[R] find the Best-ticker

i need to find the best ticker from the group of some tickers.? i also need to know on what basis we calculate the best ticker? i have some idea about the if the risk rate low, or the market price high we can say the ticker is best. but i dont know is it true. Anyone can help me . T

Re: [R] PROBLEMS INSTALLING LIFEMETRICS

If your goal is to use Excel with R, or if you are having difficulty getting Lifehacker to work with Excel, perhaps you should go to http://rcom.univie.ac.at/. You don't need Lifehacker to use Excel with R, though (as you stated your problem). That just needs Statconn (which is off topic here).

Re: [R] change lm log(x) to glm poisson

Hi Josh and Elaine: John Fox's CAR book ( the companion to his applied regression text ) is really great for implementing GLMs in R. It also has a brief but quality discussion of the theory behind them. His text goes into more detail. Dobson's "Introduction to generalized linear models" is also de

Re: [R] change lm log(x) to glm poisson

Hi Elaine, If you want identical models, you need to use the same family and then the formula is the same. Here is an example with a built in dataset: ## these two are identical > coef(lm(mpg ~ hp + log(wt), data = mtcars)) (Intercept) hp log(wt) 38.86095585 -0.02808968 -13.06

[R] change lm log(x) to glm poisson

Hello list, I am running a regression using lm(Y~A+B+log(C)+log(D)) Now, I would like to test if glm can produce similar results. So the code was revised as glm(Y~A+B+C+D, family=poisson) (code 1) However, I found some example using glm for lm. It suggests that the code should be revised lik

Re: [R] Trouble with first passage time analysis using adehabitatLT

You ought to contact the package author or try the specialist lists animov or R -Sig-Geo for this topic. Cheers, Mike On Monday, October 29, 2012, zlong wrote: > I was able to answer a few of my question on my own. The units for the > Y-axis > can be set to days with the following: > > /fpt(fit1

Re: [R] Stata Database & R

A look at the R data import/export page supplied in the R HTML help system (see the link at top left) says that stata files are handled by the foreign package. S Ellison From: r-help-boun...@r-project.org [r-help-boun...@r-project.org] On Behalf Of Lore

Re: [R] List of arrays - problem with dimensions

x = c( 4 , 4 , 0 ) y = c( 1 , 0 , 2 ) t = c( 1 , 2, 2 ) r <- as.vector(table(t)) Nx <- vector("list",length(unique(t))) Ny <- vector("list",length(unique(t))) n <- vector("list",length(unique(t))) for(i in 1:length(unique(t))){ Nx[[i]] <- array(0,dim=c(1,r[i],1))+x[t==i]+1 Ny[[i]]

Re: [R] List of arrays - problem with dimensions

This time the code works, except for the spurious "}" at the end. I still don't know what the goal is. Please help yourself and us by putting spaces around assignment arrows a <- b instead of the hard-to-read a<-b and putting spaces after "," ## Let a <- 12 ## Does a<-3 ## mean a <- 3 ## or a< -

[R] Why are coefficient estimates using ML and REML are different in lme?

Hi, All,   My data collection is from 4 regions (a, b, c, d). Within each region, it has 2 or 3 units. Within each unit, it has measurement from about 25 sample site. I was trying to use lme function to discribe relationship between y and a few covariates. Both y and covariates were measured at

Re: [R] List of arrays - problem with dimensions

I am "refreshing" the code for the problem x = c( 4 , 4 , 0 ) y = c( 1 , 0 , 2 ) t = c( 1 , 2, 2 ) r<-as.vector(table(t)) Nx<-vector("list",length(unique(t))) Ny<-vector("list",length(unique(t))) n<-vector("list",length(unique(t))) for(i in 1:length(unique(t))){ Nx[[i]]<-array(0,d

Re: [R] List of arrays - problem with dimensions

Your example is hard to understand because it includes multiple copies of the number "1". Let me do something with different values and see if it gets what you are after. Your code as posted can't work because the variable n is not defined. result <- list(a=array(1:48, dim=c(2,2,3,4)),

Re: [R] Hausman test in R

Hi, I can think of no reason a Hausman test could not be used for OLS---it is a comparison of vectors of coefficients from different models usually assumed to produce similar estimates under certain conditions. Dissimilarity is taken as indicative of a lack of some or all the conditions required

