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Hello useRs (please don't kill me), I've fairly new to R having only a few months of playing around with R. What little I've learned has been extremely useful. If someone could point me as to how to replicate the Boltzman Sigmodial curve fit as provided by Graphpad software I'd be eternally grateful. Where we currently use Graphpad for only this one function,its seems highly inefficient for a $100 piece of software to be used for only one function (which isn't nearly as bad as the company's pandemic reliance on Excel for nearly everything else)....

Hi friends I just started using wine on my Linux-machine. Mostly because I want to switch finally from Windows to Linux on my computer at work. There is just one single application I want to "take with me" and that is "GraphPad Prism" (http://www.graphpad.com/prism/Prism.htm). So I installed wine0.9.20 on my Mandriva2007. Then I used wine to install Prism in its most recent version. Everythings fine, Prism starts, but I cant open any old file or even blank cheets. A quick google-research showed me that Graphpad know...

I really don't know about this special-purpose distribution of R... you should probably contact the developer. From the error, I wonder whether you followed the instructions on the portableR web page link that you quoted. Do you have the directories referred to there in place? -- Sent from my phone. Please excuse my brevity. On July 25, 2017 7:27:31 AM PDT, Ashish Ranjan <aranjan1645

I'm having problems getting nls to agree that convergence has occurred in a toy problem. nls.out never gets defined when there is an error in nls. Reaching the maximum number of iterations is alway an error, so nls.out never gets defined when the maximum number of iterations is reched. >From ?nls.control: tol: A positive numeric value specifying the tolerance level for the

Hi there, I have installed MS Office 2007 in wine 1.2.2 running in LinuxMint KDE 9, together with other softwares (including GraphPad Prism 4). After install, I set riched20.dll as native (windows), as stipulated here: http://appdb.winehq.org/objectManager.php?sClass=version&iId=4992 > Post Installation Instructions? > > Once installed, one override is necessary. Without it, Powerpoint and Infopath with not sta...

Hi Team, Please suggest me on below :- 1).are There any linux based library for dplyr and tidyr? I could find these r-libraries for windows and Mac but not for linux. 2). is it possible to add external library to portableR zip(http://nafiux.github.io/portableR/) file if yes then how to add external library to poratbleR zip file? In our application AWS lambda invoking the R-script by using

...'m trying to use Robust non-linear regression to fit dose response curves. Maybe I didnt look good enough, but I dind't find robust methods for NON linear regression implemented in R. A method that looked good to me but is unfortunately not (yet) implemented in R is described in http://www.graphpad.com/articles/RobustNonlinearRegression_files/frame.htm <http://www.graphpad.com/articles/RobustNonlinearRegression_files/frame.htm> in short: instead of using the premise that the residuals are gaussian they propose a Lorentzian distribution, in stead of minimizing the squared residus SUM...

Hi Jeff, 1). I have tried install.packages( c("dplyr", "tidyr" ) ) into the r-script file got below error:- > install.packages( c("dplyr", "tidyr" ) ) Installing packages into ?/tmp/1776492876238396447/lib/portableR-master/site-library? (as ?lib? is unspecified) Error in install.packages(c("dplyr", "tidyr")) : This version of R is

1) Definitely yes. They are on CRAN. Just type install.packages( c("dplyr", "tidyr" ) ) at the R console. 2) Don't know, but most likely the answer is yes. Since all R packages on Linux are compiled by R when installed, you either need to activate your virtual machine, compile the packages, and save the state for future use, or you have to build the package library on

...read.csv( file="test.csv", header=T ) drc.preTBS <- drm( response ~ dose, data = mydata, fct= LL.4( names = c( "Slope", "Lower Limit", "Upper Limit", "ED50") ) ) For the data above, I would expect a slope at ED50 to be about 0.0714 (according to GraphPad). How can I determine the slope at ED50 for a Boltzmann fit using DRC or related packages? Thanks much! -Bob (Veterans Administration)

Hi all, I have a distribution, and take a sample of it. Then I compare that sample with the mean of the population like here in "Wilcoxon signed rank test with continuity correction": > wilcox.test(Sample,mu=mean(All), alt="two.sided") Wilcoxon signed rank test with continuity correction data: AlphaNoteOnsetDists V = 63855, p-value = 0.0002093 alternative hypothesis:

In an OpenOffice.org forum someone asked if it was possible to plot some raw data and then add a line for the confidence interval. Example at? http://www.graphpad.com/help/Prism5/scatter%20-%20grouped.png While it may be possible to do this in OOo's spreadsheet program it looks nasty (both to do and the results ) I can do this in R but I'm not good enough that I can produce a fairly seamless function to handle it. This must be a fairly common plot...

Hi all. Sorry for posting again such a topic but I went through previous posts but couldn't find a solution. I use the following code to fit an exponential model to my data. I have 4 different datasets. For 3 datasets nls seems to work fine and I have no error messages. But for 1 dataset I am getting the "world known" singular gradient error. xfit.dNEE <-

I am in a situation where I have to fit a distrution, such as cauchy or normal, to an empirical dataset. Well and good, that is easy. But I wanted to assess just how good the fit is, using ks.test. I am concerned about the following note in the docs (about the example provided): "Note that the distribution theory is not valid here as we have estimated the parameters of the normal

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