search for: diventar

...anno -427017.1740 217.0588 [[2]] (Intercept) anno -39625.82146 21.78025 ..... [[12]] (Intercept) anno 257605.0343 -129.7646 I want create a data frame with two columns (intercept and anno)using data in these list. Any help will be appreciated. Best Vito ===== Diventare costruttori di soluzioni "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese.shtml

...elation and heteroskedasticity. Is there a way to perform Durbin-Watson test and Breusch-Pagan test (or other simalar tests) for time series? I find dwtest() and bptest() in the package lmtest, but it requieres an lm object, while I've a ts object. Any help will be appreciated. Best Vito ===== Diventare costruttori di soluzioni Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese.shtml

...on(x) { q<-as.vector(quantile(x,prob=c(.25,.50,.75))) b=(q[3]+q[1]-2*q[2])/(q[3]-q[2]) return(b) } b3<-function(x) { m=mean(x) me=median(x) n=length(x) d=sum(abs(x-me))/n b=(m-me)/d return(b) } but I'm looking for some already included in a package. Thanks in advance. Best Vito ===== Diventare costruttori di soluzioni "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese.shtml

...ati) Coefficients: (Intercept) x -348.23 11.23 Degrees of Freedom: 12 Total (i.e. Null); 11 Residual Null Deviance: 17.94 Residual Deviance: 7.011e-10 AIC: 4 I don't understand the meaning of warning. Can anyone help me? Many thanks. Cheers, Vito ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Top 10 reasons to become a Statistician 1. Deviation is considered normal 2. We feel complete and sufficient...

Dear R-users, I'm finding for a R-package concerning graphs. Is there some kind of that package? I've a set of correlation coeffients between several variable and I wish to built a graph to link variables correlated. Many thanks. Best, Vito ===== Diventare costruttori di soluzioni "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese.shtml

...probability density plot. Now I always generate random numbers of normal distribution and calculate their dnorm(mu, var), finally plot them. I am eager to know some directly operation. Thank you for your attention. I am looking forward to hearing from you soon. Best regards, Long Yu ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese...

...rest you'll see: http://faculty.washington.edu/ezivot/book/QuanCopula.pdf Cordially Vito You wrote: Dear R: Is there a function or a reference to simulate Gumbel copulas, please? Thanks in advance! Sincerely, Erin Hodgess mailto: hodgess at gator.uhd.edu R version 2.0.1 windows ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/palese/

Hi, I have downloaded the "R-Com and I was able to run "Interactive Graphics Demo 2" in excel. However, I couldn't create my own boxplot. Whenever I tried to run any code, it always say" Error in loading DLL", even "=rput(A1,A2:A20)". Any idea about what's going wrong? A detailed explaination about how to use R-Excel tool would be greatly appreciated.

Dear R-Users, is there any statement to fit a orthogonal regression in R environment? Many thanks in advance. Best regards, Vito Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box "Statistical thinking will one day be as necessary for efficient citizenship as the ability to read and write" H....

...? platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 0.0 year 2004 month 10 day 04 language R Thanks in advance. Vito ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese...

...60 x<-c(10,20,30,40,50,60) ## observation serie<-ts(dati, start=c(1,1),frequency=7) ##creating ts object serie ## printing ts output Time Series: Start = c(1, 1) End = c(1, 6) Frequency = 7 [1] 10 20 30 40 50 60 Could someone help me? Thanks in advance. Sincerely. Vito Ricci ===== Diventare costruttori di soluzioni Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese.shtml

Hello, R users, I am a very beginner of R and tried read.csv to import an excel file after saving an excel file as csv. But it added alternating rows of fictitious NA values after row number 16. When I applied read.delim, there were trailing several commas at the end of each row after row number 16 instead of NA values. Appreciate your help. Kyong [[alternative HTML version deleted]]

...he name of the column to the dataframe name by means of the $ sign: so z$energy is the column named energy in the dataframe z. I don't know how to do the same with a multi-variable time-series. I tried both z.energy, z$energy to no avail. What's the right synthax? Ciao Vittorio ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Top 10 reasons to become a Statistician 1. Deviation is considered normal 2. We feel complete and sufficient...

...oodness of fit. TOC 1.0 Introduction 2.0 Graphics 3.0 Model/function choice 4.0 Parameters estimate 5.0 Measure of goodness of fit 6.0 Goodness of fit tests 6.1 Normality tests 7.0 Conclusions Appendix References Any comments and suggestion will be appreciated. Best regards Vito ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Top 10 reasons to become a Statistician 1. Deviation is considered normal 2. We feel complete and sufficient...

...t; "D" "C" "B" "C" "D" "A" "C" "A" "A" "A" "C" "A" "D" "A" "B" "B" [39] "A" "B" > Mode(ss) [1] "A" ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese...

...I wrong? X2=sum((O-E)^2)/E) O=empirical frequencies E=expected freq. calculated with the model (such as normal distribution) See: http://www.itl.nist.gov/div898/handbook/eda/section3/eda35f.htm for X2 used as a goodness of fit test. Any help will be appreciated. Thank a lot. Bye. Vito ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Top 10 reasons to become a Statistician 1. Deviation is considered normal 2. We feel complete and sufficient...

I would be very grateful for any help from members of this list for what might be a simple problem... We are trying to simulate the behaviour of a clinical measurement in a series of computer experiments. This is simple enough to do in R if we assume the measurements to be Gaussian, but their empirical distribution has a much higher peak at the mean and the distribution has much longer tails.

...lthough, it is really no homework. I need it for my Phd in physics; after a lengthy computation on the computer I would like to go to see whether the outputs are log-normal or normal distributed. Regards, Siegfried Gonzi == University of Graz Institute for Physics Tel.: ++43-316-380-8620 ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese...

...which are log-normal distributed when evaluated on a daily basis over the course of a year but they are close to a Gaussian distribution when considered under the light of monthly means over the course of a year. Is such a latter case feasible. And if not why. Regards, Siegfried Gonzi ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/palese/

Hi. I'd like to do a t-test to compare the Delta values of items with Crit=1 with Delta values of items with Crit=0. What is the t.test syntax? It should produce a result like this below (I can't get in touch with the person who originally did this for me) Welch Two Sample t-test data: t1$Delta by Crit t = -3.4105, df = 8.674, p-value = 0.008173 alternative hypothesis: true