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Hm that doesn’t seem to work for me though (see the screenshot below). I tried clearing my cache and two different browsers.
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Here’s the image:
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Basically, I wonder if it could look like this but with a photo added.
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Has anyone subsequently figured out a work around for this? Would really be nice to be able to embed a video in CODAP.
If you don’t set the alignment parameter, is the default always to start the first bin at 0, even if there are negative values in the data? Also, I tried changing the alignment for bins for mammals’ lifespan from 0 to 10, and it gave me a bin of [-10, 10), even though there are of course no negative values for this attribute. I guess that makes sense in a certain way (having equal bins for -10 to 10, 10 to 30, 30 to 50, etc.), but is also a bit weird.
Turns out there is a lot pertaining to the color scale already in Pivotal Tracker:
“Quintile selection doesn’t adjust after hiding selected/unselected”: https://www.pivotaltracker.com/story/show/183831874
“Allow choropleth legend to reflect values in entire dataset even when only a subset is being viewed”: https://www.pivotaltracker.com/story/show/182702665
“Two categories can wrongly get assigned to the same legend color”: https://www.pivotaltracker.com/story/show/158934514
And more here: https://www.pivotaltracker.com/n/projects/1055240/search?q=color%20legend
Thanks for the reply Bill. Maybe this could be changed/improved for CODAP at some point in the future? I should see if there is something about this in the CODAP Software Pivotal Tracker, and if not, add it.
This is what it looked like initially after I did the filtering. All the points shown are in the 10 to 12 bin (and are all highlighted if I click on that bin in the bar in the legend). But, as shown below, if I click on the 12 to 17 hour bin, points for 12 hours only are highlighted too.
Oddly, if I open the link I shared now, the scale is redone and is only 10 to 12 hours, although there does still seem to be an issue of boundary values belonging to more than one bin.
I’m revisiting this topic now because for a project I am working on I took a CODAP file a colleague created with Lyme disease data over the past 15 some years, added a map to it, and then created a slider to show change in Lyme rates from year to year (Bill, I am really indebted here to what you did for the smallpox over the years CODAP file). See the file I made here. I noticed that the minimum and maximum Lyme rate values of course change from year to year, which is a little confusing. I wonder if there might be some advantage to instead displaying something like simply 1, 2, 3, 4, 5 to represent the different quintiles on the color legend? Or I wonder if the quintiles could be set based on the full dataset and not the subset for each individual years (although there may be some cons to this if there is a lot of variation from year to year)? Just thinking/wondering aloud here, but I do think this issue becomes more complicated when instead of a static map there is a slider showing change over time.
