in ?stepAIC in V&R's MASS package, which is a default part of R and is linked
in the See Also section of ?step.
To your second question, you can't. It uses AIC and this has also been
discussed frequently on this list. You might look at Frank's fastbw() function
in his 'rm
lts to 1.5.
The See Also on that help page points you to ?boxplot.stats "which does the
computation" and has additional detail. Both pages list references.
If all else fails, since R is open source, you can always look at the source
code for both functions to follow exactly
ply(testdata, 1, function(x)all(x == "A")),
> ,drop = FALSE])
user system elapsed
0.454 0.047 0.503
> system.time(Sub2 <- testdata[rowSums(testdata == "A") == ncol(testdata), ,
> drop = FALSE])
user system elapsed
0.089 0.001 0.090
>
"pkgType")
[1] "mac.binary.leopard"
which is referenced in ?install.packages. It is looking for a binary version of
your package, rather than a source package.
You need to use:
install.packages("/Users/hoffmann/R/cwhmisc_4.0.tar.gz",
repos = NULL,
ecifically, 'bty', for options there.
Or, you can always use ?segments, knowing that par("usr") gives you the
coordinates of the plot region corners...
Regards,
Marc Schwartz
On Nov 12, 2012, at 1:04 PM, Rui Barradas wrote:
> Hello,
>
> If you want to completely r
-fit logistic curve for this data in R?
>
> - J
You might want to look at John Fox' appendix on non-linear models for some
additional insights:
http://socserv.mcmaster.ca/jfox/Books/Companion/appendix/Appendix-Nonlinear-Regression.pdf
Regards,
Marc Schwartz
_
On Nov 9, 2012, at 11:23 AM, Bert Gunter wrote:
> Marc et. al:
>
> On Fri, Nov 9, 2012 at 9:05 AM, Marc Schwartz wrote:
>> On Nov 9, 2012, at 10:50 AM, Eiko Fried wrote:
>>
>>> A colleague wrote the following syntax for me:
>>>
>>> D =
t so that you don't have to
post-process it.
See ?read.csv for more info.
Once that is done, R's default behavior is to remove observations with any
missing data (eg. NA values) when using modeling functions. Or you can
pre-process using:
rovide Nagelkerke's pseudo R^2 as part of the model output.
However, be sure you understand what it means in the context of logistic
regression. It is not the same as the R^2 in OLS regression.
Regards,
Marc Schwartz
__
R-help@r-project.org mailin
smart enough to differentiate between an object
named 'table' and the built-in function table(), I would avoid it, because
there may be times when you will run into a problem and be scratching your head
as to the source of the error.
Vec <- c(12.34567, "--", 10, 12.
t barplot() returns the bar midpoints, which then allow you
to position vertical lines for each bar center.
A conceptual note, which is that this format can be ok for
proportions/percentages, but you will recommendations against using this format
to display continuous d
and the same font will then be
> used throughout. There is too much text to use PSFrag.
>
> Thanks for your help!
> Karen
Take a look at ?ps.options, which is referenced in ?postscript in the Details
and See Also sections there.
Regards,
Marc Schwartz
On Nov 8, 2012, at 9:33 AM, Prof Brian Ripley wrote:
> On 08/11/2012 15:28, Marc Schwartz wrote:
>>
>> On Nov 8, 2012, at 12:57 AM, Prof Brian Ripley wrote:
>>
>>> On 07/11/2012 23:12, Marc Schwartz wrote:
>>>> On Nov 7, 2012, at 4:58 PM, r wrot
ge:
http://cran.r-project.org/web/packages/sas7bdat/index.html
Regards,
Marc Schwartz
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
a
On Nov 8, 2012, at 12:57 AM, Prof Brian Ripley wrote:
> On 07/11/2012 23:12, Marc Schwartz wrote:
>> On Nov 7, 2012, at 4:58 PM, r wrote:
>>
>>> Dear list, I have some .xls files that I need to read into R. I am
>>> able to do so using read.xls in the gdat
en do tilde expansion, etc. when
relative file paths are passed rather than absolute paths are used.
A workaround for now, would be to wrap your filename in that function in your
code, so that when you use relative paths, the appropriate expansion is used
and passed to the gdata functio
'poly(x, 3)').
A general approach would be:
all.vars(formula(MODEL))
where the response variable would typically be the first element in the
returned vector. So, if you just want the IV's you could use:
all.vars(formula(MODEL))[-1]
An example
ne those things, then post to R-Devel, but please do
subscribe first:
https://stat.ethz.ch/mailman/listinfo/r-devel
as it will save the R-Devel list moderators from having to manually approve
each of your posts, therefore making your posting more expedient.
