similar to: integrate function

Displaying 20 results from an estimated 400 matches similar to: "integrate function"

2002 Jun 21
3
generating points over a function, its possible???
Hi, I have a new (for me) situation. I have a function for one linear model: y = 9.7909-0.035*x I have the variance of system var = 13.01403 Is possible to create a random vector points of Y (simulating the real data) over this curve using the function and the variance? I need this to a discipline. I have this: | \ | \ -> y = 9.7909-0.035*x and var = 13.014 | \ | \ | \ | \
2006 Mar 15
1
manipulating weeks dates
Hi, I have these vectors: > WEEK <- rep(c(1:52),2) > YEAR <- rep(c(2000,1999),c(52,52)) How to make a vector of Date with weeks in years? I try as.date from survival package, but it dont work with weeks, just only with days, months etcs. Thanks Ronaldo -- "Realmente minha cidade e muito facultativa" --Elivelton, ao rep?rter da Jovem Pan que falava das muitas
2005 Sep 20
1
Change the mirror
Hi, Please, change the brazilian mirror http://www.termix.ufv.br/CRAN/ to http://www.insecta.ufv.br/CRAN/ in R homepage. Thanks ROnaldo -- Se dois homens no mesmo trabalho concordam o tempo todo, um deles ?? demais. Se discordam sem parar, ent??o os dois s??o dispens??veis --Darryl F. Zanuck -- |> // | \\ [***********************************] | ( ?? ?? ) [Ronaldo Reis J??nior
2003 Oct 14
2
different results depending of variable position.
Hi, I make an analysis and depending of the order of the variables, the significance change, look. m1 <- glm((infec/ntot)~idade+sexo+peso,family=binomial,weights=ntot) > anova(m1,test="F") Analysis of Deviance Table Model: binomial, link: logit Response: (infec/ntot) Terms added sequentially (first to last) Df Deviance Resid. Df Resid. Dev F Pr(>F)
2005 Nov 16
3
Difficulties with for() {while(){}}
Hi, I have the follow function: function() { ## Init of function ... for(i in test) { ... while(j <= test2) { ... } } } The problem is that sometimes, naturally, the while is not possible to be resolved, and so the program abort. In this case I need that program return to the init of function and run again. How I can make this? Abort the while, abort the for
2005 Sep 09
2
best way to fit a model
Hi, I have some data that have this behaviour: | |******* | * | * | * | * |---------------- What is the best and simpler way to fit this in R? Thanks Ronaldo -- Ela pilotava um Continenal 2001 com igni????o autom??tica Magiclic... -- |> // | \\ [***********************************] | ( ?? ?? ) [Ronaldo Reis J??nior ] |>
2003 Oct 14
1
[OFF] Dataset for extra Crawley Chapter
Hi, anybody have the dataset used in Gamma Errors chapter of the Crawley's books (An Introduction to Data Analysis using S-Plus). specifically the functionalresponse and the Density datasets. Thanks Ronaldo -- For every problem there is one solution which is simple, neat, and wrong. -- H. L. Mencken -- |> // | \\ [***********************************] | ( ? ? ) [Ronaldo Reis
2003 Feb 04
2
testing slope
Hi all, I try to test a linear slope using offset. I have: > m2 <- glm(Y~X*V) > summary(m2) Call: glm(formula = Y ~ X * V) Deviance Residuals: Min 1Q Median 3Q Max -2.01688 -0.56028 0.05224 0.53213 3.60216 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.3673 0.8476 1.613 0.119788 X
2003 Mar 21
2
Trying to make a nested lme analysis
Hi, I''m trying to understand the lme output and procedure. I''m using the Crawley''s book. I''m try to analyse the rats example take from Sokal and Rohlf (1995). I make a nested analysis using aov following the book. > summary(rats) Glycogen Treatment Rat Liver Min. :125.0 Min. :1 Min. :1.0 Min. :1 1st Qu.:135.8
2003 May 05
3
Help to make a for for index
Hi, I try to make a vector in a for for loop, but it dont work. Look: > a <- 0;for(i in c(1:2)) { for(j in c(1:2)) { a <- i+j; print(a)}} [1] 2 [1] 3 [1] 3 [1] 4 I try to make this a vector, like this: [1] 2 3 3 4 > a <- 0;for(i in c(1:2)) { for(j in c(1:2)) { a[j] <- i+j}}; print(a) [1] 3 4 > a <- 0;for(i in c(1:2)) { for(j in c(1:2)) { a[i] <- i+j}}; print(a) [1]
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 -
2003 Jun 20
1
glmm and overall goodness of fit
Hi, exist in R any glmm function that have any tools for test for overall goodness of fit? Thanks Ronaldo -- O papel da impressora ? sempre mais forte na parte picotada. -- | // | \\ [***********************************] |> ( ? ? ) [Ronaldo Reis J?nior ] | V [UFV/DBA-Entomologia ] |> / \ [36571-000 Vi?osa - MG ] |
2004 Jun 03
1
[OFF] program to estimate the best fit
Hi, exist in R or any other program for linux that estimate the best fit for data using severals functions? Somethink like tablecurve Thanks Ronaldo -- Um menino-prodigio e uma crianca cujos pais tem muita imaginacao. -- Jean Costeau -- |> // | \\ [***********************************] | ( ?? ?? ) [Ronaldo Reis J??nior ] |> V [UFV/DBA-Entomologia
2004 Nov 09
1
glm.nb stop on Error.
Hi, I make an analysis sequence on R. In some cases the function glm.nb fail to ajust the model. Its Ok. The problem is that this error stop the program. I need treat this error and not stop the program. Something like this: ... model <- glm.nb(y~x,maxit=1000) if(glm.nb fail) { teste[i] <- 0 } else { teste[i] <- anova(modelo)$"P(>|Chi|)"[2] } ... I try this: ...
2006 Jan 23
1
simple problem
Hi, look this: > summary(fam??lia) Anacardiaceae Annonaceae Bombacaceae Cecropiaceae 2 4 1 3 Chrysobalanaceae Clusiaceae Euphorbiacaea Fabacea 1 1 4 3 Fabaceae Flacourtiaceae Humiriaceae indeterminada
2006 Apr 04
1
Problem with Crawley book example
Hi, I try to run the example of Crawley's Book on the page 661, but it fail, look > repmeasures <- read.table("../Packages/Crawley/data/repmeasures.txt",header=T) > attach(repmeasures) > rep <- as.factor(rep) > library(nlme) > model <- lme(height~seed,random=~time|rep/seed) Erro em lme.formula(height ~ seed, random = ~time | rep/seed) : iteration limit
2004 Mar 05
1
Problems with SJava instalation
Hi, I'm try to use the SJava package. The install is OK. In R I have this error message: -------------------------- > library(SJava) Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load shared library "/opt/lib/R/site-library/SJava/libs/SJava.so": libRSNativeJava.so: cannot open shared object file: No such file or directory Error in
2005 Oct 22
2
simple question
Its just a simple question I guess: I have a vector with missing information like x<-c(0,1,31,131,NA,133,NA,310,NA,112,3,1,2,93) How can I make a vector like this no missing in it. I used the x[x<0] commabd and tried some more, with no success. thx Korbinian
2003 Aug 27
1
how to calculate Rsquare
I think you've badly misinterpreted the purpose of the R listserv with this request: https://www.stat.math.ethz.ch/mailman/listinfo/r-help says "The `main' R mailing list, for announcements about the development of R and the availability of new code, questions and answers about problems and solutions using R, enhancements and patches to the source code and documentation of R,
2003 Apr 28
1
[OFF] File name completation on XEmacs+ESS.
Hi, I try to make a key alias to XEmacs+ESS function Complete File Name. But I dont know the name of this funcion. Anybody know how this funcion is call? (global-set-key "\C-tab" 'name of the function Complete File Name) Thanks for all Inte Ronaldo -- To beer or not to beer. -- ShakesBeer -- | // | \\ [*****************************][*******************] ||