search for: exemplifying

I?m trying to find datasets that will give me residuals, after applying the lm function, with no normality, non linearity, and heteroscedacity so I can try to exemplify those cases in the linear regression model. Can you give any advice on what datasets would be appropiate? I can?t use the ones in the alr3 package because those have already been seen in class. Thank you very much :-) natorro

Dear all, I have a matrix with positive and negative values. >From this I would like to produce 2 matrices: 1st - retaining positives and putting NA in other positions 2nd - retaining negatives and putting NA in other positions and then apply rowMeans for both. I am trying to use the function ifelse in the exemplified form: ifelse(A>0,A,NA) but by putting A as a 2nd parameter it

Greetings, Folks. I'd appreciate being shown the way out of this one! I've been round the documentation in ever-drecreasing circles, and along other paths, without stumbling on the answer. The background to the question can be exemplified by the example (no graphics window open to start with): set.seed(54321) X0 <- rnorm(50) ; Y0 <- rnorm(50)

Dear All, I seem entirely unable to solve what should be a very simple problem. I have imported a SPSS dataset into R using spss.get from Frank Harrell's Hmisc library. The variables are imported classed as 'labelled': missing values are coded as either the SPSS missing value code, 8 or 88. All are imported correctly; 8 and 88 being identified as true numbers in the

I need to input a txt, or xls, file from a client to R, using RServe. >From what I've been reading, the best way to do this, is using the 'createReference' method, from REngine package. But I couldn't find any documents exemplifying it's use. I got to upload a file from java? And then? How do i refeer the file to this method? Best Regards, J. Daniel -- View this message in context: http://www.nabble.com/RServe---How-to-use-%27createReference%27-method--tp24792277p24792277.html Sent from the R help mailing list archive...

Dear List, Let's say I have a list whose components are 2 matrices (as exemplified in the "mylist" object below). I'd like to create a list with components being 4 matrices based on an logical index vector. is there a way to simplify what I'm doing to obtain the results in "mylist2"? I'd like something that would work on an arbitrary number of elements in

Dear R users, Let's say I have a list with components being 'm' matrices (as exemplified in the "mylist" object below). Now, I'd like to subset this list based on an index vector, which will partition each matrix 'm' in 2 sub-matrices. My questions are: 1. Is there an elegant way to have the results shown in mylist2 for an arbitrary number of matrices in mylist?

Hi all, Using the exponential distribution to exemplify: The dexp function is the PDF (1) and pexp is the CDF (2), that is obtained integrating the PDF. How can I get the qexp and the rexp? Considering that I have the PDF, how this two are mathematically related to the PDF? (1) ke^{-kx} (2) 1-e^{kx} Thanks in advance.

I'm looking into the help page on some functions of the {spatstat} packages and they're exemplified by a dataset called "nztrees". But it does not exist, and it's not listed on R Datasets Package (http://stat.ethz.ch.sixxs.org/R-manual/R-devel/library/datasets/html/00Index.html). Why is this happening.... -- View this message in context:

Hi, I am currently attempting to write a small program for a randomization test (based on rank/combination) for matched pairs. If you will please allow me to introduce you to some background information regarding the test prior to my question at hand, or you may skip down to the bold portion for my issue. There are two sample sizes; the data, as I am sure you guessed, is matched into pairs and

Dear R-users, For the past few days, I have been trying to find the reason why some of my plots were showing symbols of different sizes, while I thought I was using the same .cex arguments everywhere. The problem is exemplified by the following example code where the xyplot and grid.points functions are used. The scaling factor is set to 0.84 in both the functions settings, but one can see

Hi, Great to see Thunderbird support SPECIAL-USE now. I would like to hear the list about the intended use of SPECIAL-USE. I get the impression from several earlier mails here that the intention is for the server to globally decide what the folder-name of a specific SPECIAL-USE folder is for all users. That's the way the documentation exemplifies it and what I get from posts like this:

Dear all, When installing the usual packages that I use, after installing R 3.0.1, I noticed that the installation of some packages that query R about its configuration did not succeed. The problem is exemplified by: berwin at bossiaea:~$ R-3.0.1 CMD config CC /opt/R/R-3.0.1/lib/R/bin/config: 222: .: Can't open /opt/R/R-3.0.1/lib/R/etc/Renviron Prior to R 3.0.1 such commands worked fine:

Dear All -- I am trying to use within a little table producing code an anova comparison of two gls fitted objects, contained in a list of such object, obtained using nlme function gls. The anova procedure fails to locate the second of the objects. The following code, borrowed from the help page of anova.gls, exemplifies: --------------- start example code --------------- library(nlme) ##

Does R, or will R, be integrating the changes to the Chambers/Lucent S language under their version 5.0? If not already, then when? John Thaden Little Rock, Arkansas, USA -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe"

Greetings, I've been struggling for some time with a problem concerning a big database that i have to deal with. I'll try to exemplify my problem since the database is really big. Suppose I have the following data: AA = c(4,4,4,2,2,6,8,9) A1 = c(3,3,5,5,5,7,11,12) A2 = c(3,3,5,5,5,7,11,12) A = cbind(A, A1, A2) BB = c(2,2,4,6,6) B1 =c(5,11,7,13,NA) B2 =c(3,12,11,NA,NA) B3

...ta as desired from Question 1, can someone help me figure out how to average the lists, by threshold, similarly? Question 3. If my cross validation data happen to have a list entry whose length = 2, ROCR errors out. Please see the second part of my example. Any suggestions? #reproducible examples exemplifying my questions ##part one## library(ROCR) data(ROCR.xval) # set up data so it looks more like my real data sampSize <- c(4, 55, 20, 75, 350, 250, 6, 120, 200, 25) testSet <- ROCR.xval # do the extraction for (i in 1:length(ROCR.xval[[1]])){ y <- sample(c(1:350),sampSize[i]) testSet$pre...

Hi all, I have a function which makes use of missing() to determine which arguments are provided in the call - basically, there are two sets of arguments that map to different strategies the function uses to fulfill its task. After conversion to an S4 generic I've run into the problem that if a method uses extra arguments that are not in the signature of the generic, usage of missing()

...2230.html I have two Samba4 AC DC, in both located in my office, dual-stacked, working like a charm. Now, I need to deploy a third DC, located within Amazon EC2, which does NOT have IPv6. But, samba-tool fails to join. How can I workaround this, without enabling a tunneled IPv6 within my EC2 ? Exemplifying: 1- ubuntu-ad-1 - Master - ok - office LAN1 - IPv4 / IPv6 2- ubuntu-ad-2 - Slave - ok - office LAN2 - IPv4 / IPv6 3- ubuntu-ad-3 - Slave can't join - AWS - IPv4-Only --- root at ubuntu-ad-3:~# kinit administrator Password for administrator at CENTRAL.DOMAIN.COM.BR: Warning: Your password wil...

...le(file("R_data/hs+sfnet.T.060505.tbl4", encoding="latin1"),header=TRUE) Warning messages: 1: invalid input found on input connection 'R_data/hs+sfnet.T.060505.tbl4' 2: incomplete final line found by readTableHeader on 'R_data/hs+sfnet.T.060505.tbl4' A sample exemplifying such characters as variable labels is below (for which the behavior of R in Mac is the same as for the larger file referred to above):. ajatella mietti? pohtia 1 FALSE FALSE TRUE 2 FALSE FALSE FALSE 3 FALSE TRUE FALSE 4 FALSE TRUE FALSE 5 TRUE FALSE FAL...