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Hi Could you please inform how can I get the Nash-Sutcliffe coefficient in r? Comparing observed vs. simulated values. Appreciated -- Ahmed M. Attia Research Assistant Dept. Of Soil&Crop Sciences Texas A&M University ahmed.attia at ag.tamu...

Dear R users, How can I customize x axis in a boxplot? xaxt="n" to suppress x axis, but I would like to customize x axis for different groups. Thanks -- Ahmed M. Attia Research Assistant Dept. Of Soil&Crop Sciences...

Dear R users, Can I add a text to a plot without x axis? I saw a function that enables placing the text with mouse text(location, "text to place", pos, ...) locator(1) but it did not work out. -- Ahmed...

Dear All, I'm a beginner user in R and I would like to make a quadratic and plateau model in R. Can you help please with an example? Thanks so much -- Ahmed M. Attia Assistant Lecturer El-Khattara farm...

I have a problem with the graphic functions in the ade4TKGUI graphic user interface in R. I want to reset the label size and boxes options, but get this error message Error in (function () : object 'pmvar' not found or this...

Hi R users, I need your help to write a code in r that does the following calculation from three different datasets; ac = 1/sum (NPP from date 1 to date 2, dataset=1) * (biomass at date 2 -biomass at...

Hi R users, I would like to adjust the pch size in a legend without changing the text size, pt.cex does not do the job. R 2.15.2 32 bit. legend(0,2100, legend=c("2009","2010","2012...

LSD-test produces error for this code; code <- as.factor(Rotationdata_R$`Rot/code`) #factor in the main Nitrogen <- as.factor(Rotationdata_R$Nitrogen) #factor in the sub Rep <- as.factor(Rotationdata_R$REP) #blocks Year <- as.factor(Rotationdata_R...

Hi folks, I have 25 stand height observations over 7 years period and daily leafbiomass data during this period. I want to use the 25 plant height observations as inputs and predict the daily stand height during the 7 years...

The model should be class aov or lm and my model class is aovlist. tried tidy from broom library but did not work. To make it class aov, I had to remove the error term; model <- aov(Rotationdata_R$`GY...

Dear R usres, Sorry to bother you with my basic question. I have a quick question about tick mark in R. A reviewer wants the tick marks of the graph to start at 0:0 point. My current code below...

Hello R users, The code below is for loop in R that I want to do to following calculation at each time i and i-1 in 2:75 dataset (Litterfall_Ahmed97). ac = ((LeafBiog at date i -LeafBiog at date...

---------- Forwarded message ---------- From: Ahmed Attia <ahmedatia80 at gmail.com> Date: Tue, Sep 17, 2013 at 11:17 AM Subject: axis lab font in r To: r-help-request at r-project.org I have an a question about the axis...