Displaying 3 results from an estimated 3 matches for "software_".
Did you mean:
software
2004 Apr 14
1
How does nlm work?
Dear R users,
I have looked in the reference
Schnabel, R. B., Koontz, J. E. and Weiss, B. E. (1985) A modular
system of algorithms for unconstrained minimization. _ACM Trans.
Math. Software_, *11*, 419-440.
cited in the nlm help.
This article says that the algorithm permits the use of step selection
(line search, dogleg and optimal step), analytic or finite diference
gradient and analytic, finite diference or BFGS Hessian aproximation.
Looking back in the nlm help, it has the info...
2011 Jan 20
2
Regression Testing
I'm new to R and some what new to the world of stats. I got frustrated
with excel and found R. Enough of that already.
I'm trying to test and correct for Heteroskedasticity
I have data in a csv file that I load and store in a dataframe.
> ds <- read.csv("book2.csv")
> df <- data.frame(ds)
I then preform a OLS regression:
> lmfit <- lm(df$y~df$x)
To
2011 Jan 22
0
how to call BayesX in R to see the graph
...cal but the first thing the
> "Details" section does is: It points you to some references that
> should be easier to read. I recommend starting with
>
> Zeileis A (2004), Econometric Computing with HC and HAC Covariance
> Matrix Estimators. _Journal of Statistical Software_, *11*(10),
> 1-17. URL <URL: http://www.jstatsoft.org/v11/i10/>.
I will look into that.
Thanks,
Mojo
------------------------------
Message: 21
Date: Fri, 21 Jan 2011 15:13:27 +0100 (CET)
From: Achim Zeileis <Achim.Zeileis@uibk.ac.at>
To: Mojo <mojo@sispyrc.com>
Cc:...