D3: Removing Elements
d3.js, javascript
Solution
try switching your selectAll statement to:
svg.selectAll("rect.negative").remove()
This should select the tags `rect` with class `negative`although I'm not 100% sure it will find it because the `attr` `class` is written as `bar negative`. If it doesn't work I might try changing your `class` attribute to something like `negative bar` or just `negative`.
Sorry if this doesn't help!
Problem
I have a bar chart that creates positive and negative bars. I'm trying to remove the negative bars later on but for now, even after appending the bars, if I try to immediately remove the negative bars, they still appear. ``` var margin = {top: 30, right: 10, bottom: 10, left: 10}, width = 750 - margin.left - margin.right, height = data.length * 20 //500 - margin.top - margin.bottom; var x = d3.scale.linear() .range([0, width*.85]) //chart1.x =x //chart1.y = y var y = d3.scale.ordinal() .rangeRoundBands([0, height], 0); var xAxis = d3.svg.axis() .scale(x) .orient("top"); var svg = d3.select("#barchart").append("svg") .attr("width", width + margin.left + margin.right) .attr("height", height + margin.top + margin.bottom) .append("g") .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); //d3.tsv("data.tsv", type, function(error, data) { x.domain(d3.extent(data, function(d) { return +d.netdonations_over_population_to_gdppercap_percentage; })).nice(); y.domain(data.map(function(d) { return d.name; })); bar = svg.selectAll(".bar") .data(data) .enter().append("rect") .attr("class", function(d) { return +d.netdonations_over_population_to_gdppercap_percentage < 0 ? "bar negative" : "bar positive"; }) .attr("x", function(d) { return x(Math.min(0, +d.netdonations_over_population_to_gdppercap_percentage)); }) .attr("y", function(d) { return y(d.name); }) .attr("width", function(d) { return Math.abs(x(+d.netdonations_over_population_to_gdppercap_percentage) - x(0)); }) .attr("height", y.rangeBand()).style("stroke","white") bar.selectAll(".negative").data([]).exit().remove() ``` The remove statement is the last one. The rest of the code: ``` svg.selectAll("text") .data(data) .enter().append("text").text(function(d) { return d; }).attr("y", function(d, i) { return y(d.name)+ y.rangeBand(); //return i * (height / data.length)+30; }).attr("x", function(d) { return x(0) //x(Math.min(0, +d.netdonations_over_population_to_gdppercap_percentage)); }).text(function(d) { //return y(d) + y.rangeBand() / 2; return d.name + " " + d.netdonations_over_population_to_gdppercap_percentage; }).style("font-size","14px").attr("dx", 3).attr("dy", "-0.45em") svg.append("g") .attr("class", "x axis") .call(xAxis); svg.append("g") .attr("class", "y axis") .append("line") .attr("x1", x(0)) .attr("x2", x(0)) .attr("y2", height); ```