Question

有人可以帮我弄清楚为什么我的json文件没有被生成。我使用了一小部分数据并且工作正常。当我使用完整集时，我得到的是空数组，前两行有效，或循环错误。

这是我的csv的前几行......

parent,name,nsize,lsize,type,level,nfill
NR2F2,NNMT,20,3.035224474,black,red,blue
NR2F2,CDH6,20,2.497522953,black,red,blue
NR2F2,LOX,20,2.882828876,black,red,blue
NR2F2,AFAP1L2,20,3.250988851,black,red,blue
NR2F2,KCNG1,20,1.871023523,black,red,blue
NR2F2,THBS2,20,3.556420832,black,red,blue
NR2F2,RHOU,20,4.892457573,black,red,blue
NR2F2,ITIH5,20,1.579040121,black,red,blue

这是我从Generate (multilevel) flare.json data format from flat json

复制的脚本

//load csv and copy to global variable  
d3.csv("../jsfiles/nr2f2tbx5hey2json.csv", function(csv_data) { 
        var nested_data =  d3.nest()
          .entries(csv_data);

var dataMap = {};
var dataMap = nested_data.reduce(function(map, node) {
map[node.name] = node;
return map;
}, {});

// create the tree array
var tree = [];
nested_data.forEach(function(node) {
// add to parent
var parent = dataMap[node.parent];
if (parent) {
    // create child array if it doesn't exist
    (parent.children || (parent.children = []))
        // add node to child array
        .push(node);
} else {
    // parent is null or missing
    tree.push(node);
}

});

 //create the root node for the treemap
var root = {};

    // Add the data to the tree
root.name = "Start";
root.children = tree;
console.log(JSON.stringify(root,null, 4));

在创建树数组部分

之后看起来它出错了

感谢任何帮助。谢谢！

csv到json的层次结构树d3.js

0 个答案: