Use D3.min To Find Lowest Value That Is Not 0
I'm trying to use D3 to find the lowest value in my dataset. However, I also have values that are 0, but I want D3 to find the lowest value that is not 0. Currently I am using: d3
Solution 1:
You can use the constant Infinity
, since Math.min(Infinity, someNumber)
always return someNumber
(unless someNumber
is also infinity). So it'll look like this:
smallest = d3.min(data, function(d) {return d.houseValues || Infinity; })
If needed, you can check smallest == Infinity
, which would be true
in the case that all house values were 0.
Solution 2:
Try filtering the data to remove zeroes first, e.g.
var noZeroes = data.filter(function(d) { return d.houseValues !== 0; });
d3.min(noZeroes, function(d) {return d.houseValues; })
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