How to excluded y=0 points in a chart by using d3.js?
How to excluded y=0 points in a chart by using d3.js?
1 answer
by
rollin ,
2 years ago
@daisha
To exclude y=0 points in a chart using d3.js, you can filter the data before binding it to the chart elements. Here is an example of how you can do this:
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// Assume you have a dataset with x and y values
var dataset = [
{x: 1, y: 0},
{x: 2, y: 5},
{x: 3, y: 0},
{x: 4, y: 3},
{x: 5, y: 0}
];
// Filter out data points where y=0
var filteredData = dataset.filter(function(d) {
return d.y !== 0;
});
// Create scales and axes as needed
// Create a line generator function
// Bind the filtered data to the chart elements
svg.selectAll("path")
.data([filteredData])
.enter()
.append("path")
.attr("d", lineGenerator)
.style("stroke", "blue")
.style("fill", "none");
// Add other chart elements as needed
|
In the above code snippet, the filter function is used to create a new array filteredData that excludes data points where y=0. This new filtered data set is then bound to the chart elements using the data method before creating the chart elements.
By excluding the y=0 points in the filtered data set, you can ensure that those points are not displayed in the chart.