search for: uptake

The formula attribute of the builtin CO2 dataset seems a bit strange: > formula(CO2) Plant ~ Type + Treatment + conc + uptake What is one supposed to do with that? Certainly its not suitable for input to lm and none of the examples in ?CO2 use the above.

Dear list, Has anyone created a version of SSmicmen that allows testing for group differences? The basic Michaelis-Menten equation is: (Bmax * X) / (Kd + X). The nlme package allows modeling of random effects for Bmax and Kd as needed, but I curious how I can build in group differences? I have receptor binding data for strains of mice, and following Pinheiro and Bates' lead in their

...=' ~ ')), data = data, groups = 'Plant', ngroups=ngroups, pch = "|", box.width = mywidth, panel = mypanel, panel.groups = mypanel.groups) } myCO2 <- CO2 myCO2$year <- 2011 summary(myCO2) mybwplot('Type','uptake',myCO2) # works mybwplot('Type','uptake',myCO2,'Treatment') # Error using packet 1, 'x' is missing mybwplot('Type','uptake',myCO2,'year') # Error using packet 1, 'x' is missing # Deepayan Sarkar suggested code (adapted to myC02)...

Hello all, I have a data frame with year, month, species, fishing gear and catch (Y, M, S, F, C) and I want the sum of C by Y for species "A" and fishing gear "trawl". I tried things like aggregate(C[S=="A" & F=="trawl"], list (Year = Y[S=="A" & F=="trawl"]), fun=sum), but it didn't worked. To overcome this problem I did

...d draft of this report, which is now available for public circulation. Many thanks go to those who contributed their feedback after the first draft. * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - FOSS Codecs for Online Video: Usability, Uptake and Development* A review of available tools for the creation, playback and embedding of online video using Free and Open Source Software video codecs and a look at the most pressing areas for development to enhance their adoption by social change video projects on the web. http://wiki.transmiss...

...;<..: 1 1 1 1 1 1 1 2 2 2 ... $ Type : Factor w/ 2 levels "Quebec","Mississippi": 1 1 1 1 1 1 1 1 1 1 ... $ Treatment: Factor w/ 2 levels "nonchilled","chilled": 1 1 1 1 1 1 1 1 1 1 ... $ conc : num 95 175 250 350 500 675 1000 95 175 250 ... $ uptake : num 16 30.4 34.8 37.2 35.3 39.2 39.7 13.6 27.3 37.1 ... - attr(*, "formula")=Class 'formula' length 3 uptake ~ conc | Plant .. ..- attr(*, ".Environment")=<environment: R_EmptyEnv> - attr(*, "outer")=Class 'formula' length 2 ~Treatment *...

....list(x))x<-list(x) if(!is.list(f))f<-list(f) #collapse to vector x <- tapply(x[[1]],x) f <- tapply(f[[1]],f) #analyse return(all(sapply(lapply(split(f,x),unique),length)==1)) } CO2$Plant %nested.in% CO2[,c("Type","Treatment")] #TRUE CO2$Plant %nested.in% (CO2$uptake < mean(CO2$uptake)) #FALSE

I hazard to submit, more people are turning to opensource as XP becomes obsolete. Perhaps it is time to dust off the 101 material and get it ready to cut and paste in... -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.winehq.org/pipermail/wine-users/attachments/20080404/6d2ca5f6/attachment.htm

Dear Theora/Xiph folk, * FOSS Codecs for Online Video: Usability, Uptake and Development - First Draft* A review of available tools for the creation, playback and embedding of online video using Free and Open Source Software video codecs and a look at the most pressing areas for development to enhance their adoption by social change video projects on the web. http:/...

Dear Theora/Xiph folk, * FOSS Codecs for Online Video: Usability, Uptake and Development - First Draft* A review of available tools for the creation, playback and embedding of online video using Free and Open Source Software video codecs and a look at the most pressing areas for development to enhance their adoption by social change video projects on the web. http:/...

Dear forum members, What is the formula to calculate denominator degrees of freedom (den df) for nonlinear mixed-effect models with covariates? My model is similar to a CO2 uptake example from Pinheiro and Bates (2000, page 376). In this CO2 dataset, there are two treatments and two types (84 observations in total), but den df for each parameter of the model is 64. Isn’t it too high? Your help is greatly appreciated, Julia Summary of the CO2 example: > summary(fm4...

Apols but would someone please forward some info on this. I want to connect to samba4 and all I can seem to find are results of the now non existent configuration script. I think you might start to find an increase on uptake and the removal might of been premature? Make me happy anyway as confused at the moment. Stuart

Dear R list members, I have a question regarding xyplot. I managed to make a xyplot of all the IDs by using the syntax below: xyplot(PA ~ CRPC + CRPT | ID, data = redinteract) Now, I'd like to make a graph of a specific ID number (e.g., only ID number 301). I thought I could use "subset", but it seems to be not working. Could anyone let me know how I can make a graph of a

...d names. The anova.coxph command, in a slavish copy of anova.lm etc, returns a data frame with column labels of loglik Chisq Df Pr(>|Chi|) If one tries to extract the final column of the table errors result since it is not a standard R variable name. > afit <- anova(lm(conc ~ uptake, CO2)) > afit$P [1] 2.905607e-06 NA Warning message: In `$.data.frame`(afit, P) : Name partially matched in data frame > afit$Pr(>F) Error: unexpected '>' in "afit$Pr(>" The second is a result of allowing TAB completion of the name. Yes, experienced fo...

...ould be nice to see a syslinux-related presentation at FOSDEM 2012. There are a few tracks where syslinux fits in (Configuration and Systems Management, Embedded, Distribution ?) so it shouldn't be hard to get one or more slots. I enjoyed Peter's presence two years ago and it lead to an uptake of the project (I remember Erwan released HDT after a gettogether), maybe another presentation and gettogether can again make a difference ? Having a LUA demonstration, or an HDT presentation can attract some love from outside contributors ? Just thinking aloud... -- -- dag wieers, dag at wi...

Friends in the Asterisk community, I'm kind of interested in the slow uptake of Asterisk 1.4. Between 1.2 and 1.4 there's been a lot of important development. New code cleanups, optimization, new functions. I realize that 1.4 at release time wasn't ready for release, but we've spent one year polishing it, working hard with bug fixes. The 1.4 that is in dist...

...2.500000E-02 Phytoplankton Half-Saturation Constant for N Uptake for Group 1 (mg N/L)...

I need to compute the mean and the standard deviation of a data set and would like to have the results in one table/data frame. I call tapply() two times and do then merge the resulting tables to have them all in one table. Is there any way to tell tapply() to use the functions mean and sd within one function call? Something like tapply(data$response, list(data$targets, data$conditions), c(mean,

Hi, what is the recommended way of adding a strip to a lattice plot? In the example below I would like to add the value of mean(y) to a new strip.: --8<---------------cut here---------------start------------->8--- library(lattice) ## Small sample data set: p0 <- xyplot(uptake ~ Type | Treatment, data = CO2) p1 <- update(p0, panel = function(x, y, ...) { panel.xyplot(x, y) panel.abline(h = mean(y), col = "red" ) } ) plot(p1) --8<-...

...x11 device, though it may well be that an initial plot is overwritten. With a pdf or postscript device, I get two plots, the first of which still has the red border from having the focus, while the second is the plot that I want. library(lattice); library(grid) plt <- xyplot(uptake ~ conc, groups=Plant, data=CO2) print(plt) trellis.focus("panel", row=1, column=1) arglist=trellis.panelArgs() arglist$type <- "l" do.call("panel.superpose", args=arglist) trellis.unfocus() Should I be able to u...