similar to: solve() doesn`t work

Hello R Users, I am new to R and I have simple problem for R users. I have CO2 observations defined on time axis(yr,mo,day,hr,min,sec). (DATA ATTACHED HERE) First I want to convert time axis as one axis as 'hour' on regular interval as 1 hour. Say 00 hrs to 24hrs(jan1), 25hrs to 48hrs(jan2) and so on. Then I want to interpolate CO2 at every hour. Kindly anybody can help, Many thanks,

Hi, I am using R to fit statistical models to data were the observations are means of the original data. R is used to calculate the mean before fitting the model. My problem is: When R calculates the means using tapply, the class of the means differs from the class of the original data, which gives me trouble when I want to use the original data to calculate model predictions. Here is a simple

Hello I have the following data frame which I read from an EXCEL file, and when i try to call one of its columns with a space in their names I am not being able to. For example if I do EURODOLLAR$ED1.Comdty Date I obtain the following error: Error: inesperado símbolo en "EURODOLLAR$ED1.Comdty Date" I have also tried using . or _ instead of the space and have obtained no succes. How do I

Here's a bug one of my students noticed. When you call plot() on a glm object, plot.lm gets called. The second plot it shows is supposed to give a normal QQ plot of the standard deviance residuals, but it doesn't. The glm object created by glm.fit returns something (the IRLS weights?) in fit$weights which plot.lm takes as observation weights, so you get strange residuals in the QQ

Dear R-helpers and Dr. Hijmans, I can not invoke maxent() in GNU Linux. Could you give me any directions on that? There is maxent.jar in version 3.3.3e in the right folder. ######################################## R: > jar <- paste(system.file(package="dismo"), "/java/maxent.jar", sep='') > jar [1] "/ebio/abt6/jmao/rpacks/dismo/java/maxent.jar"

Hi all, Hope someone could help me. I am trying to run automatically the conversion of an Rwn file to a tex file. I am using windows 7, and cygwin. I tried to run automatically the Sweave.sh script, in its the most recent version available at R webpage: http://cran.r-project.org/contrib/extra/scripts/Sweave.sh Unfortunately, I got this error message: =========================== Raquel at

hi, so after upgrade to the current cvs all of our problem disappear:-) but we don't have time to test the ssl part... although after I compile and install the new dovecot I stop it I do a -------------------- find /home/*/Maildir -name '.imap*' -exec rm {} \; find /home/*/Maildir -name 'dovecot-uidlist' -exec rm {} \; find /home/*/Maildir -name 'msgid.cache' -exec rm

Dear R-users, I have two samples with individuals that are in more than one of the samples and individuals that are only in one sample. I have been trying to do a pooled hazard model, stacking one sample below the other, with aftreg and time-dependent covariates. The idea behind is to see aggregate effects of covariates, but need to control for ther effects of same individuals in both samples

Hi I am running Mac OX tiger with the installed ruby 1.8.2, and mysql5 (I checked that it was running in preference). I tried to run the various fixes recommended in agileweb. I am stuck on page 57, script/generate scaffold... > Could you paste in your database.yml file, from the > "config" folder inside your Rails app? If you have any > passwords entered there, you should