Thanks and regards,
Marc Schwartz
___
nment in which Sweave
is operating are changed. Perhaps not all, since some things still seem to work.
I have never used setwd() within a .Rnw file, not because of prior experience,
but because I have never needed to.
Just use the full path to whatever external files you need, rather than
c
; R version 2.15.1.
> If 1.2.3 is the current latest version of X, then update.packages() will
> _not_ try to update it, but, apparently, at least for some packages, I
> do need to rebuild them against the new R version 2.15.2.
>
> Thanks.
Take note of the 'checkBuilt
"temp16", "temp17", "temp17", "temp17", "temp18", "temp18",
>"temp18", "temp18", "temp18", "temp19", "temp2", "temp2",
>"temp2", "temp20", &q
On Oct 29, 2012, at 2:04 PM, Duncan Murdoch wrote:
> On 29/10/2012 2:54 PM, Marc Schwartz wrote:
>> On Oct 29, 2012, at 1:28 PM, Praveen Surendran
>> wrote:
>>
>> > Hi,
>> >
>> >
>> >
>> > I have a file in .sas7bdat for
; unknown host X64_7PRO".
>
> Could someone tell me what this error means?
>
> Thank you,
>
> Praveen.
More than likely, a similar problem as in this recent thread, but for 64 bit,
rather than 32 bit:
https://stat.ethz.c
e query using ?paste
Query <- paste("SELECT tblDataFieldRawSiteVisit.*",
"FROM tblDataFieldRawSiteVisit",
"WHERE (((tblDataFieldRawSiteVisit.dataForm)=\"Oyster Transition
Plan",
"Site Mapping Detail\"));&q
.adjust, which provides a generic framework for multiple
pairwise comparison adjustment methods.
The most conservative, but not always the best approach, would of course be
Bonferroni.
Regards,
Marc Schwartz
__
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https://stat
a set (to make sure that you have
factors and not character vectors) and to get a sense for the distribution of
your IVs.
Regards,
Marc Schwartz
__
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https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the postin
ribute, you can unclass() it and then
coerce to a data.frame:
> as.data.frame(unclass(RES))
lengths values
1 5 10
2 4 9
3 3 8
4 2 7
5 1 6
> str(as.data.frame(unclass(RES)))
'data.frame': 5 obs. of 2 variables:
$ len
turn this behaviour off?
>
> best,
> Markku Karhunen
> Uni. Helsinki
You can save yourself a lot of time if you visit the R FAQ as your first action
item when such questions come up. In this case:
http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-do-my-matrices-lose-dimensions_003f
nt to evaluate some of the Large
Memory options on the HPC task view:
http://cran.r-project.org/web/views/HighPerformanceComputing.html
or of course install more RAM.
Regards,
Marc Schwartz
__
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https://stat.ethz.ch/m
result. It already has NOTE entries in the
CRAN checks for problems already found.
If you have not, you might want to look at the CRAN task view here:
http://cran.r-project.org/web/views/Pharmacokinetics.html
which might provide some possible alternatives.
Regards,
Marc Schwartz
__
at 8:14 AM, Frank Harrell wrote:
> Hi Marc,
>
> It would be interesting to compare with tikz for ease of use.
>
> As an aside I've been wishing that someone would write an R function for
> creating clinical trial disposition charts using tikz or pstricks ...
>
>
rious other online resources for using PSTricks.
Keep in mind that since this is PostScript based, you need to use a latex +
dvips + ps2pdf sequence, rather than just pdflatex.
Regards,
Marc Schwartz
__
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https://s
do
>> that? SAS seems to be able to customized stepwise function with p-value
>> or cooks'd.
>
> You might take some time to ponder the possibility that the fact that it's
> not easy in R might be useful information in its own right.
I nominat
in.
Regards,
Marc Schwartz
On Oct 4, 2012, at 10:27 AM, R. Michael Weylandt
wrote:
> R is used by many many folks, and most of us don't have the domain
> knowledge to make heads or tails of what you're mentioning here.
> You'll need to greatly clarify and perhaps ask on
On Oct 3, 2012, at 9:56 AM, Spencer Graves
wrote:
> On 10/3/2012 7:26 AM, Marc Schwartz wrote:
>> On Oct 3, 2012, at 4:49 AM, Narendra wrote:
>>
>>> Hi,
>>>
>>> I have developed one application using ggmap package.It is based on google
>>> m
and distributing.
