We are happy to announce the posting of the Loglet
Lab 2 source code. Written in Java, you can run it on any platform; with the
source code, you can modify and extend its functions.
What is Loglet Lab?
Loglet Lab is a software package for analyzing logistic
behavior in time-series data.
Processes of growth and diffusion important for environment
often follow a logistic course. In some cases they behave as a
series of logistic wavelets, or "loglets." In the easiest
cases to recognize, a loglet appears as an S-shaped curve or a
succession of many S-shaped curves. When loglets overlap in time,
the overall logistic behavior of a system can be hard to discern
and analyze.
In niches or markets in which several populations or
technologies compete, the growth and decline of each entry also
often exhibit logistic behavior. This behavior depends on
interactions among the competitors. Namely, if a technology's
market share grows, it comes at the cost of shares of others. This
process is well-described by the so-called "logistic
substitution model." Again, discerning and quantifying the
pattern can be hard.
To advance and ease analyses of logistic behavior in time-series
data, we have developed the "Loglet Lab" software
package. Loglet Lab users can fit logistic curves to a single
time-series and apply the logistic substitution model to multiple
time-series.
Loglet Lab 2
Loglet Lab 2 is available at no cost under a BSD license. Go to
the Loglet Lab 2 page for more details.
Loglet Lab 1.x
LogletLab 1.x ("Loglet Lab for Windows") is the older
version of our Loglet Lab software for Windows only. You can
Download the Windows installer here.
Interactive Loglet Applet
Back in January 1998, we made an interactive Java applet
to demonstrate the properties of logistic curves and curve fitting.
It was made to work with the contemporary Windows browsers of the
time, Internet Explorer 4.0 and Netscape 4.06; mileage will vary on
newer browsers and platforms.
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