I just wanted to remind the group that I am doing research on
visualization
techniques for stock market data.

I decided to try to come up with some new ways of representing "bars"
or interval data with more than just the Open, High, Low, Close, and
Volume.

http://home.att.net/~geoffrey.slinker/maverick/VolumeBars.html

I am wondering what Technical Analyst think about the approach.
Remember, I am a software engineer, not a technical analyst.

Since volume often precedes trend changes it is considered important
to see a break down of the volume on a price basis for the interval.

If you consider figure 5 of (
http://home.att.net/~geoffrey.slinker/maverick/VolumeBars.html )
please notice the first interval.

We can see that for the price range of the interval the volume of the
prices make a pattern that looks somewhat like a woman's figure.
Shoulders, waist, and hips (Somewhat) Most of the volume for this
interval was around the shoulders and hips.

Look at the next interval and the high has very little volume. The
pattern looks somewhat like a "spinning top" where it is narrow at the
top, wide in the middle and tapers down to the bottom. I propose that
this is a good indicator which shows the majority of the trades
happened near the low and not near the high.

Let's skip the third interval and look at the forth.

Notice that the majority of the price volume is in the middle. Just
from "eyeballing it" it looks like there were 11 distinct prices
during the interval. The majority of the shares sold in the middle
prices of the interval.

Continuing with figure 5 look at the last interval.

This pattern is has the majority of the price volume at the bottom.
Clearly prices around the low were the majority during this interval.

Please note that when I talk about patterns I am not talking about
patterns that are indicators to buy or sell. I am just a Computer
Scientist. The patterns I refer to are quick ways to visually identify
where the volume is during an interval. Some terms might be "hour
glass" where the volume is mostly at the top and bottom. It is just a
way to describe the volume, not a way to predict future prices. I am
not selling snake oil. Just visualizing data.

Regards,
Geoff Slinker