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Mac

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Reply with quote  #1 

Good morning, turning on the net I found this site where there are a few examples of data visualization. In particular, I appreciated this day radial graph where in a single graph are mapped a lot of information.
This template could be used in other contexts such as the performance of a database that supports many Data Warehouse ETL processes in order to study the correlation between parameters such as the use of CPU / Memory / Disk /etc along a day.
What do you think about it?

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sfew

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Reply with quote  #2 
Mac,

Notice that by arranging these data as an arc, they are much harder to read and compare than they would be if they were displayed in a straight linear arrangement. Can you see any reason why an arc was used in this case, other than to make it look cool, despite the complications that were introduced in doing so?

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Stephen Few
Mac

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Reply with quote  #3 
When you deal with a time range the circular (or arc) representation could be more familiar and intuitive because the looks like a clock, but this is a subjective point of view. Regards
sfew

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Reply with quote  #4 
An arc, however, doesn't look like a clock. Even if it did, the loss in our ability to decode and compare values could rarely be justified by the meager benefit associated with the clock-like shape.

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Stephen Few
jlbriggs

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Reply with quote  #5 
This could be such a straightforward visualization.

It's really annoying how so many companies feel they need to pay someone to complicate the data in order to display it.

Not only is it absurd trying to compare usage throughout the day, you have to click on a seemingly unrelated icon in order to see what the different colors represent, and the grey area series remain undefined.

This set is not as bad as GE's energy source comparison set by McCandless, but it is frustrating nonetheless.

PeterRobinson

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Reply with quote  #6 
Perhaps if a portion of time were arranged in an arc, using the same relative positions as on a clock face, it might look like a clock but that is not how time has been distributed across the arc in this example in which the arc would show about an 8 hour interval 8am to 4pm or 8pm to 4am but shows a full 24 hours.

Adding the non-intuitive distribution of time to the already curved layout just makes it even harder to interpret what should have been a straightforward linear display.



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Peter Robinson
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