search for: vito_ricci

...import/export data from/to Excel: importa.da.excel<-function(){read.delim2("clipboard", dec=",") ## questa funzione consente di importare dati da Excel in R ## selezionare in Excel le celle che contengono i dati, ## compresi in nomi delle colonne ## Autore: Vito Ricci email:vito_ricci at yahoo.com ## Data di creazione: 09/11/04 } esporta.in.excel<-function(dati){write.table(dati,"clipboard", sep="\t", dec=",", col.names=NA) ## questa funzione consente di esportare dati in Excel da R ## passare come argomento il dataframe, la matrice, vettore da...

Dear UseRs, maybe is a silly question: how can I get Empirical CDF values from an object created with ecdf()?? Using print I obtain: Empirical CDF Call: ecdf(t) x[1:57] = 4.1, 4.4, 4.5, ..., 491.3, 671.27 Thanks in advance. Regards, Vito Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific

...names = c(NA, -23L), class = "data.frame") Cheers Petr > -----Original Message----- > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Mangalani > Peter Makananisa > Sent: Monday, July 10, 2017 10:30 AM > To: r-help at r-project.org > Cc: Vito Ricci (vito_ricci at yahoo.com) <vito_ricci at yahoo.com> > Subject: [R] dplyr help > > HI all, > > Is it possible to use one column spread on multiple columns values. > > example > spread( Key_col, value1:value7) > > spreading Key_col to variable value1, value2, ....... Value7 &g...

HI all, Is it possible to use one column spread on multiple columns values. example spread( Key_col, value1:value7) spreading Key_col to variable value1, value2, ....... Value7 Please advise, Kind regards Mangalani Peter Makananisa (5786) South African Revenue Service (SARS) - HO +2782 456 4669 / +2712 422 7357 Please Note: This email and its contents are subject to our email legal notice

...I have just used the reshape library and my problem was solved. Kind regards, Peter -----Original Message----- From: Jeff Newmiller [mailto:jdnewmil at dcn.davis.ca.us] Sent: 10 July 2017 03:52 PM To: r-help at r-project.org; Mangalani Peter Makananisa; r-help at r-project.org Cc: Vito Ricci (vito_ricci at yahoo.com) Subject: Re: [R] dplyr help I am pretty sure that this is not a question about dplyr... it is a question about tidyr. Look at the help file ?tidyr::spread. If I understand your question (I may not, because you gave no example of input/output data), the answer is no, the column name...

...y problem was solved. > >Kind regards, > >Peter > >-----Original Message----- >From: Jeff Newmiller [mailto:jdnewmil at dcn.davis.ca.us] >Sent: 10 July 2017 03:52 PM >To: r-help at r-project.org; Mangalani Peter Makananisa; >r-help at r-project.org >Cc: Vito Ricci (vito_ricci at yahoo.com) >Subject: Re: [R] dplyr help > >I am pretty sure that this is not a question about dplyr... it is a >question about tidyr. Look at the help file ?tidyr::spread. > >If I understand your question (I may not, because you gave no example >of input/output data), the a...

...08 8:59 AM Subject: Re: r package Please send a message to R-help mailing list. Regards. Vito Ricci Se non ora, quando? Se non qui, dove? Se non tu, chi? Personal Web Space: http://vr71.spaces.live.com/ ----- Messaggio originale ----- Da: Alexandre Lerch Franco <franco@sf.eng.br> A: vito_ricci@yahoo.com Inviato: Venerdì 15 febbraio 2008, 14:00:31 Oggetto: r package Hi Vito: my name is Alexandre Franco and I´m a doctoral student in finance and I´m looking for a package to run the JEP - Join Estimation Procedure - proposed by Chen and Liu (1993). If you know the package, please send to...

