similar to: R beginner

Displaying 20 results from an estimated 20000 matches similar to: "R beginner"

2010 Mar 07
1
Some hints for the R beginner
There is now a document called "Some hints for the R beginner" whose purpose is to get people up and running with R as quickly as possible. Direct access to it is: http://www.burns-stat.com/pages/Tutor/hints_R_begin.html JRR Tolkien wrote a story (sans hobbits) called 'Leaf by Niggle' that has always resonated with me. I offer you an imperfect, incomplete tree (but my roof is
2010 Mar 02
4
two questions for R beginner
>>> What were your biggest misconceptions or >>> stumbling blocks to getting up and running >>> with R? Easy. I terms of materials I have been unable to find good books that introduce users to R from the perspective of someone familiar only with packages like SPSS or STATA, or not familiar with statistics packages at all. Even introduction texts use jargon
2017 Jun 30
2
"Beginner" keyword for LLVM Bugzilla?
Hello all! I mailed the list about this yesterday, but as a reply to another email [1], so maybe it got lost: could we add a "beginner" keyword to LLVM Bugzilla, so that contributors could classify bugs as relatively simple to fix? LLVM Bugzilla has keywords like "code-cleanup" and "code-quality", which describe the nature of the PR [2]. I think a
2012 Sep 16
5
Count based on 2 conditions [Beginner Question]
Hello, I'm working with a dataset that has 2 columns and 1000 entries. Column 1 has either value 0 or 1, column 2 has values between 0 and 10. I would like to count how often Column 1 has the value 1, while Column 2 has a value greater 5. This is my attempt, which works but doesn't seem to be very efficient, especially when testing different values or columns. count=0 for (i in 1:1000) {
2011 Sep 22
4
Beginner Question: Limited conf: file-based storage pools vs. FSs directly on rpool
Hi, everyone! I have a beginner''s question: I must configure a small file server. It only has two disk drives, and they are (forcibly) destined to be used in a mirrored, hot-spare configuration. The OS is installed and working, and rpool is mirrored on the two disks. The question is: I want to create some ZFS file systems for sharing them via CIFS. But given my limited configuration:
2007 Feb 05
5
Beginner Question on Persp()
I recently downloaded R for Windows, running on Win XP. I'm trying to create a perspective plot but not having any luck after reading the R manual and several examples found on the Internet. I have a 100 x 100 matrix of Z data as a tab-delimited text file exported from Minitab. I read this in to R using read.delim; this seemed to go ok. I created X and Y using seq() to get 100 divisions
2012 Nov 08
3
Beginner help about output in R
Dear R experts, I am a beginner with R and I have a question regarding the output of a function. Basically, I created 2 functions, value1 and value2, that calculate two values, and I would like to print those two values to an output datafile. I tryed the following function: function (x) {write.table(data.frame(value1(x),value2(x)),file=output.txt)} My problem is that I would like to calculate
2012 Dec 17
4
R beginner: matrix algebra
Hi, I have an n x m matrix of numerical observations. ie. stock prices I wish to convert the matrix of observations to a matrix of simple returns (by taking the differences between (column) observations.) Can any good soul suggest a function for this? -- View this message in context: http://r.789695.n4.nabble.com/R-beginner-matrix-algebra-tp4653335.html Sent from the R help mailing list
2008 May 29
1
boxplot with text and symbols on x
Hello R-user community! I am running R 2.7.0 on a Power Book (Tiger). (I am still R and statistics beginner) I did the following : pdf("InLnegthMaxHomogeneity.pdf") boxplot(inflorescence_length_Max~Sex, main="Bartletts Homogeneity for inflorescence length",data=FemMal_Sex) Homo<-bartlett.test(FemMal_Sex$inflorescence_length_Max,FemMal_Sex$Sex) text( 2, 500,
2018 Jan 02
0
Beginner Bugs - Need help tagging
On 28/12/2017 18:06, Robinson, Paul wrote: > > >> From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of >> Philip Reames via llvm-dev >> Sent: Tuesday, December 26, 2017 11:30 AM >> To: Florian Hahn; Tanya Lattner; llvm-dev >> Cc: Clang Dev >> Subject: Re: [llvm-dev] Beginner Bugs - Need help tagging >> >>> >>> I
2019 Dec 01
2
Attempting EuroLLVM2020 as a beginner
I received this request off-list: > I would really love seeing presentations or workshops about the JIT. Kinda like the KaldeiscopeJIT tutorials but in a guided way to ask questions and improve understanding about it. Especially for use under windows since this seems to be rather rare. -Hal On 11/26/19 10:49 AM, Hal Finkel wrote: If you have suggestions for content, sending that here is
2009 Jul 04
2
[LLVMdev] A beginner question
I feel a bit bad for always asking beginner questions here but I am having some difficulties with a runtime error with which I could use some help diagnosing. 1) I am getting the assertion failure main: Type.cpp:1309: static llvm::PointerType* llvm::PointerType::get(const llvm::Type*, unsigned int): Assertion `ValueType && "Can't get a pointer to <null> type!"'
