# Time Interval Operation

![](https://894783789-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LPHXQ1I3gb93zpLrLZf%2Fuploads%2Fgit-blob-12d64099e3c341fb6e902e1d3d8e26bf1f9f9f6b%2FTime_Interval_Operation.png?alt=media)

![](https://894783789-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LPHXQ1I3gb93zpLrLZf%2Fuploads%2Fgit-blob-43a675f112f357ffcbc402bf481aa55ce0e8e726%2FTime_Interval_Operation.png?alt=media) - [\[source code\]](https://github.com/ladybug-tools/ladybug-grasshopper/blob/master/ladybug_grasshopper/src/LB%20Time%20Interval%20Operation.py)

Perform time interval operations on an hourly data collection.

This includes operations like: - Average - Total - Percentile

These actions can be performed over the following time intervals: - Daily - Monthly - Monthly per Hour

### Inputs

* **data \[Required]**

A Ladybug data collection object.

* **operation**

Text indicating the operation that should be performed on the input hourly data. Such text must be one of the following:

```
- average

- total

- [a number between 0 and 100]
```

In the case of the last option, the number will be interpreted as a percentile of the data over the time period. For example, inputting 75 will return the 75th percentile value of each day/month/hour, inputting 0 will give the minimum value of each day/month/hour and inputting 100 will give the max value of each day/month/hour. Default is 'average' if the input data type is not cumulative and 'total' if the data type is cumulative.

### Outputs

* **daily**

Daily data collection derived from the input \_data and *operation*.

* **monthly**

Monthly data collection derived from the input \_data and *operation*.

* **mon\_per\_hr**

Monthly Per Hour data collection derived from the input \_data and *operation*.


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