时间序列线图与图表控件 [英] Time Series Line Charts with Charting Controls

问题描述

我正在绘制带有.NET图表控件的时间序列的折线图，X轴上有时间。数据样本通常是统一的时间间隔，但是，如果缺少数据，怎么能我确保X轴上的缩放反映了捕获数据的实际时间
，而不是实际存在的数据样本上的等级，有效地折叠了数据丢失的时间尺度（出现时间）作为处理时间序列数据的默认方式。）

I am drawing line charts of time-series with the .NET chart control, with time on the X-axis. Data samples are generally at uniform time intervals but, if there is missing data, how can I ensure that the scaling on the X axis reflects the actual time at which the data was captured, rather than a scale equidistanced on the data-samples actually present, effectively collapsing the time scale where the data is missing (which appears to be the default way of handling time-series data).

 

推荐答案

如果你的x值是数字或日期（无论如何都转换为OADate格式，也是一个数字），除非你明确地将Series.IsXValueIndexed属性设置为true，否则图表控件不会折叠比例。

If your x values are numbers or dates (which are converted to OADate format anyway, which is a number too), the chart control will not collapse the scale unless you explicitly set Series.IsXValueIndexed property to true.

如果您的x值是字符串或每个字符串为零，图表控件将自动索引x值，您将看到折叠行为。

If your x values are strings or every one of them a zero, the chart control will automatically index the x values and you'll see the collapsing behaviour.

请确保您实际上并没有在系列中添加字符串（或将Series.IsXValueIndexed属性设置为true，当然。）

Please make sure you're not actually adding strings to the series (or setting the Series.IsXValueIndexed property to true, ofcourse.)

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