从CSV将数据重新格式化为JSON，在D3中无法正确解析

I had a graph working with CSV but we've decided to get it up and running with JSON instead. I'm having a difficult time parsing the nested pieces so that I can use them.

我有一个使用CSV的图形，但是我们决定用JSON来运行它。我很难解析嵌套的部分，以便使用它们。

Here is the fiddle link and the code block (fiddle is not working) - I'm not looking for someone to get the whole thing working... I just need help with the parsing and example of using the data.

这是古提琴链接和代码块(古提琴不工作)——我不是在找一个人来让整个东西工作……我只需要帮助解析和使用数据的示例。

http://jsfiddle.net/Mmdc8/

d3.json("https://dl.dropboxusercontent.com/u/23726217/progtime.json", function (error, jsondata) {            
        var studyData = d3.entries(jsondata);
        console.log(JSON.stringify(studyData[0]));

        studyData.forEach(function (d) {
            d.value.name = d.value.name
        });
        console.log(studyData.value.name);

1 个解决方案

#1

Your JSON file has the following structure:

您的JSON文件具有以下结构:

- details: [...]
- annotations: [...]
- dates: [...]

Each one of this fields, contains an array with objects. To access the data, you don't need to use entries:

每个字段都包含一个带有对象的数组。要访问数据，您不需要使用条目:

d3.json(jsonUrl, function(error, jsondata) {

   // Handle errors getting or parsing the data
   if (error) { return error; }

   // Parse the dates
   var startDate = new Date(jsondata.dates.StartDate),
       endDate = new Date(jsondata.dates.EndDate);

   // It will print the array of objects
   console.log(jsondata.details); 

   // Print the start and end dates
   console.log([startDate, endDate]);
});

EDIT: Added access to the dates.

编辑:添加对日期的访问。

#1