search for: uplim

...) # Perform nonlinear regression require(nls2) nlsmodel <- nls(v1~a0 + a1*v2 + a2 *sin(2*pi*v2/365.25),data=datalist,start=startvalues, trace=TRUE) # Fitted data and prediction interval fitted <- predict(as.lm(nlsmodel),se.fit=TRUE,interval="confidence",level=0.95) uplim <- fitted$fit[,3] return(uplim) } -- View this message in context: http://r.789695.n4.nabble.com/Need-help-with-self-defined-function-to-perform-nonlinear-regression-and-get-prediction-interval-tp4654430.html Sent from the R help mailing list archive at Nabble.com.

Dear R users, When I use two functions, 'optim' and 'integrate', simultaneously, I always get an error like this -------------------------------------------------------------------------- numint = function(z) { dlnorm(z,mu[1],sqrt(exp(g[1]))) * dnorm((z-mu[2])/sqrt(exp(g[2])))/sqrt(exp(g[2])) } integrate(numint,lower=0,upper=Inf)$value Error in integrate(numint, lower = 0,

hello, ladyes and gentlemans. check this: means<-c(4,6,8) stand.error<-c(0.1,0.3,0.5) now i've strongly tryed to scatterplot the means(y-axis),by showing their sd with the arrow(..,code=3,angle=90) function. The problem is that my x-axis has categorical values (say, factor(x)), and the arrows() can't recognize them as right coordinates. ????? thank you all in advance B.F. insubria

...iable from the cor.test results to a numeric data type, as it is passed into the new dataframe? For example, 'estimate', 'p.value', and 'conf.int' should be numeric not character. Second, I would like variable 'conf.int' to be two variables, 'lowlim' and 'uplim'. Many Cheers, Keith ## Create sample dataset WW_Wing_SI <- structure(list(Individual_ID = c("WW_08A_02", "WW_08A_02", "WW_08A_02", "WW_08A_02", "WW_08A_02", "WW_08A_02", "WW_08A_02", "WW_08A_02", "WW_08A_...