In the latter case, whether you plan to charge for the resultant product or
make it available for free, is irrelevant.
Regards,
Marc Schwartz
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PLEASE do r
;> someone who uses Windows!
>
> I use Windows and the answer is no, the four backslashes don't make sense,
> because like Frans said, c:\\ becomes c:\
> (There is no such thing as c: ---> c:\\).
>
> Rui Barradas
Ahoy Mateys,
Not to mention, creating file paths on W
p/12/02/4201.html
that has various solutions and towards the end has a post with some timings.
Regards,
Marc Schwartz
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PLEASE do read the posting guide http://www.R-project.org/
, which will return an array by default:
NewObject <- replicate(10, DoSomethingHere...)
Or...just create a function that takes requisite arguments and runs the for()
loop within the function body and returns the object you actually need. That
way, any variables cre
g the use of the package which can be
accessed by using:
vignette("RODBC")
Regards,
Marc Schwartz
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PLEASE do read the posting guide http://www.R-project.org/posting-
rse, the use of pdftotext itself is predicated upon the source PDF not
being a scanned image of a text page, in which case you would need an OCR based
application.
Regards,
Marc Schwartz
On Aug 27, 2012, at 1:48 PM, Christofer Bogaso
wrote:
> Thanks Berend for your reply. However I was expectin
ting a copy of:
R for SAS and SPSS Users
Robert Muenchen
http://www.amazon.com/SAS-SPSS-Users-Statistics-Computing/dp/0387094172
Regards,
Marc Schwartz
__
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PLEASE do read the
ow be 0!
> However, I'm getting results like -2.315223e-18
> This is really near to 0 but not very aesthetic.
>
> Can I prevent this? Or is this behaviour desired?
> Thank you very much!
> Burtan
Read this:
http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-doesn_
/wiki/EPEL
Installing R from there is as easy as adding the EPEL to your repo list and
using 'yum install R' as root (eg. via sudo) from the CLI.
Regards,
Marc Schwartz
__
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https://stat.ethz.ch/mailman/li
hunk}
\begin{Sinput}
> plot(1:10)
\end{Sinput}
\end{Schunk}
\includegraphics{caption-001}
\caption{This is the caption 1.41 with an R scalar included}
\end{figure}
\end{document}
In general, if the R code is not very simple (eg. it is multiple lines/func
example above:
\caption[Results for Random Forest Model Using Scoring Data]
{Results for Random Forest Model Using Scoring Data (N = 700)}
Regards,
Marc Schwartz
__
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https://stat.ethz.ch/mailman/listinfo/r-h
specific R e-mail list at:
https://stat.ethz.ch/mailman/listinfo/r-sig-fedora
You should subscribe to and post there with any follow ups or future Fedora
specific R queries.
Regards,
Marc Schwartz
__
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https://stat.e
#How-can-R-for-Mac-OS-X-be-uninstalled_003f
Lastly, for any follow ups, I would recommend that you post to r-sig-mac rather
than r-help, since the former is focused on using R on Macs. More info here:
https://stat.ethz.ch/mailman/listinfo/r-sig-mac
Regards,
Marc Schwartz
__
))
If the levels you do not want are few in number, it may be easier to use:
NewDF <- subset(DF, !Electrode %in% c("Levels", "You", "Don't", "Want"))
Note the use of '!' before Electrode to negate the boolean logic.
Regards,
Marc Schwartz
On Aug 7, 2012, at 3:18 PM, Marc Schwartz wrote:
>
> On Aug 7, 2012, at 3:02 PM, Liviu Andronic wrote:
>
>> On Mon, Aug 6, 2012 at 7:35 PM, Marc Schwartz wrote:
>>> is.letter <- function(x) grepl("[[:alpha:]]", x)
>>> is.number <- functi
On Aug 7, 2012, at 3:02 PM, Liviu Andronic wrote:
> On Mon, Aug 6, 2012 at 7:35 PM, Marc Schwartz wrote:
>> is.letter <- function(x) grepl("[[:alpha:]]", x)
>> is.number <- function(x) grepl("[[:digit:]]", x)
>>
>
> Another follow-up. To t
That's not the same site, as is noted at the bottom of that site's main page.
It does appear that R-Forge is down, albeit the domain is resolving and the
server IP is responding quickly to pings with no packet loss.
