---
title: Correcting the Outliers
description: "Right click on the graph to bring up the context menu and select **Settings**. Click on the**Add or Remove** button to bring up the **Add or Remove** dialog box and select *Corrected History*. Click on OK to close the **Add or Remove**dialog…"
url: "https://dev.forecastpro.com/documentation/forecast-pro-trac/detecting-and-correcting-outliers/correcting-the-outliers/"
updated: "2024-12-17"
category: Forecasting Operations Tutorials / Detecting and Correcting Outliers
---

# Correcting the Outliers

Right click on the graph to bring up the context menu and select **Settings**. Click on the**Add or Remove** button to bring up the **Add or Remove** dialog box and select *Corrected History*. Click on OK to close the **Add or Remove**dialog box. Make sure Corrected History is now included in the Layout tab of the **Graph Settings** dialog box and that the Display checkbox is selected. Click OK to close the **Graph Settings** dialog box.

Double-click on the first item listed on the outlier report. Your display should now match the one shown below.

![](https://dev.forecastpro.com/wp-content/uploads/2024/03/Outlier-Report-and-Corrected-History-in-Graph.png)

Notice that when you double-click an item on the outlier report, the Navigator jumps directly to that item. Thus, you can use the outlier report as the equivalent of a Hot List to navigate through the listed items. All of the global report views support this kind of navigation.

Notice that the December 2021 outlier is shown with a marker on the graph and adding in Corrected History allows us to see the suggested correction. The data point is rather unusual and you can see that the forecast has a spike in December, which is why is driven by the outlier.

Select the **Forecasting **tab. In the Tools group, open the Outliers drop-down and select Correct. Notice that the status in the outlier report has changed to Corrected and that correcting for this outlier has changed the shape of the forecasts.

![](https://dev.forecastpro.com/wp-content/uploads/2024/03/Outlier-Report-Corrected.png)

Double-click on the first item on the outlier report marked *Detected*. Here too, we have a significant outlier and will want to correct for it. Examine the remaining items in the report and experiment with the Outlier options on the Outliers icon drop-down. When you are comfortable with their operation, exit the program.

This concludes the *Detecting and Correcting Outliers* tutorial.