similar to: Size of data vs. needed memory...rule of thumb?

New to R, sorry if one or either of these is an inappropriate list for a question like this below; please let me know if this is a general help question. Jill Willie Open Seas Safeco Insurance jilwil at safeco.com -----Original Message----- From: WILLIE, JILL Sent: Thursday, January 25, 2007 2:27 PM To: r-help at stat.math.ethz.ch Subject: reducing RODBC odbcQuery memory use? Basic

1. Can I avoid having RODBC use so much memory (35 times the data size or more) making a data.frame & then .rda file via. sqlQuery/save? 2. If not, is there some more appropriate way from w/in R to pull large data sets (2-5GB) into .rda files from sql? [R] reducing RODBC odbcQuery memory use? From: WILLIE, JILL <JILWIL_at_SAFECO.com> Date: Thu 25 Jan 2007 - 22:27:02 GMT

I would like the option to specify alternative scale parameters when using the gamma family, log link glm. In particular I would like the option to specify any of the following: 1. maximum likelihood estimate 2. moment estimator/Pearson's 3. total deviance estimator Is this easy? Possible? In addition, I would like to know what estimation process (maximum likelihood?) R is using to

We are wanting to use R instead of/in addition to our existing stats package because of it's huge assortment of stat functions. But, we routinely need to fit GLM models to files that are approximately 2-4GB (as SQL tables, un-indexed, w/tinyint-sized fields except for the response & weight variables). Is this feasible, does anybody know, given sufficient hardware, using R? It appears to

I have a really long functions, and at the end of the function, I am using a if statement to tag certain keywords based on whether they have certain values contained in them. However, the if statement doesn't seem to work. When I had split up the commands into various functions, it worked fine, but I'm not sure what going on now that it's combined into a single function. myfunc

Hi there, I run the following code in R and got the warning like that, how can I change the memory.size? Or anything else? Thanks a lot! Faye temp<-apply(Idd4.perms$permstats[-stratum1,], + 2,sort) Error: cannot allocate vector of size 47.5 Mb In addition: Warning messages: 1: In apply(Idd4.perms$permstats[-stratum1, ], 2, sort) : Reached total allocation of 1023Mb: see help(memory.size)

Dear List, today I turn to you with a next problem. I'm trying to compare species richness between various datasets (locations) using species accumulation curves (Chapter 4, page 54 in Tree diversity analysis<http://www.worldagroforestry.org/treesandmarkets/tree_diversity_analysis.asp>by Kindt & Coe). To accomplish this I'm using package BiodiversityR. My data is comprised of

Hello, I am having trouble understanding how R is coercing between matrices and lists in the following example. I have an aggregate behavior I like: aggregate(a[,"num"],by=list(product=a[,"product"],region=a[,"region"]), sum) Now in reality I have more columns than just product and region, and need to pick different combinations. So I want to abstract this into a

Hi all, I would like to combine elements of a vector: vec <- c("astring", "b", "cstring", "d", "e") > vec [1] "astring" "b" "cstring" "d" "e" such that for every element that contains "string" at the end, it is combined with the next element, so that I get this:

hello, Suppose I have a table that looks like this: center name email Health Jon jon@test.com Health Bob bob@test.com Admin Jane jan@test.com Admin Jill jill@test.com I would like the output to look like this: Health Jon jon@test.com Bob bob@test.com Admin Jane jan@test.com Jill jill@test.com when i using cold fusion, this was easy via a tag called cfoutput. when i was using java, this was

Hi, I am trying to edit a data frame such that the string in the first line is appended onto the beginning of each element in the subsequent rows. The data looks like this: > df V1 V2 V3 V4 1 DPA1* DPA1* DPB1* DPB1* 2 0103 0104 0401 0601 3 0103 0103 0301 0402 . . and what I want is this: >dfnew V1 V2 V3 V4 1 DPA1* DPA1* DPB1* DPB1* 2 DPA1*0103

Hello list The Samba Howto Collection repeatedly asserts that by setting the sticky bit on directories any files created in those directories will be created with the owner set to that of the directory (for example, see http://samba.mirror.ac.uk/samba/docs/man/howto/AccessControls.html#id2541262). This has never worked for me. Files created inherit the group of the directory, but not the owner.

Hi all, I think this is a very basic question, but I'm new to this so please bear with me. I'm using match to translate elements of a data frame using a lookup table. If the content of a particular cell is not found in the lookup table, the function returns NA. I'm wondering how I can just ignore those cells, and return the original contents if no match is found in the lookup table.

I have a number directories under /opt on computer jack. I want some (not all) of them to appear in /opt on computer jill. I have the /opt directory on jack mounted on jill under /mnt/jack If I go into the /opt directory on jill and do this: ln -s /mnt/jack/opt/files . I get /opt/files/files on jill. What I want is /opt/files and I can't see what I'm doing wrong. -- MELVILLE

Guess what I have no clue what i am doing/ meant to do with R. i have just begun statistics for uni and all commands don't seem to work, they say syntax error, we are meant to put a hist.r in but ? please help, step by step, to use this program i would turn it on (it comes up rgui) is this wrong, have i put the wrong bit on it? Please help, I am so glad there is an R help Thankyou jill

Hi All, I know there has been a lot of interest in John Terpstra's upcoming book, "Samba-3 by Example: Practical Exercises to Successful Deployment." The book is scheduled to print end of March and can be found at local bookstores by early April. In the meantime, John will be giving a talk at the BYU UNIX User's Group tomorrow, Thursday, February 19th at 8PM, where he will be

Hello Everyone - Well, I think I'm getting closer with the asterisk connection. This is my setup and I keep getting this error below in ,my /var/log/asterisk/messages file. I have opened 5060 port on the firewall box. I would this is Warning which I can ignore! But I see the connetcion coming but NO DIAL TONE on mt ata186 box sitting in my 192.168.200.x site! I'm using ATA186(cisco

Can someone tell me what an object of class lm returned by lm means? I assumed it mean the regression model - but I'm not sure how to enter this in. I have tried y~a+b but this is not working. I have also tried saving the regression results and entering these, but again this is incorrect. This language is from the following: lm.LMtests(model, listw, zero.policy=FALSE,

I am using code that previously worked to remove stopwords using package "tm". Even manually adding "the" to the list does not work to remove "the". This package has undergone extensive redevelopment with changes to the function syntax, so perhaps I am just missing something. Please see my simple example, output, and sessionInfo() below. Thanks! Mark require(tm)

Hi, I am Jill, I'm new here and new with llvm. I find that its old PRE.cpp has been removed from llvm-1.9 and the project homepage says that a GVN-PRE pass is being implemented. Since many PRE algorithms have been suggested, and I think PRE further differs according to the specific defination of equivalence, whether it is an "optimal" algorithm and optimal at what metric, etc, can I