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Coalesce time series(合并时间序列(Coalesce time series))

The coalesce time series card returns the first time series that is not null or errored, or null if all input series are null. This card is useful for casting potential null series to a defined series. To do this, use a variable input to select a card or column value that is potentially null as the first array value. For the second array value, choose a non-null "fallback" time series for cases when the first value is null.

Input type

Time series array

Output type

Time series

Examples

Coalesce time series example

Usage information

Functionality Availability
Standard Quiver card Supported
Transform table transform Supported

See also


中文翻译


合并时间序列(Coalesce time series)

合并时间序列卡片返回第一个非空且无错误的时间序列,若所有输入序列均为空则返回空值。此卡片适用于将潜在的空序列转换为已定义的序列。使用时,通过变量输入将可能为空的卡片或列值作为第一个数组值,第二个数组值则选择非空的"备用"时间序列,用于处理第一个值为空的情况。

输入类型

时间序列数组(Time series array)

输出类型

时间序列(Time series)

示例

合并时间序列示例

使用信息

功能 支持情况
标准 Quiver 卡片 支持
转换表转换 支持

另请参阅