Displaying 2 results from an estimated 2 matches for "datatilluppsats".
2008 Sep 19
1
Cbind help
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
2012 Apr 16
1
for help
...oblem 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 <- garchFit(formula =garch(1,1),...