Monday, April 03, 2006

Presentation of Data: Examples

Following my post on Ed Tufte and the presentation of data I remembered these graphics from Toro Magazine (a wannabe Vice-type mag that comes with the Globe and Mail).

I can't remember ever seeing a pie-chart in a physics talk, but pie-charts are a staple in low-brow business pitches and pseudo-technical presentations, along with non-ironic use of Comic Sans and mortifying clip-art.

So for my talk last week, I really regret not working in a gratuitous pie-chart displaying some completely inane data; the only purpose it's really suitable for -- but given the (lame-o) state of my research I wasn't feeling too cocky either.

...and below is one of my fave types of graphics, a phase-space plot. These plots are really illustrative (seriously), and I think science people should use them more often.

Someday I will have to get off my ass and figure out how to get Matlab to plot words in a 2-D plot.

Labels: ,

13 Comments:

Blogger Barry said...

You would have to be a bigshot to put a pie chart into a physics talk. If you or me showed up at a conference with a pie chart, we'd get laughed out of the room.

Dynamical data (lot of that in physics) can't really be shown on a pie or bar chart, or any of those types of charts that biz types like to use.

3:02 AM  
Blogger Amit said...

first off, what do you even mean by "dynamical data". there are all sorts of data in physics, not just the y=f(x) type.

i actually think there are non-laughable uses for a pie chart, it shows how something gets partitioned. but it wouldn't occur to physics peeps to use a pie-chart since it's not in the canon of physics plots, they'd just make a table or something.

11:38 AM  
Blogger Barry said...

"dynamical data" = tracking how something evolves in time. If you've got four time points (usually not the case), then sure, a bar graph can be striking and effective. But it won't work with a pie chart. Both types are mainly useful for comparing the magnitude of a small number of quantities (i.e. gross sales in 2002 vs 2005), which also doesn't happen too ofen in physics.

There are definitely non-laughable physics uses for a pie chart, I'm just saying that you and me couldn't easily get away with it. If we were preparing a talk we'd go with the safe choice and write up a table to display that very same info.

1:17 AM  
Blogger Ian said...

a pie chart of t tbar branching ratios gets shown in like 90% of all top quark physics talks:

http://www-d0.fnal.gov/Run2Physics/displays/top/branching_pie_illus.gif

1:31 AM  
Anonymous the green bicycle said...

amit, I'll race you to who can show a pie chart in an atmosp talk first.

10:24 AM  
Blogger Amit said...

b: that's called a time series or what i meant by y=f(x).

i: i know pie charts are used for chemical and particle reactions where there's many products. i could also use them to show partition of energy.

l: do it at cmos. if anyone's not afraid to do something like that it's you. i gave a talk titled 'Click to add title', ie. i didn't change the powerpoint default title.

12:47 AM  
Anonymous Anonymous said...

Cellulite is an unsightly dimpled appearance, especially around the thighs.
A cellulite reduction treatment using a soft bristled body brush ($10) to brush the treatment areas
where reduction is desired. The best way of dealing with cellulite & stretch marks ( is by choosing a treatment
option and sticking to it.

Also visit my weblog; Strecth marks

12:08 AM  
Anonymous Anonymous said...

If you are among those People who need to invest their money in something tangible in Uganda Don.
Here are some suggestions on how to get started and keep going in this often overlooked photographic field.
Simple definition: Buying property and reselling quickly, hopefully for a great profit.


Here is my webpage; asunto vuokra

1:31 AM  
Anonymous Anonymous said...

Checking out new places will almost always be a bunch
of fun for kids and this will give them the
opportunity to explore away from your own community

Here is my blog: http://sixflagsticketscoupons.com/six-flags-st-louis/

2:39 PM  
Anonymous Anonymous said...

"It came back down and I seen the cable come back and hit a lot of people and I heard a lot of crying

Here is my web-site: http://www.sixflagsticketscoupons.com/six-flags-magic-mountain/

2:39 PM  
Anonymous Anonymous said...

Cellulite is an unsightly dimpled appearance, especially around the thighs.
For a faster and reliable result, skin care
professionals may recommend these therapies that are less-invasive to the body.
Activity and healthy diet will help one retain firm skin tone but it can’t guarantee that cellulite won’t
appear.

Also visit my website: Stretch mark removal

12:39 AM  
Anonymous Anonymous said...

Always ensure you choose a method that is proven to remove skin
tags without causing adverse effects and scarring. For extra guidelines, facts and goods about how
to get rid of acne please see this writer Bio below:.
Make certain that the information you get is
genuine in order that you can effectively do away with your warts.



Have a look at my web-site; Skin tags removal

4:44 PM  
Anonymous Anonymous said...

These oils have been tested and proven to be effective against a variety
of warts. Touching your chin frequently will transfer these
germs and dirt to the chin area which may result in acne on chin.

There are a wide range of self tanners to choose from at department stores, but why not treat yourself
to a spray tan at your nearest tanning salon.

Feel free to surf to my website; How to get rid of skin tags

4:44 PM  

Post a Comment

<< Home