[R] List of arrays - problem with dimensions

Dear all, I want to obtain the following result [[1]] , , 1, 1 [,1] [,2] [1,]11 [2,]11 , , 2, 1 [,1] [,2] [1,]11 [2,]11 , , 9, 1 [,1] [,2] [1,]11 [2,]11 , , 10, 1 [,1] [,2] [1,]11 [2,]11

Re: [R] Hausman test in R

1. These are primarily statistics issues, not R issues. You should post on a statistical help list like stats.stackexchange.com, not here. 2. However, given your acknowledged statistical ignorance, you may be asking for trouble. I suggest you seek help from a local statistical expert to get you st

Re: [R] interpreting repeated measures mixed model

HI Mario, I think you will get more response if you post at R mixed models (r-sig-mixed-mod...@r-project.org) mailing list. A.k. - Original Message - From: gaiarrido To: r-help@r-project.org Cc: Sent: Sunday, October 28, 2012 7:42 AM Subject: Re: [R] interpreting repeated measures m

[R] Hausman test in R

Hi there, I am really new to statistics in R and statistics itself as well. My situation: I ran a lot of OLS regressions with different independent variables. (using the lm() function). After having done that, I know there is endogeneity due to omitted variables. (or perhaps due to any other reaso

Re: [R] wanna create all points.....

Hello, You had enough answers to variants of this question to already know to open a graphics device once and _just_ once using plot() and then, in the loop, use points(). plot(1, type = "n", xlim = c(0, 20), ylim = c(0, 8), ylab="sample mean", xlab="sample size") for (i in seq(1:20

Re: [R] Trouble with first passage time analysis using adehabitatLT

I was able to answer a few of my question on my own. The units for the Y-axis can be set to days with the following: /fpt(fit1, seq(length=5), units="days") / This sets the y-axis units to 'days', defines the number of radii (5), and removes the scaling function that wasn't really necessary for my

Re: [R] Best fitted curve

Looking at that data, it looks like the two species respond differently to GDD. "Fitting a curve" means first defining and then fitting a model that, once fit, has fitted values that will give you the curve that you wold like to draw. The simplest would be a series regression with interaction ter

Re: [R] Having some Trouble Data Structures

HI, May be this helps. dat1<-data.frame(ID=formatC(0001:0010,width=4,flag="0"),No_of_Effectors=rep(3,10)) dat1<-within(dat1,{ID<-as.character(ID)}) list1<-lapply(1:nrow(dat1),function(x) paste(sample(1:1,3,replace=TRUE)),sep=",") dat2<-data.frame(dat1,do.call(rbind,lapply(lapply(1:nrow(dat1

Re: [R] error bars

Hello R-help, Thanks to everyone for the prompt replies. Yes. I didn't reinstal the Hmisc package after updating R to the recent version. This worked. Thank you so, much! I'm relieved that I was able to update my charts just prior to my presentation. You'll are awesome. Best Regards, Franklin

Re: [R] Encoding

Hi Duncan: The problem is that in Windows I can't do the source() with encoding="utf-8", so I don't reach the step of adjusting DESCRIPTION file. Eva --- El dom, 28/10/12, Duncan Murdoch escribió: De: Duncan Murdoch Asunto: Re: [R] Encoding Para: "Eva Prieto Castro" CC: r-help@r-project.or

Re: [R] Having some Trouble Data Structures

Hi, In addition to using paste(), you can also try this: dat1<-data.frame(ID=formatC(0001:0010,width=4,flag="0"),No_of_Effectors=rep(3,10)) dat1<-within(dat1,{ID<-as.character(ID)}) list1<-lapply(1:nrow(dat1),function(x) sample(1:1,3,replace=TRUE)) dat2<-data.frame(dat1,Effectors=I(list1))  st

[R] Best fitted curve

Hi I have trouble making a best fitted curve for a xy-plot. My data consist of two groups with four repititions for each x-value. plot(weight~gdd,data=weight,pch=as.numeric(species)) Can you help? Cecilie -- View this message in con

Re: [R] summation sign

Hi Sara, Not very clear either. You mentioned you want to repeat the sum 5 times.  Is it on the same x variable or different x variables? If you want to repeat the sum 5 times on the same x variable, x1<-c(.3,.2,.1)  fun1<-function(x,i){  res<-lapply(1:i,function(y) -sum(log(1-x^2)))  res1<-unl

