我正在尝试绘制一些多列x-y数据。如果x轴是整数,则一切正常。但是,如果x轴是浮点型(这就是我想要的),我将得到:
"Couldn't parse 2.214844 as a date"
...
作为控制台中的错误。如何绘制x轴的浮点数?
数据示例:
2.214844,,,,,0.000000
2.224854,,,,0.000000,
2.234131,0.000000,,,,
2.264893,,,0.000000,,
2.273193,,0.000000,,,
104.372070,,,,0.000000,
104.376709,,,,,0.000000
104.398193,0.000000,,,,
104.498047,,,0.000000,,
104.577148,,0.000000,,,
到目前为止,我的代码:
g = new Dygraph(
document.getElementById("graphdiv"),
"./a.csv",
{
labels: ['time','1','2','3','4','5'],
visibility: [true, false, false,false,false],
axes: { x: {
//valueParser: function(x) {return parseFloat(x);},
valueParser: function(x) {return parseInt(x);}
}
}
});
我尝试使用和不使用轴选项。
答案 0 :(得分:0)
您已经发现了很多错误! dygraphs根据第一个数字(“ 2.214844”)确定x值是日期还是数字。在这种情况下,because of an imprecise check会出错。
此问题将在下一个音标版本中得到修复。但是与此同时,您可以选择:
从该值中添加或删除一位数字,即将其设为“ 2.2148440”,并在末尾添加零。 (严重!)
明确告诉字形图您的x轴是数字。
这将是这样的:
g = new Dygraph(
document.getElementById("graph"),
csv,
{
xValueParser: parseFloat,
axes: {
x: {
valueFormatter: x => x,
ticker: Dygraph.numericTicks,
axisLabelFormatter: x => x,
}
}
}
);
请参见full example。