[R] Error message 'x' must be numeric

2012-08-04 Thread Ivette
http://r.789695.n4.nabble.com/file/n4639158/elgas2.csv elgas2.csv http://r.789695.n4.nabble.com/file/n4639158/histogramselgas.R histogramselgas.R Hello, I want to plot 9 histograms, and I prepare the data for this operation with the usual command, sapply(x, is.numeric), then I get a confirmatio

[R] problem with data frame to numeric transformation

2012-05-21 Thread Ivette
http://r.789695.n4.nabble.com/file/n4630788/GOF_CGIK.R GOF_CGIK.R http://r.789695.n4.nabble.com/file/n4630788/RESIDSNEWr.csv RESIDSNEWr.csv In order to save place, I attach the data and the R code, for which I have 2 questions. 1/ I cannot convert successfully the data frames with names "first

[R] calibration of Garch models to historical data

2012-05-02 Thread Ivette
Thank you in advance for your suggestions. Ivette -- View this message in context: http://r.789695.n4.nabble.com/calibration-of-Garch-models-to-historical-data-tp4602606.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-projec

[R] read separate columns from an Excel sheet

2012-02-26 Thread Ivette
Hello, Lets suppose I have an Excel sheet with 9 columns of data. How to tell R to read for example column 1 and 7 of this sheet? I know only the usual code without specifying columns: library(gdata) a <- read.xls("file.xls", sheet=1)# reads in the 1st sheet Thank you. -- View t

Re: [R] Help needed! Error in setwd(newdir) : cannot change working directory

2012-02-26 Thread Ivette
try setwd(choose.dir()) -- View this message in context: http://r.789695.n4.nabble.com/Help-needed-Error-in-setwd-newdir-cannot-change-working-directory-tp4421698p4422749.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-projec

Re: [R] Goodness of Fit for Copula

2012-02-26 Thread Ivette
x=your pseudo-observations in the interval [0,1] -- View this message in context: http://r.789695.n4.nabble.com/Goodness-of-Fit-for-Copula-tp4174977p4422737.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing

Re: [R] calculating VAR of a (Gumbel) copula

2011-09-18 Thread Ivette
Yes, David, you are right - I have misinterpreted the result. The.pdf is the exact output and the algorithm is working. Many thanks! Ivette -- View this message in context: http://r.789695.n4.nabble.com/calculating-VAR-of-a-Gumbel-copula-tp3821566p3822196.html Sent from the R help mailing list