search for: chem

I have written a function to plot data which will be used for various different chemistries. A simplified version is: plot_data <- function(risk,levels,chem,sd2,measure){ plot(risk, levels,main=paste ("per", sd2, measure, "\n in usual", chem)) } The problem is with the title. This works fine if the variable "chem" is just text, but if it is an exp...

The sample data sets that come with the NADA package are limited to one or two variables and a censored measurement indicator column. I try to mimic examples using my data but keep missing the target. My water chemistry data is available in two formats: long (as seen in a database table) and wide (as seen in a spreadsheet). The two structures are: str(chem) 'data.frame': 65349 obs. of 8 variables: $ site : Factor w/ 64 levels "D-1","D-2","D-3",..: 1 1 1 1 1 1 1 ......

Folks, This is so simple is driving me crazy. It's not really an R question is more an Statistics question. I applied a chemical in 3 different events during a growing season. I took 3 samples in each event to estimate mean applied chemical. Thus, I can easily estimate means and st.err by event. I can then estimate the total chemical applied for the whole season by adding the 3 means for each event. How can I estimat...

hi, I am reading Modern Applied Statistics with S 4th ed$B!#(B page4 have these two lines: > library(MASS) > data(chem) # needed in R only but I find withou the line " data(chem)" I can still access chem, isn't it? is it unnecessary or something i missed here? thanks for the replay in advance.

...ello Johannes: I'm sorry, but I still have the same problem with Rkward. After running apt-get update, I still can not find the amd64 version of the Rkward package. I have tried it with the following sources: deb http://cran.r-project.org/bin/linux/debian stretch-cran34/ deb http://chem.uft.uni-bremen.de/ranke/r-cran stretch-cran34/ deb http://chem.uft.uni-bremen.de/ranke/r-cran jessie-cran34/ (the source you tell me in the answer) On the other hand, the package does not seem to be in https://cran.r-project.org/bin/linux/debian/stretch-cran34/. I can see a new Rkward pac...

Before reading water chemistry into a data frame I removed all missing data. Yet when I try to run cenros() to summarize a specific chemical I get an error that I do not understand: with( subset(chem, param=='Ag'), cenros(quant,ceneq1) ) Error in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : N...

...1+b1). Thanks for your contributions to the R-Debian project! Regards. Griera. On Mon, 25 Sep 2017 11:41:54 +0200 Johannes Ranke <johannes.ranke at jrwb.de> wrote: > Hello Griera, > > sorry, I forgot an "svn add", so the package got lost on the way. > > It is on chem now, and will migrate to CRAN shortly. > > Johannes > > Am Montag, 25. September 2017, 10:57:37 CEST schrieb Griera: > > Hello Johannes: > > > > I'm sorry, but I still have the same problem with Rkward. > > > > After running apt-get update, I still...

I have included data at the bottom of this email. It can be read in by highlighting the data and then using this command: dat <- read.table("clipboard", header = TRUE,sep="\t") I can obtain solutions with both of these: library(gee) fit.gee<-gee(score ~ chem + time, id=id, family=gaussian,corstr="exchangeable",data=dat) and library(yags) fit.yags <- yags(score ~ chem + time, id=id, family=gaussian,corstr="exchangeable",data=dat,alphainit=0.05) However, I am making a mistake with: library(geepack) fit.geese <- geese(score ~...

I need to understand how and why dcast() adds NAs to a data frame that contained no missing values. The database table of chemical concentrations has all missing values removed because they cannot contribute to data analyses. The structure of the R data frame of these data have no NA values, and neither does the data frame resulting from applying the reshape2 melt() function to it. However, the data frame produced by the d...

