search for: irrig

Displaying 20 results from an estimated 52 matches for "irrig".

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2009 Jul 30
0
randomized block design analysis PROBLEM
...licates and 3 blocks. The treatments are: -T1 = COD (300 mg/Lit) COD=chemical oxygen demand -T2 = COD (200 mg/Lit) -T3 = COD (100 mg/Lit) -T4 = COD (0 mg/Lit) as a control The experiment is conducted during three months and a sample is taken each Week in every experimental unit. At the first, I irrigated all soil columns (12 columns) with demonize water for 1 week. Then during 8 weeks, I irrigated all columns with waste water with different concentration. Then, gain, I irrigated all columns with demonize water for 4 weeks. Now I want to know how I can analyses the results in R. For example,...
2005 Oct 24
3
lme and lmer syntax
Hi, I have this: lme(y~x1+x2,random=~1|x1/x2) How to make this random effect using lmer? I try this: lmer(y~x1+x2+(1|x1/x2) But it dont work. Any idea? Thanks Ronaldo -- System halted! -- |> // | \\ [***********************************] | ( ?? ?? ) [Ronaldo Reis J??nior ] |> V [UFV/DBA-Entomologia ] | / \ [36570-000 Vi??osa -
2005 Jun 02
0
How to calculate the correct SE in a nested or spliplot anova?
...rms: Residuals Sum of Squares 381 Deg. of Freedom 18 Residual standard error: 4.600725 > -------------------- I need to make a barplot with error bar for treatment. How to calculate the correct SE? SplitPLot example: -------------------- > m <- aov(yield~irrigation*density*fertilizer+Error(block/irrigation/density/fertilizer)) > m Call: aov(formula = yield ~ irrigation * density * fertilizer + Error(block/irrigation/density/fertilizer)) Grand Mean: 99.72222 Stratum 1: block Terms: Residuals Sum of Squares 194.4444 Deg. of Freed...
2005 Apr 25
2
residuals in lmer
Does anyone know how to extract residuals in lmer? Here's the error I get: > crop.lme=lmer(response~variety*irrigation*pesticide+(1|rep)+(1|rep: pesticide)+(1|rep:pesticide:irrigation), crop.data) > qqnorm(crop.lme) Error in qqnorm.default(crop.lme) : y is empty or has only NAs > resid(crop.lme) NULL Thanks! --Jake
2006 Nov 22
1
differences between aov and lme
Hi, we have a split-plot experiment in which we measured the yield of crop fields. The factors we studied were: B : 3 blocks I : 2 main plots for presence of Irrigation V : 2 plots for Varieties N : 3 levels of Nitrogen Each block contains two plots (irrigated or not) . Each plot is divided into two secondary parcels for the two varieties. Each of these parcels is divided into three subplots corresponding to three ordered levels of nitrogen. We found in V...
2009 Jul 28
1
Fwd: randomized block design analysis in R
...es and 3 blocks. The treatments are: -T1 = COD (300 mg/Lit) COD=chemical oxygen demand -T2 = COD (200 mg/Lit) -T3 = COD (100 mg/Lit) -T4 = COD (0 mg/Lit) as a control The experiment is conducted during three months and a sample is taken each Week in every experimental unit. At the first, I irrigated all soil columns (12 columns) with demonize water for 1 week. Then during 8 weeks, I irrigated all columns with waste water with different concentration. Then, gain, I irrigated all columns with demonize water for 4 weeks. Now I want to know how I can analyses the results in R. For example, I...
2005 Oct 26
1
R-help Digest, Vol 32, Issue 26
...better confidence intervals (credible intervals, whatever) by using the mcmcsamp() function that works with lmer() alan > "Doran, Harold" <HDoran at air.org> responded: > > >>There is an issue with implicit nesting in lmer. In your lme() model you nest >>block/irrigation/density/fertilizer. In lmer you need to do something like >>(I dind't include all of your variables, but I think the makes the point) >> >>lmer(yield~irrigation*density*fertilizer+(1|fertilizer:density)+(1|density), data) >> >>Which notes that fertilizer is ne...
2011 Jan 11
1
sorting question
...), ] This should be simple, I guess, but I've been staring at this a bit too long now. Suggestions anyone? TIA! Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2010 Jul 22
1
check menu button (tcltk)
...//zetcode.com/tutorials/pygtktutorial/images/checkmenuitem.png   Does anybody know how to do this? I am quite new to R. Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2010 Apr 29
1
UpdateLinks = FALSE
...would be to access the formula representation (as a string) and use a nifty regular expression.   Thank you in advance. Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2011 May 04
2
first occurrence of a value?
...subfn("^[^0-9]+", "", names(df)[1])) ) } df$year2 <- sapply(x, giveYear) Thanks in advance! Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2010 Apr 19
1
Equivalent to Python os.walk?
...I don't want to reinvent the wheel.   Thank you. Cheers!! Albert-Jan   *) http://www.saltycrane.com/blog/2007/03/python-oswalk-example/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2011 Feb 03
1
mapply question (?)
...configuration file (I'm thinking about using yaml), although this might at this point not yet be relevant. TIA! Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2011 May 03
1
Rodbc quesion: how to reliably determine the data type?
...instance, the first n records contain numbers, and later they also contain characters, those characters become NA. Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2011 Sep 06
1
list of all methods winthin an S4 class
...doc__', '__module__', 'some_method_1', 'some_method_2'] >>>   Thanks in advance! Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2010 Apr 21
1
VERY basic question about S4 classes
...prints '10' myMethod2(instance) # ERROR: is supposed to print '20' Thank you in advance for your help! Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2010 Apr 27
1
sprintf() and return() oddity
...> x <- function() { a <- 888 + sprintf("xxx %s", a) + return(a) } > x() [1] 888 Is this a bug? Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2010 May 20
1
getSubClasses()?
...r class definitions. I've seen functions that somewhat resemble it, but are not quite the same. Thanks in advance! Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2010 Jul 21
1
fix()ing an S4 method
...uot;, object@text)))  }) fix(doStuff) # Does NOT give the intended result. How can I make R show the method definition? Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]
2010 Jul 26
1
OOP module
...ambers & Temple Lang) is going to replace the the S4 (and the S3) class system? http://www.omegahat.org/OOP/oop.pdf Cheers!! Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [[alternative HTML version deleted]]