Regards,
Marc Schwartz
On Aug 7, 2012, at 5:29 PM, Roy Mendelss
On Aug 6, 2012, at 12:06 PM, Marc Schwartz wrote:
> Perhaps I am missing something, but why use sapply() when grepl() is already
> vectorized?
>
> is.letter <- function(x) grepl("[:alpha:]", x)
> is.number <- function(x) grepl("[:digit:]", x)
Sorry,
#x27;)
x <- rep(x, 1e3)
> str(x)
chr [1:52000] "a2" "b10" "c8" "d3" "e6" "f1" "g5" ...
> system.time(is.letter(x))
user system elapsed
0.011 0.000 0.010
> system.time(is.number(x))
user system elaps
an easy way to avoid the NaN's, something a non-programmer (ie,
> the person I am handing this code off to) would understand?
>
> Thanks,
>
>
> Jen
You could use ?ifelse:
> ifelse(var2 == 0, 0, var1 / var2)
[1] 0.0 13.9 53.79000 0.0 150.0 350.0
It is v
y your model on the full dataset and stick with it. Interact with
subject matter experts on the interpretation of the model.
BTW, this question is really about statistical modeling generally, not really R
specific. Such queries are best posed to general statistical lists/forums such
as Stack Exchange.
Presumably based upon the same logic that Thomas (who you cc'd here) included
in a post earlier today:
https://stat.ethz.ch/pipermail/r-help/2012-July/319508.html
Also, please start a new thread when you post, rather than replying to an
existing thread.
Regards,
Marc Schwartz
Would appreciate any help on these? Thank you.
>
> Ravi
You can use ?tapply, albeit you will get NA's rather than 0's:
> tapply(z, list(x, y), mean, na.rm = TRUE)
10 20 30
1 100 NA NA
2 NA 200 NA
3 NA NA 300
> tapply(z, list(x, y), function(x) sum(!is.na(x)))
10
with
Nonbinary Covariates
F.Y. Hsieh and Philip W. Lavori
Controlled Clinical Trials 21:552–560 (2000
A skillful Google search will find both available online if you don't have
access otherwise.
Regards,
Marc Schwartz
On Jul 17, 2012, at 12:33 PM, Greg Snow wrote:
> One quick (tho
tly, if the above two are not suitable, you might want to review the Machine
Learning Task View, since these analyses seem overlap to an extent with that
domain:
http://cran.us.r-project.org/web/views/MachineLearning.html
Regards,
Marc Schwartz
__
R-
on model. The latter
is not fit using maximum likelihood, hence the Vuong test, which is a
likelihood ratio based test, fails.
If you want a negative binomial model, you should be using glm.nb() in V&R's
MASS package:
require(MASS)
NB1 <- glm.nb(...)
Then you can
.
> Thanks!
> Sergey
I suspect some confusion on your part Sergey. 'boot' is part of the standard R
installation as a "recommended" package.
All you need to do is either:
library(boot)
or
require(boot)
Regards,
Marc Schwartz
d any.
> Thanks,
> Mike
Strangely enough, there is an entire manual on importing and exporting data
to/from R:
http://cran.r-project.org/manuals.html
Several suggestions there for SAS in the relevant manual:
http://cran.r-project.org/doc/manuals/R-data.html#Importing-from-other-statis
ason, you are importing your data via another means into R, then
you can still use ?as.Date to coerce the column to a Date class and use the
above incantation.
See ?subset for additional information on that function.
Regards,
Marc Schwartz
__
R-help@
info/r-sig-db
Be sure to include information about your OS, R version including 32 or 64 bit.
See the R Posting Guide for additional information on what default info to
include in a post.
2. Any chance that you do not have appropriate permission to access the
"ANYTHING"
TRUE TRUE
4 5.6 6.7 FALSE FALSE
Regards,
Marc Schwartz
On Jul 2, 2012, at 7:46 AM, John Kane wrote:
> You are not asking for a Decrete [sic] (descrete) value check but rather if
> the numbers are intergers.
>
> Try this:
>
> # from the ?is.integer he
or incidence rates? I checked epiR and epitools. It seems they
> do not have this function.
>
> Thank you for the help.
You can use ?prop.trend.test or you can also look at the ?independence_test
function with 'teststat = "quad"', which is in the coin
onsider a mixed
effects logistic regression model with a binary response, since you appear to
have a relatively small "event" incidence in your data. The above list will
also be helpful in that setting and you would likely be pointed to the glmer()
function in the lme4 package for that application, which provides for GLMs in a
mixed effects framework.