Hi all, i'' m trying to configure puppet to use rails with postgresql. I'' m having troubles to make it work. Got no error when running puppetmasterd but nothing is being populated in the DB. Is anybody using puppet with postgres ? my config (in puppet.conf) [rails] dbadapter = postgresql dbname = mydb dbserver = localhost dbuser = user dbpassword = password

I've successfully reformatted data frames from long to wide with reshape2, but this time I'm getting errors that I want to understand and resolve. Here's the data frame structure and the results of the melt() and dcast() functions: str(waterchem) 'data.frame': 128412 obs. of 8 variables: $ site : Factor w/ 64 levels "D-1","D-2","D-3",..: 1 1 1 1 1 1 1 ... $ sampdate: Date, format: "2007-12-12" "2007-12-12" ... $ preeq0 : logi TRUE TRUE TRUE TRUE TRUE TRUE ... $ param...

Hi there, I hope to draw a plot like this: http://www.sg-chem.net/swizard/Ru-bqdi-spectra.gif is it possible to draw it using R? thanks for any suggestions. regards, Jinsong

Hello Griera, sorry, I forgot an "svn add", so the package got lost on the way. It is on chem now, and will migrate to CRAN shortly. Johannes Am Montag, 25. September 2017, 10:57:37 CEST schrieb Griera: > Hello Johannes: > > I'm sorry, but I still have the same problem with Rkward. > > After running apt-get update, I still can not find the amd64 version of the > Rk...

Hi: I have tried to upgrade from version 3.4.0 to 3.4.1 in a Debian Stretch following the instructions of the web page: https://cran.r-project.org/bin/linux/debian/ but after updating, Rkward does not work (Error in RK: Graphics API version mismatch). Analyzing the problem, I notice that the Rkward package is not available in the amd64 version (yes in the i386 version), for example here:

... does not work. I use the W2k functionality "synchronize" on my laptop to have up2date synchronized copies of my files both at the laptop and the file server. The file server is a P 200 MHz running RH Linux 9. When on-line the synchronization of files works, except for my swedish letters "???". However when off-line working with my files, then reconnecting to the

...ng to draw a figure with a series of plots to show the results of a k-means cluster analysis. Following the example in the MASS book (pg 338-339), I was able to plot the clusters in Principal Component space. My first question is: I want to emphasise the clusters using colour so I use: >plot(chem.predict[, 1:2], type="n", xlab="First principal component", ylab="Second principal component") >text(chem.predict[,1:2], labels=km$cluster, cex=0.75, col=km$cluster) >points(chem.centers[,1:2], pch=3, cex=4) This works OK, but I would like to specify the colours...

Hi! I have installed the new R on windows. I wanted to reinstall the XML package. I am not able to find the XML.zip anymore. I am quite shure that they where a windows binary version. Has anyone old XML windows binary? Eryk Dipl. bio-chem. Eryk Witold Wolski @ MPI-MG Dep. Vertebrate Genomics Ihnestrasse 73 14195 Berlin 'v' tel: 0049-30-84131285 / \ mail: wolski@molgen.mpg.de ---W-W---- [[alternative HTML version deleted]]

Hi! I am installing R in non standard directory. ./configure --prefix=/non/standard/directory The installation works fine. But after starting R i get .libPaths() /usr/lib/R/library but they cant be there of course! Have I to set some additional switches during config? Eryk Dipl. bio-chem. Eryk Witold Wolski @ MPI-Moleculare Genetic Ihnestrasse 63-73 14195 Berlin 'v' tel: 0049-30-84131469 / \ mail: wolski@molgen.mpg.de ---W-W---- http://www.molgen.mpg.de/~wolski [[alternative HTML version deleted]]

...ading zeros, and have the following set ("2A","2B","2C","7A","7B","7C","101","118A","118B","118C") to paste() together with the department, "B","P","C" (bio, phys, & chem etc) I am stuck trying to figure out regular expressions, they are new to me. Thank You very much [[alternative HTML version deleted]]

...x >> semodule: Failed on my-zabbix! >> >> Just in case.. none of that worked. >> >> >> Got any other ideas? :) >> >> Tim >> >> >> What turns up in myzabbix.te? > > > -- > regards > > Harold Toms > http://iodine.chem.qmul.ac.uk > "Priestley's works... tended to unsettle every thing, and yet settled > nothing." > - Samuel Johnson. > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos...