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Here is the beginning of my function:

    d3.csv("Sales Export Friendly 2-14-2017.csv", function(data) {      
    sales = data.map(function(d) { return +d.bookingID, +d.totalPaid ; });

I am wondering why despite my best efforts, I can't get the columns with headers "bookingID" and "totailPaid" from the csv file into an array of 2 columns which I can select with sale[0] and sale[1] later in the function as so:

var x = d3.scaleBand()
    .domain(sales.map(function(sale){ return sale[0]; }))
    .range([0, width])
    .paddingInner([0.1])

var y = d3.scaleLinear()
  .range([height, 0])
  .domain([0, d3.max(sales.map(function(sale){ return sale[1]; }))]);

I read this Q&A: Array map returning array of undefined when should return array of objects but am still having issues

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    Look at your last question. You have to put the square brackets: sales = data.map(function(d) { return [+d.bookingID, +d.totalPaid]; }); Commented Feb 18, 2017 at 1:25
  • I still get an of arrays with all (2) undefined values Commented Feb 18, 2017 at 1:59
  • 1
    Please copy your CSV structure (just the first couple of rows is enough). Keep in mind that bookingID and totalPaid are two headers that I created for my bogus data in your last question. You have to use your headers. Commented Feb 18, 2017 at 3:11
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