Regards,
Marc Schwartz
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
l pre-specified model and also that the
original full model itself was not derived from prior variable selection or
univariate pre-screening:
mod1 <- glm(site ~ sex + birth + cohort + sex:birth, data=datasex, family =
binomial)
I would recommend reviewing the likelihood ratio test for th
and has relevant examples using R.
The rumor is that Frank is working on a new edition of his book with a greater
focus on the use of R and is due RSN. Perhaps there will be copies at useR in
Nashville next week? One could hope... :-)
Regards,
Marc Schwartz
_
Hi Erin,
The two places that I typically use for reference are:
http://www.regular-expressions.info/
and
Mastering Regular Expressions
Jeffrey Friedl
http://www.amazon.com/Mastering-Regular-Expressions-Second-Edition/dp/0596002890
Regards,
Marc Schwartz
download, perhaps
we can better trace the source of the problem, or Ed might use ?debug to follow
the code execution in read.table() and see where the relevant flags get
triggered. The latter option would help Ed learn how to use the debugging tools
that R provides to dig more deeply into such issue
sc2 0.16374
yk.2 yk2 0.17320
Regards,
Marc Schwartz
On Jun 1, 2012, at 3:06 PM, Rui Barradas wrote:
> Hello,
>
> Try
>
> score2$subject <- rep(score$subject, 7)
>
> Hope this helps,
>
> Rui Barradas
>
> Em 01-06-2012 20:47, Jason Love escre
On May 27, 2012, at 9:45 AM, Soheila Khodakarim wrote:
> Dear All
>
> Pleade give me an URL that I can download R for cenos linux 64 bit.
R is available from the EPEL for RHEL, CentOS and Scientific Linux:
http://fedoraproject.org/wiki/EPEL
Regards,
Marc
containing the r and rv values in each
row, for each 7 element segment of the original x.
Regards,
Marc Schwartz
On May 25, 2012, at 10:56 AM, Rui Barradas wrote:
> Hello,
>
> Tip: see the difference between the following two.
>
>
> for(i in 1:7)
> cat(
ero exit status
> 16: In install.packages("rms", dependencies = TRUE) :
> installation of package 'sampleSelection' had non-zero exit status
> 17: In install.packages("rms", dependencies = TRUE) :
> installation of package 'AER' had non-zero exit
; i am using linux OS
>
> I have tried by updated r-base-core but it didnt work
>
> regards
> GRR
The latest version of survival on CRAN is 2.36-14.
When you install rms, be sure to use:
install.packages("rms", dependencies = TRUE)
to be sure that pa
to be
in the general realm of very rare events given the distribution of LOCS in your
data.
Regards,
Marc Schwartz
On May 24, 2012, at 2:41 PM, Nathan Svoboda wrote:
> Hi David,
>
> My apologies, I am not sure if this makes a big difference in your assessment
> of the proble
AINS Research Group
> (STAtistics & INformation Systems Group) of the
> Aristotle University of Thessaloniki
> Site: http://stains.csd.auth.gr
> B.Sc Student in Electrical and Mechanical Engineering
> ---
>
you do not intend to make your own source code available, you should be very
clear on what the GPL requires of you before proceeding.
Regards,
Marc Schwartz
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PLEASE do
On May 23, 2012, at 2:52 PM, arun wrote:
> Hi Marc,
>
> Just to point out some difference,
>
>
> x <- 1:20
> y <- x + (x/4 - 2)^3 + rnorm(20, sd=3)
> names(y) <- paste("O",x,sep=".")
>ww <- rep(1,20); ww[13] <- 0
> summary(lmxy <- lm(y ~ x + I(x^2)+I(x^3) + I((x-10)^2),
tilde operator operate on
> the LHS (component 2) and the RHS (component 3).
>
> Peter Ehlers
Just to throw out another solution here, the function ?all.vars is helpful:
LM <- lm(Petal.Length ~ ., data = iris)
> formula(LM)
Petal.Length ~ Sepal.Length + Sepal.Width + Petal.Width + S
ile))
>
> or this:
>
> do.call("WriteXLS", list(c("df1", "df2"), outFile)
Thanks Gabor. Note that since WriteXLS version 2.0 (2010), WriteXLS can accept
a named list and write out each list element data frame to an XLS file. An
example is given in ?W
ames2xls. Each will have installation issues, depending upon the OS and
the useR's skill sets in ensuring the presence of the required foundation. Some
users may have issues in certain environments in installing Perl, Python or
Java due to IT/Security issues, so something to c
picky, an NA value is not the same as blank. That is NA != "". R has
specific behavior in dealing with NA values.
