>), I often print
maps for which I do not want to loose too much of coastline detail,
and/or plots with 1000-5000 points (yes, some are on top of each
other, but using transparency (i.e. rgb colors with alpha
information) this actually comes through as useful information.
2006 Sep 13
1
reshaping a dataset
Hi,
I'm trying to move to R the last few data handling routines I was
performing in SAS.
I'm working on stomach content data. In the simplified example I
provide below, there are variables describing the origin of each prey
item (nbpc is a ship number, each ship may have been used on
different trips, each trip has stations, and individual fish (tagno)
can be caught at each
2007 Apr 19
1
Error with strptime
Dear All,
I am trying to convert to POSIXct after pasting a date and a time in
character format with strptime.
It is probably obvious but I don't understand why I get an error message
after
bsamp$spltime<-strptime(test,format="%d-%B-%y %H:%M")
whereas I can get what I want if I do it in 2 steps and rbinding ?
Thanks and best regards, Jean-Louis
This is the R console output
2010 Jun 18
1
Latex problem in Hmisc (3.8-1) and Mac Os X with R 2.11.1
Dear all,
I did post this more or less identical mail in a follow up to another
question I posted, but under another heading. I try again, but now
under the correct header.
upon running this code (from the Hmisc library-latex function) I
believe the call to summary.formula is allright and produces wonderful
tables, but the latex command results in a correct formatted table but
where all the
2008 Jan 31
2
dates in French format
Hello R users,
I have to import a file with one column containing dates written in
French short format, such as:
7-d?c-07
11-d?c-07
14-d?c-07
18-d?c-07
21-d?c-07
24-d?c-07
26-d?c-07
28-d?c-07
31-d?c-07
2-janv-08
4-janv-08
7-janv-08
9-janv-08
11-janv-08
14-janv-08
16-janv-08
18-janv-08
There are other columns for other (numeric) variables in the
2016 Nov 03
0
Massive Update to Hmisc package
Hmisc 4.0-0 is now on CRAN. The package has undergone a massive update.
The most user-visable changes are;
- support for Rmarkdown html notebooks
- advanced html tables using the htmlTable package and summaryM function;
can copy and paste into word processors
- support for plotly interactive graphics, e.g.
options(grType='plotly')
plot(describe(mydata))
- new function
2016 Nov 03
0
Massive Update to Hmisc package
Hmisc 4.0-0 is now on CRAN. The package has undergone a massive update.
The most user-visable changes are;
- support for Rmarkdown html notebooks
- advanced html tables using the htmlTable package and summaryM function;
can copy and paste into word processors
- support for plotly interactive graphics, e.g.
options(grType='plotly')
plot(describe(mydata))
- new function