> For the complete documentation index, see [llms.txt](https://water-strategy.gitbook.io/waterstrategy/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://water-strategy.gitbook.io/waterstrategy/deutsch/tutorials/pywr-scenarios-reading-external-dataframe-and-adding-custom-rules/reading-csv-dataframe.md).

# CSV-DataFrame lesen

Gehe zu **Neues Reservoir-Release** Node und Change **Maximaler Durchfluss** zu **-400**, dadurch kann Wasser durch diesen Knoten fließen

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-6420f89ca94eb65a3717127f5a057a71036890d3%2Fimage%20(2)%20(1)%20(1).png?alt=media" alt=""><figcaption></figcaption></figure>

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-d865c3314b236c878e80f37455d84879d7e5d3ec%2Fimage%20(5)%20(1).png?alt=media" alt=""><figcaption></figcaption></figure>

Die heruntergeladene Datei, **Themse\_Lee\_Tal\_demand.csv**, enthält einen Zeitreihen-Datensatz, der mit zwei Schlüsselspalten strukturiert ist:

**Zeitschritt:** Diese Spalte dient als Index für die Zeitreihe. Sie stellt den Zeitverlauf im Datensatz dar und ermöglicht eine chronologische Organisation.

**Nachfrage nach Lee Valley:** Diese Spalte enthält die Daten, die die Nachfragewerte im Lee Valley darstellen.

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-6ff2c6c50da13881ba949629c3c9e866042620c5%2Fimage%20(3)%20(1)%20(1).png?alt=media" alt="" width="443"><figcaption><p><strong>Themse_Lee_Valley_Demand</strong></p></figcaption></figure>

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-b935e0b126a1fa027985428bcb768660f1e4f19d%2Fimage%20(4)%20(1)%20(1).png?alt=media" alt=""><figcaption></figcaption></figure>

Wählen Sie den Ausgangsknoten **Nachfrage nach Lee Valley** und bearbeite die **Maximaler Durchfluss**

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-6a33f97b4cd180208ec2bc2382b3af1084576456%2Fimage%20(5)%20(1)%20(1).png?alt=media" alt="" width="563"><figcaption></figcaption></figure>

Wählen Sie unter Optionen **PYWR\_PARAMETER**

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-6bcdcee83a916021c64825325e516b8652a1176b%2Fimage%20(6)%20(1).png?alt=media" alt=""><figcaption></figcaption></figure>

Fügen Sie die folgende Konfiguration ein:

```json
{
	„Typ“: „DataFrameParameter“,
	„url“: „Themse“_Lee_Valley_demand.csv „,
	„column“: „Nachfrage nach Lee Valley“,
	„index_col“: „Zeitschritt“,
	„parse_dates“: wahr
}
```

Jetzt sollte es wie das folgende Bild aussehen:

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-84e9550faf636e8fe09ae9c29546483aece993b8%2Fimage%20(7)%20(1).png?alt=media" alt=""><figcaption></figcaption></figure>

### Ergebnisse

Klicken Sie auf den Knoten Lee Valley Demand > Outputs > simulated\ \_flow, um die Ergebnisse der Simulation zu sehen

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-2c2acdf9f5b2f1add124601b8c05d3946c26102c%2Fimage%20(38).png?alt=media" alt="" width="475"><figcaption></figcaption></figure>

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-0064235a1421501d36e942ee6607d0676b5bd6a4%2Fimage%20(36).png?alt=media" alt=""><figcaption><p>simulated_flow (Nachfrage nach Lee Valley)</p></figcaption></figure>

Überprüfe jetzt das **simuliert\_Volumen** zum **Neuer Stausee**

<figure><img src="https://1875979063-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM66QWevUBo6VXSGCmO4L%2Fuploads%2Fgit-blob-5ea22e9ba5b69183bcaef39bdb72fb02f3ab8baf%2Fimage%20(37).png?alt=media" alt=""><figcaption><p>simuliertes Volumen (New Reservoir)</p></figcaption></figure>


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