Regards,
Marc Schwartz
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PLEASE do read the
On May 9, 2012, at 11:00 AM, Barry Rowlingson wrote:
>>> Someone said:
>
>>> Once R is accepted, you could ask for an RStudio test if you want.
>
> I had another thought shortly after my initial email. Suppose yes, R
> is accepted. Great. You run R.
>
> Then you think, "Oh, I need ggplot2" (ye
uters,
primarily for internal use, while providing external access as well. Some may
know it by it's former name MILNet and it has a classified private network
counterpart, known as SIPRNet.
As a consequence, the level of security oversight is higher and more
restrictive than what o
eveNRows = FALSE' in the calls
as below. That may help with corrupted data coming back. I have to use the
former with Oracle. That is also referenced in ?odbcConnect with a comment
specific to Sybase.
chan <- odbcDriverConnect(conn, rows_at_time = 1, believeNRows = FALSE)
x <- sqlQue
, but also gave warnings.
> * R completed your command, but gave an incorrect answer.
> * R completed your command but the answer is different from what you
> expect (but is correct according to the documentation)
>
> There are probably others.
Since Greg has kindly raised t
I have not read it yet, but the acknowledgements at the end of the paper note
that:
1. It was supported by an NSF grant.
2. At least two members of R Core are recognized amongst the list of names.
Regards,
Marc Schwartz
On Apr 25, 2012, at 1:07 PM, Thomas Adams wrote:
> Hmmm∑ an 'o
tualtech.com/product_opensourcedatabases.php
They are easy to install and configure and also provide the ODBC Manager app,
which replaces the no longer included Apple ODBC Administrator app.
Also, you should post this query (now follow ups) to R-SIG-DB, as tha
with missing data.
Regards,
Marc Schwartz
On Apr 24, 2012, at 9:14 AM, R. Michael Weylandt wrote:
> Take a look at nobs()
>
> Michael
>
> On Tue, Apr 24, 2012 at 10:05 AM, Eiko Fried wrote:
>> I have a dataset with plenty of variables and lots of missing data. As far
level. Depending upon the nature of the analysis you are conducting and your
underlying hypotheses, treatment contrasts are very commonly used for ordinal
variables as well.
Regards,
Marc Schwartz
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https://s
asses. Similarly, the child
classes may implement specific functionality not apropos to the generic parent
class because more specific information is known about the structure of the
child.
Regards,
Marc
> On 21 Apr 2012, at 08:18 , Marc Schwartz wrote:
>
>> On Apr 21, 2012,
th method dispatch. See ?plot.formula, which is the plot
method called you pass a formula, as opposed to passing a vector as in your
third example.
In this case, ?plot.factor is called when the 'x' part of the formula (RHS) is
a factor. When plot.factor is called, it internally calls ?boxp
A2 B1 C2 0
9 A1 B2 C2 0
10 A2 B2 C2 0
11 A1 B3 C2 0
12 A2 B3 C2 0
13 A1 B1 C3 0
14 A2 B1 C3 0
15 A1 B2 C3 0
16 A2 B2 C3 0
17 A1 B3 C3 0
18 A2 B3 C3 0
19 A1 B1 C4 0
20 A2 B1 C4 0
21 A1 B2 C4 0
22 A2 B2 C4 0
23 A1 B3 C4 0
24 A2 B3 C4
On Apr 18, 2012, at 1:49 PM, David Winsemius wrote:
>
> On Apr 18, 2012, at 2:05 PM, Marc Schwartz wrote:
>
>> On Apr 18, 2012, at 11:58 AM, Ben quant wrote:
>>
>>> Hello,
>>>
>>> I have two date strings, say "1972-06-30" and &quo
.
Thus, encapsulating it in a function:
Qtrs <- function(Start, End)
{
Vec <- as.Date(levels(cut(seq.Date(Start, End, by = "month"),
breaks = "quarter")))
Vec[-1] - 1
}
> Qtrs(as.Date("2007-01-31"), as.Date("20
on that I found was rather than removing TeXLive 2007, leave it in
place, install 2011 from upstream as you have done and modify your $PATH to
point to 2011 so that version is picked up when you need to use TeX, rather
than the 2007 version.
Regards,
Marc Schwartz
___
iasing, which is noted here:
http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-are-there-unwanted-borders
Regards,
Marc Schwartz
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