similar to: The code behind the function

Dear R users, Something is strange in summary and IQR. Suppose, I have a data set and I would like to find the Q1, Q2, Q3 and IQR. x<-c(2,4,11,12,13,15,31,31,37,47) > summary(x) Min. 1st Qu. Median Mean 3rd Qu. Max. 2.00 11.25 14.00 20.30 31.00 47.00 > IQR(x) [1] 19.75 However, I test the same data set in SAS "proc univariate", and SAS shows that

R-help, Sorry for this question (I guess it has been addressed before but I could not find it in the archives) but how can I see a function code when the following comes up: > svymean function (x, design, na.rm = FALSE, ...) { .svycheck(design) UseMethod("svymean", design) } <environment: namespace:survey> Thanks in advance

Dear R users: I am looking for the source code for the R function extractAIC. Type the function name doesn't help: > extractAIC function (fit, scale, k = 2, ...) UseMethod("extractAIC") <environment: namespace:stats> And when I search it in the R source code, the best I can find is in (R source root)/library/stats/R/add.R: extractAIC <- function(fit, scale, k = 2,

Dear R Users, I have a question, how does one print an r function like t.test in R (to get the whole function and not just a summary of the environment)? For example if I type the following: > t.test function (x, ...) UseMethod("t.test") <environment: namespace:stats> > print(t.test) function (x, ...) UseMethod("t.test") <environment: namespace:stats> I

Dear R Gurus: I want to look at the code for the t.test function. I did the following: > t.test function (x, ...) UseMethod("t.test") <environment: namespace:stats> > getAnywhere("t.test") A single object matching 't.test' was found It was found in the following places package:stats registered S3 method for t from namespace stats namespace:stats with

Hello Pardon for the elementary question, I did try searching the archives with various terms, but to no avail. I am using R1.9.1 on a windows machine One of the great advantages of R (to me, anyway) is being able to see the code for a function , e.g. by typing sd one sees the code for getting a standard deviation. However, for many functions this only provides info. including UseMethod, eg.

Hi All, I'd like to see the function code behind the barplots2() function in the gplots package, however i come across a bit of a stumbling block of a hidden function, can anyone help? > library(gplots) > methods(barplot2) [1] barplot2.default* Non-visible functions are asterisked > barplot2 function (height, ...) UseMethod("barplot2") <environment:

Dear all, I was trying to see how the function 'confint' is defined. Doing > confint function (object, parm, level = 0.95, ...) UseMethod("confint") <environment: namespace:stats> does not really enlighten me. How can I get to see the implementation (I guess it should be possible according to the general philosophy of the R project)? Thanks in advance S??ren

Hi R users, I google the website and I found that there are three ways to perform repeated measure ANOVA: aov, lme and lmer. http://www.mail-archive.com/r-help at stat.math.ethz.ch/msg58502.html But the questions are which one is good to use and how to do post-hoc test? I use the example that is provided in the above link and I try > tt<-aov(p.pa~group*time+Error(subject/time),data=P.PA)

Dear All, I have loaded package(tseries), but when I run predict.garch(...) R tells me could not find function "predict.garch", however ?predict.garch shows me something. I am confused about this. How can I forecast garch volatility? I have tried: predict(...,n.ahead=...),give me fitted value predict(...,n),give me NA,NA

>na.contiguous function (object, ...) UseMethod("na.contiguous") <environment: namespace:stats> this is what I get when I look for the source code for some functions- Is there a way to look at the source code? -- Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like

In S-Plus, I can look at the structure of a function (for example, hist) simply by entering hist <RETURN> however, if I do this in R, I get the response function (x, ...) UseMethod("hist") <environment: namespace:graphics> How can I inspect the structure of a function in R? ------------------------------- Richard Dybowski 143 Village Way

Hi R helpers, I'd like to see source code for some of built-in R functions... for example, I would like too see how "na.omit" was implemented? Thanks?

Good morning, I'd like to look at the code for the R function head. When I type just the word head, I get back function(x, ...) UseMethod("head") <environment: namespace:utils> I expected to see several lines of R code. Any suggestions? Thanks, Walt Paczkowski

Dear R community, pardon my ignorance but how would you get the source code for"non-visible functions" ? For example, I would like to see and modify the source code for the prompt() function. Thanks! Markus [[alternative HTML version deleted]]

Hello R People: Here's the Saturday night goofy question. I would like to see the code for TukeyHSD function and I tried the following: > getAnywhere("TukeyHSD") A single object matching ?TukeyHSD? was found It was found in the following places package:stats namespace:stats with value function (x, which, ordered = FALSE, conf.level = 0.95, ...)

Hello, Normally, if I type a function name, it shows the function definition. When the function is masked by a variable with the same name, it doesn't show the function definition any more. Can anyone please tell me a way how to retrieve the function definition even if it is masked by a variable? > x=1:3 > length(x) [1] 3 > length function (x) .Primitive("length") >

Dear All I am a biginner of R. I have difficulty with reading the code of a method. I am using the vars package to estimate a VAR model and I want to view the code of "predict" method for objects with class attribute "varest". I thougt I could just type the name "predict" without anything to display the code of the method as I often do with generic function.

I would like to figure out the equations for calculating "AIC" in both "step() function" and "AIC () function". They are different. Then I just type "step" in the R console, and found the "AIC" used in "step() function" is "extractAIC". I went to the R help, and found: "The criterion used is AIC = - 2*log L + k *

Dear R-Helpers, I suspect I'm about to ask a FAQ, but I haven't been able to find an answer in the FAQ, AItR or an R Site Search. When I look at the methods of summary (below) it says, "Non-visible functions are asterisked". I looked at the help file for summary.princomp, which did not comment on it being non-visible. I ran its help file example, which printed visible output. I