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Adding freezing
To ease into our drawing data step, let's start by adding a circle that shows what temperatures are below freezing.
Let's ease into drawing our data elements by drawing a <circle> to show where freezing is on our chart. We'll want to write this code in our Draw data step.
We can first check if our temperatures drop low enough:
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const containsFreezing = radiusScale.domain()[0] < 32
If our temperatures do drop below freezing, we'll add a <circle> whose radius ends at 32 degrees Fahrenheit.
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