2017 Oct 06
4
Beginner Bugs - Need help tagging
Anna Zaks, David Blaikie and I have been at Grace Hopper Conference for the last couple days talking to many people about LLVM and how to get involved in the project. Its been discussed many times before at LLVM Developer Meetings and recently on the mailing list about tagging bugs with the “beginner” keyword and that keyword was recently added to the LLVM Bugzilla. However, there are very few
2010 Mar 03
2
R beginner
hello, i'am is new in R software.i have try to make a function but it can't give what it should.i dunno what have to do next. Can somebody help me to solve it.i'll very appreciate... ##GEV simulation(Non-stationary) dsim<-function(n, alpha, beta,sca,sha){ t <- 1:n location <- alpha + beta*t inv.df<-function(x) location + -(sca/sha)+(sca/sha)*(-log(x))^(-sha) u<-runif(n)
2009 Jul 04
1
[LLVMdev] A beginner question
The line comes up on a back trace using gdb. I think it's the right line (I have tried it on two separate machines one using Fedora 11 and g++ 4.4.x and the other Ubunto and g++ 4.3.3) and the situation is exceptionally odd since it only occurs when compiling my Runtime.cpp and doesnt happen when compiling other files. This is with LLVM 2.5. I did look at the Type.cpp code and it should be
2010 Jul 18
4
Question from day2 beginner
Hello, I just started learning R and have a very basic question: When I try ar model and extract residuals it returns Null. Could someone explain what's going on here? Does that mean the model is null? But it seems residual has a length=# observation of the original series according to the model summary. I am learning it by myself and have no one to ask here so please allow me to ask this
2009 Jul 04
0
[LLVMdev] A beginner question
Carter Cheng wrote: > I feel a bit bad for always asking beginner questions here but I am having some difficulties with a runtime error with which I could use some help diagnosing. > > 1) I am getting the assertion failure > > main: Type.cpp:1309: static llvm::PointerType* llvm::PointerType::get(const llvm::Type*, unsigned int): Assertion `ValueType && "Can't
2012 Nov 18
1
Decimal places
I am a beginner in programmin in general and R specifically. I would like to generate a set of random numbers in a normal distribution but to limit the decimal places in these numbers to only 2. I have been using x1 <- runif(1,0,1) to generate my numbers. Can I add something to it to enable me to only get results rounded off to 6 decimal places? -- View this message in context:
2013 Oct 06
3
[LLVMdev] Suggestion on simple optimization pass for a beginner?
Hello, I am a beginner in LLVM development with the aim of writing a new optimization pass. But then before I could do that, I thought of writing simple passes. I could successfully implement the Hello pass as given in the doc. Then I wrote a simple Constant Folding pass - evaluate instructions of the form c=10+20 and replace all uses of c with 30. Only later did I realize that Clang does this
2009 Oct 10
1
[Beginner] Issue with the barplot function
Hello, I am a beginner with R and I would need some help with doing the barplot I want. In fact I want to draw a barplot from my table, but the issue is that only the modalities with nonzero values are plotted ; the fact is that I would plot all the modalities, including those which have no value. If I'm not clear, here is an example : let X, Y and Z be three modalities which have