Michelle Wilkerson

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  • in reply to: Sorting"case value" plots #1285
    Michelle Wilkerson
    Participant

    Hi CODAP friends,

    I see I’m reopening a year-old topic, but we just had a similar experience yesterday. One student wanted to “sort the x axis by the y axis” – something like a Pareto histogram, where (in this case, many) categorical variables on the x-axis are organized so that the quantitative variable on the y-axis descends from left to right. It wasn’t obvious to me how they could do this easily, other than manually dragging the categorical variables around.

    I just wanted to add another data point to this being a feature that could be useful. We also tried the table sorting method described above (another student sitting next to this one proposed it). The student was working with CODAP for the first time when they suggested wanting to make this particular move, and I was a bit hesitant to pull up the attribute formula interface and clunk my way through it, but I will show that to the student next time I see them.

    in reply to: Glitch in Connecting Lines Tool? #431
    Michelle Wilkerson
    Participant

    Thanks, Jonathan. We are able to get the connecting lines to show up if we select it after adding the attribute to the right side, so we’ve been doing that.

    We’ve has a need for connecting lines pretty frequently, to examine how two attributes change together over time (for example, reservoir levels and snowpack data during the California drought, where there is a lag of cycles as snowmelt moves to the reservoirs). We’ve found the connecting lines to be critical for when you want to compare attributes with different sampling rates – weekly reservoir levels, but monthly snowpack measures. We sometimes do create two graphs, but are using chromebooks in the classroom so fitting both graphs on the screen and still seeing details of their shapes is difficult.

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