Applet Demos for JSM 96 Talk
Note A much improved and comprehensive
set of tools will soon be posted.
This page contains a few of the Applets I've developed in JAVA. The
graphical stuff is based on Leigh Brookshaw's Graph2D
class. The complete code is
available if you are interested.
Caution I've checked these applets on Unix/X11
platforms. However, I do find that the DOS and Mac platforms sometimes
srew a few things up. Try getting the latest version of Netscape.
The first example
demonstrates how one can use the distribution objects to fool around
with parameters of various distributions.
The example shown has three applets running concurrently. The first
allows one to vary the parameters of the normal density using
sliders. The second shows how one can shade certain parts of the
graph: the empirical rule is demonstrated. The third is basically an
application of the empirical rule with some values highlighted.
This example demonstrates how the
T distribution approaches the normal for large degrees of freedom.
This example shows how one can
produce plots using a URL. This example accepts a URL and plots a
normal quantile plot. The data is actually a list of 30 normal
variates from Lisp-Stat.
This Example allows one to find the
probabilities under the density curve. It also shades the appropriate
Example 5 shows a plot of a binomial
pmf with sliders for changing the parameters.
Example 6 is a futuristic one; futuristic,
since some aspects remain undone. It shows a page with a tool bar
which presents a student with a bunch of software tools for doing
computations. The tool bar only provides statistical tables and a
calculator for now, but more will be added in the future.
I hope that such "workbook" pages will become useful in education
leaving us more time in class to concentrate on conceptual ideas.
Last modified: Wed Dec 2 10:30:29 PST 1998