search for: osvald

Hi everybody, I am sorry that I am kind of spamming this forum, but I have searched for some input everywhere and cant really find a nice solution for my problem. Data looks like: price 2011-11-01 08:00:00 0.000000000 2011-11-01 08:00:00 0.000000000 2011-11-01 08:02:00 0.000000000 2011-11-01 08:03:00 -0.017033339 2011-11-01 08:13:00 0.000690001 2011-11-01

Hi there I want to cbind a vector(contains 20 values) to a dataframe containg (18 rows).The missing value in the dataframe is however a repeated values but still i want to retain the repeats in the vector and the dataframe values can even get enterd twice. how should i go about it Example: Vector(contains repeating entry) ab de dc ab be dataframe(unique entry) ab a b c d e dc e f g h i de l

...i, we have a problem concerning the use and forecasting on the GARCH (1, 1) on financial data. We would like to make predictions on future returns in a loop which moves the window of estimation forward one unit for each iteration. Our code is as follows: > BJORN <- read.table("C:/Users/Osvald/Desktop/DATATILLUPPSATS.txt", + header=TRUE, sep="\t", na.strings="NA", dec=",", strip.white=TRUE) > t <- as.timeSeries(BJORN) > start=length(t[2:1834]) > end=length(t) > fore = array(0, dim=(end-start)) > for (i in start:end) { +fit <- garch...

My intention is to give a presentation about R programming language for software developers. I would like to ask, what are the things that make R different from other programming languages? What are the specific cases where Java/C#/Python developer might say "Wow, that was neat!"? What are the things that are easy in R, but very difficult in other programming languages (like Java)?

Btw, in the earlier mail i forgot to mention what the error message was. The R console tells us that: "Error in matrix(0, ncoef, ncoef) : invalid 'nrow' value (too large or NA)" before it has done any estimations. i couldnt attach the data in the mail, so i write it manually in text. Datum Kurs 2004-12-21 -0,001648178 2004-12-22 -0,008336043 2004-12-23 -0,010219165 2004-12-27 0