Each chart has an expandable **Chart settings** area in which four types of changes can be made:
1. Chart type
2. Labels
3. Time
4. Fix Series Axis
5. Data shown
Below, we go through each of these in turn
## Chart type
Example Chart types
Chart type can be changed by simply selecting a new option from the **Chart Type dropdown**, as shown above.
## Labels
Example Label positioning
Labels can be added to Charts using the **Labels dropdown**, as shown above. Available Label options depends on the Chart type.
## Time
Charts aggregated over different Time Periods
You can aggregate your charts over different time periods using the **Time dropdown**, as shown above.
## Fix Series Axis
If "Fix Series Axis" is selected, the dimensions of the series axis (usually y-axis) will be set such that all scenarios/sensitivities can be shown on the chart without changing the axis. This gives a more visual experience when switching between scenarios.
If you want to look at an individual scenario in more detail, unselect "Fix Series Axis" and the series axis will then adjust to the best scale for just the selected scenario.
## Data Shown (Categories, Series and Filters)
A Models Chart can only show two dimensions at any given time. Usually one of the dimensions shown is `Time`, typically on the X-axis, meaning that the "series" of the Chart can only vary by one other dimension. This might be a [**Dimension**](https://help.taglo.io/dimensions) of the Variable (or Assumptions), but it could also be the [**Scenarios**](https://help.taglo.io/cases/managing-scenarios) or [**Sensitivities**](https://help.taglo.io/cases/managing-sensitivities) of the Model. Any dimensions that are not chosen as Chart categories or series, must be specified as a filter.
In the example below, the Variable has two Dimensions: `Region` (North, South), and `Membership tier` (Basic, Premium, Platinum). There are also two Scenarios and three Sensitivities in the Model. Here, `Time` has been chosen as the Chart's categories, and `Region` as the series **(Chart axes)**. This means that only one combination of `Membership tier`, `Sensitivities` and `Scenarios` can be shown at a time **(Chart filters)**. These are set to `Basic`, `Base`, and `Base` respectively **(Filter values),** but can be changed by the filter value dropdowns.
Chart controls for choosing which data to display
In the below example, we want to see information about the same Variable, but across both of its Dimensions, `Region` and `Membership tier`. This means we cannot keep `Time` as a dimension of the Chart; instead we use `Region` for categories, and `Membership tier` for series. This automatically makes `Time` a filter for our Chart, and we need to choose a specific date to show data for: in this case, we choose the last date of the Model, `March 2028`. Now we can see the difference between revenues across both region and membership tier simultaneously, at a given point in time.
