[R] Survival questions

Hi - I am using the survfit() function to produce Kaplan-Meier survival curves for several different groups. survfit (Surv() ~ cohort, data=d) Everything works fine, but I'd like to do something different. I have a 12 month survival curve (base) and I also have two survival curves based on some

Re: [R] Ordering of facet_wrap() panels

nique(f)) >[1] c b a c b a >Levels: c b a ## not your desired order > >Again, please consult the docs and perhaps a tutorial or two as >necessary. > >-- Bert > > > >On Wed, Aug 15, 2018 at 8:22 AM, Stats Student > >wrote: > >> Many thanks, Bert. >&g

[R] Ordering of facet_wrap() panels

Hi, I am generating multiple charts with facet_wrap() and what what I see, R/ggplot sorts the panels by the facet variable. So adding an index to the facet variable (1 - bucket, 2 - bucket, etc) does solve the sorting issue but it's ugly. I also read this post which, if I understand correctly,

[R] Changing PDF orientation midstream

Hi, I'm wondering whether it is possible to change the orientation of the PDF in the middle of the document. In other words, pages 1,2,3 - portrait, pages 4,5 - landscape, etc. This is how I call it - pdf (file, paper="US") or USr for landscape Thanks! _

[R] scale_y_continuous with sec.axis

Hi, I'm using scale_y_continuous with sec.axis and it's doing what I need but I don't understand how it picks which of the two series becomes the secondary. Does anyone have any insight into this? Thanks! __ R-help@r-project.org mailing list -- To U

Re: [R] Adding lines to the page

; > > > Bert Gunter > > "The trouble with having an open mind is that people keep coming along and > sticking things into it." > -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) > > On Wed, Jun 27, 2018 at 3:56 PM, Stats Student <

Re: [R] Adding lines to the page

Rnw files) is very powerful, but there are many >other tools as well (e.g. bookdown) depending on your preferences. > >[1] https://cran.r-project.org/web/views/ReproducibleResearch.html > >On June 27, 2018 1:53:58 PM PDT, Stats Student > wrote: >>Hi, I'm looking for a way

[R] Adding lines to the page

Hi, I'm looking for a way to add lines to a report. To be clear, I don't want to add lines to any specific plot, but instead to add line(s) to the page itself - e.g. add a line to the footer area, above the actual footer text. Any thoughts on how to do this? Many thanks. __

Re: [R] Storing tableGrobs in a list

mpt someone to dig a little. > >On June 14, 2018 8:07:19 AM HST, Stats Student > wrote: >>Thanks for the replies. Wasn't aware that Gmail on Android sent HTML >by >>default, apologies. >> >>Storing the tableGrob-s in a list worked but for some reason >>

Re: [R] Storing tableGrobs in a list

gt;L1<-vector( "list", N ) >for (i in seq.int( N )) { > L1[[i]] <-tableGrob( ... ) >} > >PS Post using your email program "plain text" mode... HTML gets >stripped anyway and that often leads to partial corruption of your >message. Read the Posting Guide. &

[R] Storing tableGrobs in a list

Hi, I'm trying to generate tableGrobs in a loop, store them in a list so I can use it in a call to gtable_combine(). L1<-list() for (i in seq( ... )) { L1[i] <-tableGrob( ... ) } gtable_combine(L1, along=1) On the assignment inside the loop, I get "number of items to replace is not a multiple

Re: [R] puzzling Date math result

On Tue, 17 Apr 2012 10:44:40 -0400, Denis Chabot wrote: >> Hi, >> >> I cannot make a reproducible example easily for my problem, so I'll >> describe it as best as I can. YOU KIND OF NEED ONE... >>> a=test1$période[21] >> >>> b=test2$date[22] >> a x >> in-left: 5px; width: 100%;">b >> >

Re: [R] Linear Logistic Regression - Understanding the output (and possibly the test to use!)

elieve helps. I think you need to consult a statistician or someone who has taken the time to read that "statistical mumbo jumbo" you don't want to learn. This mailing list is not set up to be a tutorial site. I have access to stats advice, but I don't (a) want to turn up to them

[R] Linear Logistic Regression - Understanding the output (and possibly the test to use!)

a data? Please don't shout!! happy to be pointed to a reference but would prefer one in common english not some stats mumbo jumbo! Calum __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posti

Re: [R] Question on WLS (gls vs lm)

Indeed, they should give the same results, and hence I was worried to see that the results were not that same. Suffice it to look at standard errors and p-values: they do differ, and the differences are not really that small. Thanks, Stats Wolf On Thu, Jun 24, 2010 at 2:39 PM, Joris Meys

Re: [R] Question on WLS (gls vs lm)

which WLS is just a special case"? Best, Stats Wolf On Thu, Jun 24, 2010 at 12:49 PM, Joris Meys wrote: > Isn't that exactly what you would expect when using a _generalized_ > least squares compared to a normal least squares? GLS is not the same > as WLS. > > http://www.a

[R] Question on WLS (gls vs lm)

ou please explain why? Are these different types of weights? Many thanks in advance, Stats Wolf __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide

[R] polr for ordered multinomial response without additional variables

s between the subsequent levels can be, I think, modeled with polr: fit<-polr(result~1) summary(fit) Could you please explain me what do the coefficients from the above summary mean? And how I could use the t-test (eg, what are degrees of freedom, for example? What is the exact hypothesis be

[R] A model-building strategy in mixed-effects modelling

eed when choosing the optimum model for a situation that calls for mixed effects? Of course, the example above is overly simplistic, yet such situations can occur -- from a complex model with a couple of random terms one can finally get to a simple fixed-effects model. Please comment. T

[R] Reporting discriminat analysis

. However, I cannot find these cut-off values. I use the function lda of the MASS package, although I have also looked at some other procedures for discriminant analysis, and equally failed. Thanks, Stats Wolf __ R-help@r-project.org mailing list https

[R] Multinomial logistic regression in an ANOVA-like framework

am do look at means when interpreting the results) I would like to make some kind of multiple comparisons, if it is at all possible. Any suggestions if I am doing anything wrong and if not, what could I do to get these multiple comparisons? Thank you, Stats

[R] glht problem

I am struggling with a simple repeated-measure model: fit<-lme(trait~year * A, random = ~1|subj/year) A being a factor with three levels. I got have the following results for anova(fit): numDF denDF F-value p-value (Intercept) 1 126 2471.4720 <.0001 year 2060

Re: [R] Graphical output format

ight try adding the paper option to your pdf command because it > eliminates that huge margin on top of the output > > pj > > On Wed, May 13, 2009 at 11:47 PM, Stats Wolf wrote: >> Dear colleagues, >> >> Saving a plot with pdf gives a very nice result: >> >> p

[R] Graphical output format

Dear colleagues, Saving a plot with pdf gives a very nice result: pdf("myplot.pdf") par(font=1,family='serif') plot(pressure) dev.off() Doing the very same with other formats (png, jpeg, tiff) gives far worse results. Is there anything to do to make a plot in some other format than pdf look like

[R] Longitudinal study with three treatments

Hi, I am comparing three treatments. The data come from a longitudinal study, and for each treatment I have only 1 case, on which the observations across 20 years are made. My main aim is to compare the three treatments, but the effect of time is of interest as well. Which of the many R functions