similar to: How to see source code for na.omit?

Dear R users, I'm new but already fascinated R user so please forgive for my ignorance. I have the problem, I read most of help pages but couldn't find the solution. The problem follows.... I have large data set 10,000 rows and more than 100 columns... Say something like var1,var2,var2,var4.......var120 ------------------------------------------- 12,12,345,657,67,8.....

Dear all, I'm trying to process HUGE datasets with R. It's very fast, but I would like to optimize it a bit more, by focusing one one column at time..... say file is 1GB big and has 100 columns..... In order to prevent "out of memory" problems.... I need to load one column at the time.... the only problem is that read.table doesn't support this feature.... Is there some

I read in ?na.omit that it returns the object with incomplete cases removed. I interpret this to mean that any zoo object row where any column shows 'NA' will be removed from the data set. That's not what I need, since the 'NA' represents information in my context. However, what I would like to do is eliminate the rows where every column is 'NA'. When I aggregate

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 know one way to see the code for a hidden function, say function_x, is using default.function_x (e.g. summary.default). But how can I see the code for imported packages that have no namespace (in this case Design)? Many Thanks Eleni

Hi all R helpers, I'm trying to comeup with nice and elegant way of "detecting" consecutive increases/decreases in the sequence of numbers. I'm trying with combination of which() and diff() functions but unsuccesifuly. For example: sq <- c(1, 2, 3, 4, 4, 4, 5, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1); I'd like to find way to calculate a) maximum consecutive increase = 3 (from 1

Hello, If I want to see how, say, apply function is written, how would I be able to do that? Just typing "apply" at the prompt does not work. Thank you for help! Sergey

Why is it that when a vector contains no NAs, na.omit returns an empty vector rather than the object/vector that was passed to it? >na.omit(c(1,2,3,4)) numeric(0) in contrast ... >na.omit(c(1,2,3,NA)) [1] 1 2 3 attr(,"na.action") [1] 4 attr(,"na.action")attr(,"class") [1] "omit" Thanks, Alex --------------------------- platform

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

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

Hi R users, I have a question. How can I see the code behind the function. For example, > boxplot function (x, ...) UseMethod("boxplot") <environment: namespace:graphics> I really would like to see how people code this. Could someone please show me how to see the code behind the function? Many Thanks Tu -- View this message in context:

>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

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]]

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

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:

Hello everyone, I'm new to the CentOS list, so forgive me if this has been answered before (someone please point me to an efficient way of searching through the list archives). I have a wifi card from the subject line, and have the driver installed. Using NetworkManager under Gnome everything works perfectly. However, I prefer to use network service instead of NetworkManager since a) I use

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.

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

Hi R specialists, The na.omit.ts() method fails when the time series contains internal NA's. How can these automatically be removed? > spectrum(ts.mNDII, na.action=na.omit) Error in na.omit.ts(as.ts(x)) : time series contains internal NAs How can the na.action be activated correctly? > acf(ts.Lin, type=c("correlation"), na.action=na.omit) Error in na.omit.ts(as.ts(x)) :