similar to: Calibrating the risk free interest rate using nlminb

Dear R-users I need to calibrate kappa, rho, eta, theta, v0 in the following code, see below. However when I run it, I get: y <- function(kappahat, rhohat, etahat, thetahat, v0hat) {sum(difference(k, t, S0, X, r, implvol, q, kappahat, rhohat, etahat, thetahat, v0hat)^2)} > nlminb(start=list(kappa, rho, eta, theta, v0), objective = y, lower =lb, > upper =ub) Error in dots[[1L]][[1L]] :

Hi I have created the following plot over the empirical returns.. What I now want to do is to overlay a curve/line with the normal density as a comparison of the two. Does anyone know how to do this? (NB the last two lines are the problem, and are wrong, I know). Thank you in advance! Rikke http://r.789695.n4.nabble.com/file/n3768783/S%26P_500_spot_and_return_2010.csv

I'm testing out quantstrat using a simple one-indicator strategy. The error I get after applyStrategy(...) is Error in .xts(e, .index(e1), .indexCLASS = indexClass(e1), .indexFORMAT = indexFormat(e1), : index length must match number of observations In addition: Warning messages: 1: In match.names(column, colnames(data)) : all columns not located in roc_15 for STOXX.Open STOXX.High

Hi All, I'm still pretty new to using R - and I was hoping I might be able to get some advice as to how to use 'apply' or a similar function instead of using nested for loops. Right now I have a script which uses nested for loops similar to this: i <- 1 for(a in Alpha) { for (b in Beta) { for (c in Gamma) { for (d in Delta) { for (e in Epsilon) { Output[i] <-

My new MGE Ellipse Premium 1200 is now working fine. I've tested pulling the plug and the computer shuts down properly and comes back up when I replug. The only strange behaviour is that when I put the power back on the battery shows as being at 86%. If it was at 86% it should have lasted longer. Is there any calibration step I can do? The only commands the ups seems to support are: $ upscmd

Hello, Kindly assist. I have an issue with Centos Touch screen. The usb mouse is working but touch screen is not working even after reinstalling centos. Kindly assist on how I can calibrate my screen. Hardware:Beckhoff Screen Centos Version: Centos6

Hello! I'm having an echo problem with a TDM card. The TDM card is being fed by a channel bank just 12 or so feet away. When you put an analog handset on the line, both the RX and TX volume seem to be just fine. However, when I use the TDM card, I have to have an rxgain of 13.5, and even then, the audio is relatively quiet. I'm also getting echo on these lines, so I have turned

I put header=TRUE and sep = “;” and my problem was resolved. read.csv("./scoreDb.csv",header = TRUE,sep=";" Best Regards, Sandro [[alternative HTML version deleted]]

Hi everybody, Got some doubts here. I'm kinda desperate for help, so please ask me if anything isn't clear. I have a database with this structure (panel data structure): > head(dados_2) Tempo Safra Data Resposta Perc_Resg_Acum Alta_Temporada Flexi Promo 1 1 1 200701 0.04223216 0 1 0 0 2 1 2 200702 0.02801536 0