Re: [R] interpreting repeated measures mixed model

nobody? please - Mario Garrido Escudero PhD student Dpto. de Biología Animal, Ecología, Parasitología, Edafología y Qca. Agrícola Universidad de Salamanca -- View this message in context: http://r.789695.n4.nabble.com/interpreting-repeated-measures-mixed-model-tp4647652p4647689.html Sent fr

Re: [R] Encoding

Hi Duncan, What dos it happen if I need use non-ASCII characters?. Is there no way in order to make the package in Windows PC and it runs on Mac?. I am lost, very lost. Thanks. Eva --- El dom, 28/10/12, Duncan Murdoch escribió: De: Duncan Murdoch Asunto: Re: [R] Encoding Para: "Eva Prieto

[R] lbfgsb from C

Hi, I wanted to use R's lbfgsb method for minimization from C. Unfortunately, my toy examples always crashes (segmentation fault). What's wrong with it? double eval(int n, double* par, void *ex) { double result = 0; for (int i=0; ihttp://cran.r-project.org/doc/manuals/R-exts.html#Optimization

Re: [R] Encoding

On 12-10-28 10:57 AM, Eva Prieto Castro wrote: Hi Duncan: The problem is that in Windows I can't do the source() with encoding="utf-8", so I don't reach the step of adjusting DESCRIPTION file. The DESCRIPTION file is a plain text file, not R code. You don't need to source() it, you just edit

Re: [R] Having some Trouble Data Structures

Search on "ragged array". My preferred approach is to use a data frame with one row per effector that repeats the per-ID information. If that occupies too much memory, you can setup another data frame with one row per ID and refer to that information as using lapply and subset the effectors da

Re: [R] Having some Trouble Data Structures

On 28.10.2012 10:32, Benjamin Ward (ENV) wrote: Hi All, I'm trying to run a simulation of host-pathogen evolution based around individuals. What I need to have is a dataframe or table of some description - describing all the individuals of a pathogen population (so far I've implemented this

[R] In is.euclid(m2) : Zero distance(s)

Dear useRs,i am applying "mantel test" to find the correlation between distance matrices, by ade4 package. some of the correlations, although given me r-values, have shown following warning message.. "In is.euclid(m2) : Zero distance(s)" i wanted to know that why has this message prompted? altho

Re: [R] Encoding

On 12-10-28 7:56 AM, Eva Prieto Castro wrote: Hi Duncan, What dos it happen if I need use non-ASCII characters?. Is there no way in order to make the package in Windows PC and it runs on Mac?. As I said: always use the same encoding for them, and declare it in the DESCRIPTION file. See the

Re: [R] Encoding

On 12-10-28 3:49 AM, Eva Prieto Castro wrote: Hi again, Duncan: I understand you tell me, but I don't reach it runs in Mac. How must I do?. There is a function in the tools package called showNonASCIIfile. If you run it on each source file in your package, you may detect other non-ASCII cha

Re: [R] keep average values and delete duplicate rows

Hi Jeff, Sorry for the misunderstanding. I may have phrased my question as such, but my intention is really learn the workings of R. I am trying to replicate the results from an econometric paper in R, and I don't have any experience. I will reconsider my posts in the future. Regards, -- Vie

Re: [R] Grid Width in polar.plot

On 10/27/2012 12:48 AM, MartinD wrote: Hello, I am using the polar.plot function from plotrix. Is there a way to change the width of the grid lines? grid.lwd doesn't work Hi Martin, At the moment, there is no option for changing the width of the grid lines. However, I have had a statistica

Re: [R] keep average values and delete duplicate rows

Hi Arun, Thanks for replying. Sorry I didn't list it, I do have democracy index in my dataset. The full set includes these columns: Country Code (3 letter abbreviation) Country Education Freedom house demo index log population log real gdp nominal savings polity demo index year (5 yr interval:

Re: [R] Encoding

Hi again, Duncan: I understand you tell me, but I don't reach it runs in Mac. How must I do?. Thanks. Eva --- El sáb, 27/10/12, Duncan Murdoch escribió: De: Duncan Murdoch Asunto: Re: [R] Encoding Para: "Eva Prieto Castro" CC: r-help@r-project.org Fecha: sábado, 27 de octubre, 2012 14:12

[R] Having some Trouble Data Structures

Hi All, I'm trying to run a simulation of host-pathogen evolution based around individuals. What I need to have is a dataframe or table of some description - describing all the individuals of a pathogen population (so far I've implemented this as a matrix): ID No_of_Effectors