Dear UseRs, I need a litle help. I'm trying to read a .dat file of about 71 MB using read.fwf (as data recorded are in fixed width formatted data). R starts in reading data, but after some time, about 1/2 hour, I get this error: Error in .signalSimpleWarning("Reached total allocation of 510: see help(memory.size)" memory.size() 529880586 R is running under windows: sysname

Hi, I've a list containing parameters (intercepts & coefficients) of 12 regressions fitted > coeff [[1]] (Intercept) 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

Dear R-useRs, I've written a contribute (in Italian language) concering fitting distribution with R. I believe it could be usefull for someones. It's available on CRAN web-site: http://cran.r-project.org/doc/contrib/Ricci-distribuzioni.pdf Here's the abstract: This paper deals with distribution fitting using R environment for statistical computing. It treats briefly some

See FAQ #4 on the sqldf github home page. On Fri, Aug 11, 2017 at 9:21 AM, Mangalani Peter Makananisa <pmakananisa at sars.gov.za> wrote: > Dear all, > > I recently read the book " R data preperation and manipulation using sqldf package" by Djoni Darmawikarta > However, I have a problem with manipulation of dates using this package, I do not get the expected results.

I am pretty sure that this is not a question about dplyr... it is a question about tidyr. Look at the help file ?tidyr::spread. If I understand your question (I may not, because you gave no example of input/output data), the answer is no, the column names come from the column named by the key parameter and the values that fill those columns come from the column named by the value parameter.

Hi, I'm dealing with time series. I usually use stl() to estimate trend, stagionality and residuals. I test for normality of residuals using shapiro.test(), but I can't test for autocorrelation 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

Dear all, I recently read the book " R data preperation and manipulation using sqldf package" by Djoni Darmawikarta However, I have a problem with manipulation of dates using this package, I do not get the expected results. Do I need to install some packages to be able to subset the data by dates in sqldf? I am not getting Djoni Darmawikarta email address. Please see the practice

DeaR R-useRs, I'm trying to fit a logist model with these data: > dati y x 1 1 37 2 1 35 3 1 33 4 1 40 5 1 45 6 1 41 7 1 42 8 0 20 9 0 21 10 0 25 11 0 27 12 0 29 13 0 18 I use glm(), having this output: > g<-glm(y~x,family=binomial,data=dati) Warning messages: 1: Algorithm did not converge in: glm.fit(x = X, y = Y, weights = weights, start = start, etastart =

Dear all, in the coming Winter Semester, I will be a teaching assistant for a course in Survival Analysis. My job will be to do the lab sessions. The software used for these lab sessions will be R. Most of the students have a background in social sciences and the only stats package they used so far is most likely SPSS. So I assume they might be quite surprised the first time they see R

...time.cox, status.cox) ~ x, > na.action = na.exclude, method = "breslow") > fit.zph<-cox.zph(cox.fit,transform='log') > fit.zph$table[,3] > } -thomas ------------------------------ Message: 18 Date: Wed, 10 Nov 2004 17:18:17 +0100 (CET) From: Vito Ricci <vito_ricci at yahoo.com> Subject: [R] fSeries To: r-help at stat.math.ethz.ch Cc: CYRIL.CAILLAULT at FORTISINVESTMENTS.COM Message-ID: <20041110161817.82969.qmail at web41215.mail.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Hi, see ? garch in tseries package. library(tseries) > garc...

Dear R-user, I wish to know if someone is using R as concern Datamining or KDD (Knowledge Discovery in Database) and if already exists a R package specialized in this kind of analysis. I found this contributes on the R web site: [20] Diego Kuonen. Introduction au data mining avec R : vers la reconqu??te du `knowledge discovery in databases' par les statisticiens. Bulletin of the Swiss

Hi, I'm dealing with a datamining analysis: I've a lot of categories of product sold per week (n. week =26, n. categories about 50. my dataframe is like this: Settimana ALIMENTI..ALTRI. ALIMENTI.APROTEICI 1 1 3 19 2 2 2 0 3 3 1 22 4 4 2

Dear Federico, see: ? shapiro.test(stats) Shapiro-Wilk Normality Test and ? jarque.bera.test(tseries) Jarque-Bera Test They are the most common tests used for normality testing. Ciao Vito Federico Gherardini wrote on Fri Oct 15 14:44:18 CEST 2004: Hi all, Is it possible to have a test value for assessing the normality of residuals from a linear regression model,