I’m using aggregate to collect pendulum timing data from a class. Here are some questions I have:
How can display the data so that students can copy/paste the data for later use? Apparently, you can’t pull a desmos table or list INTO the paste buffer…
When I show two histograms of overlapping distributions on the same graph, the areas of overlap are hard to read. I want students to see both histograms distinctly and simultaneously. Is there a way to show the two “stacked” histograms- perhaps on one graph by shifting one vertically or reflecting it across the x-axis? Or perhaps in two resized graphing windows?
You can add the max value of one list to the other for its histogram, effectively shifting right by the max value. Here’s a sample. I added an additional unit to have a separation between the histograms. I also removed the x-axis labels in order to manually insert a set for each histogram.
What you propose shifts the graph horizontally- not vertically. I’d like students to see two overlapping distributions simultaneously to visually compare central tendency and spread.
I found a solution to problem #1 above. It’s not very elegant, but it works. It uses “elementAt” to list the first twenty elements on the list: Here’s the CL from the Note:
A=aggregate(GetTTop.numericValue)
content: "Here’s a list of the first twenty data points from the class. All times are in seconds:
Along the way, I noticed that there might be an (undocumented) sink for Note called exportNumberList. Does anyone know what exportNumberList does and/or have an example to share?
You could display a histogram for list 1 and a histogram for the combined lists. There doesn’t seem to be a way to mess with the overlay or opacity, which I think would make it more like what you’re looking for.
You can get frequency counts like this, and then make your own histograms using something like in this thread:
Thanks, Daniel. I think I will build my own “reflected” histogram using the tools you’ve pointed to. Nice to learn about join, sort and unique operators. Hadn’t seen those yet…