Value at time（时间点取值 (Value at time)）¶
Returns the value of an input numeric time series at a given input timestamp. If your time series values are strings, you must use the Enum value at time card. If you would like to return the first or last value of a numeric time series, you should use the Time series numeric aggregation card. To show the units of the series, use the Time series unit card.
Learn more about how interpolation affects this operation.
Input type¶
Time series
Output type¶
Number
Examples¶
Usage information¶
| Functionality | Availability |
|---|---|
| Standard Quiver card | Supported |
| Transform table transform | Supported |
See also¶
- Enum value at time
- Latest value for enum time series
- Time series numeric aggregation
- Time series unit
中文翻译¶
时间点取值 (Value at time)¶
返回指定时间戳下输入数值型时间序列 (time series) 的值。若时间序列值为字符串类型，则必须使用枚举时间点取值卡片。如需返回数值型时间序列的首个或最后一个值，应使用时间序列数值聚合卡片。若要显示序列的单位，请使用时间序列单位卡片。
输入类型¶
时间序列 (Time series)
输出类型¶
数值 (Number)
示例¶
使用信息¶
| 功能 | 支持情况 |
|---|---|
| 标准 Quiver 卡片 | 支持 |
| 转换表转换 | 支持 |