Tinn-R Error At Startup

(on WinXP)
When trying to connect to R or RGui with Tinn-R, one may get the following error: 

Die Anweisung in "0x00000000" verweist auf Speicher in "0x00000000". Der Vorgang "read" konnt nicht auf dem Speicher durchgeführt werden.

(Basically: The instruction in "0x0" referes to memory segment "0x0". The process "read" could not be executet on the memory.)

In my case, for some odd reason, this was resolved selecting the compatibility option "deactivate visual desings" ("Visuelle Designs deaktivieren) . I.e. right click the application executable or shortcut and selecting Properties. The setting can then be found in the "Compatibility" Tab.

R - Open Source Statistics

[Intro Article.. R pretty much rocks. www.r-project.org , needs better GUI. ]

Basic Matlab Function Equivalents:

Matlab	R	Description
ones(n,m)*a	mat.or.vec(n,m)*a	initialize matrix with values
rand(m)	runif(n,min,max)	n float random numbers between min&max.
	sample(min:max,n)	picks n elements of the data given as first argument (i.e. integers!)
reshape(a,[n,m..])	matrix(a,nrow=n,ncol=m)	reshape data structure into a matrix
for i=1:30     op(i); end	for (i in 1:30); {     op(i); }	for loop!
function [x y z] = uvw(a,b,c=3)     op(a,b,c); end	uvw<-function(a,b,c=3) {     op(a,b,c); }	function definition
a = [];	a <- matrix(nrows=0,ncols=3)	how to init a matrix to be grown dynamically
a = [b;c;d];	a <- rbind(b,c)	concatenate matrix vertically
a = [b,c,d];	a <- cbind(b,c,d)	concatenate matrix horizontally
..	..	..

Google Earth: Move Camera to certain Viewpoint

Problem:
How do I move the camera to a certain viewpoint, given as [world coordinates, height, azimuth and elevation] in Google Earth?

I recently had to re-stage some perspective aerial photos, knowing the location and height of the plane, as well as the viewing direction. Unfortunately, the Google Earth (5.0) UI does not seem to offer a possibilty to just enter those viewpoint parameters.
Now, the trick is to use placemarks: set a placemark somewhere and open its properties dialog.
In this dialog, we can enter the exact coordinates, azimuth and elevation. So far so good, but it's not yet perfect:
We can also specify the height in this dialog, but this will only move the placemark up in the air - not our viewpoint! The camera will always hover around the projection of the placemark on the ground level. But again there is a dodge to get this working:
Save your viewpoint as KML (plaintext), and open it with a text editor. You will see the xml-structure of the KML file, containing all the information about our placemark including the viewing direction:

<?xml version="1.0" encoding="UTF-8"?>
<kml ...>
<Document>
    <name>aerialviewpoint.kml</name>
    <Placemark>
        <name>my point in the air</name>
        <open>1</open>
        <LookAt>
            <longitude>8.765</longitude>
            <latitude>47.474</latitude>
            <altitude>1000</altitude>
            <range>1</range>
            <tilt>85</tilt>
            <heading>120</heading>
            <altitudeMode>absolute</altitudeMode>
        </LookAt>
        <Point>
            <extrude>1</extrude>
            <altitudeMode>absolute</altitudeMode>
            <coordinates>8.765,47.474,1000</coordinates>
        </Point>
    </Placemark>
</Document>
</kml>

Here we can change the height of the viewpoint (field altitute in the -Tag) to our desired height. Then save and reopen the KML file with Google Earth, where we will fly directly to this viewpoint. []