Add/Remove Limits

Limits are designed to add boundaries to the trend evaluation. If the trend values of the reaction run exceed a certain threshold which is defined by one or more limits, the corresponding samples can be easily separated from the regular data. All samples that exceed the limit threshold will be automatically classified as outliers. Outliers are easily distinguished visually in the trend view and property grid view by different coloring according to the limit settings. The outlier samples can also be saved separately. It is even possible to trigger external events if a limit is reached. An example with two limits is shown in the following screenshot:

Adding Limits

Please perform the following steps to add limits to a reaction:

1. Select the Limit Tab in the Parameter Panel and click on the Add Limit button in the control panel
   
   or
   
   right-click into the trend view and select the command New Limit from the context menu.

2. Enter the name for the limit into the dialog box.

3. The mouse pointer will be constrained to the trend view window to select the upper and lower boundary for the limit. Move the pointer to the desired y-position and left-click to add the first boundary, repeat to add the second boundary. The selected boundaries will be displayed immediately as colored horizontal bars. To abort the limit selection and exit the trend view simply press the ESC-button.

Remove Limits

Please perform the following steps to remove a limit:

Remove a limit via control panel:

1. Select the limit to delete in the Limit Tab of the Parameter Panel.

2. The Remove Limit button in the control panel will be activated. Click on the button to remove the limit.

3. Confirm the security prompt to finally remove the selected limit.

Remove a limit via context menu:

1. Right-click into the trend view and select the command Remove Limit from the context menu.

2. The limit will be removed immediately without further prompting.

Limit Options

The settings for each limit are accessible in the Limit Tab of the Parameter Panel. The following screenshot shows the limit tab with two example limits:

The limits are grouped together by their corresponding trends. If multiple trends are defined, there will multiple groups which contain the trends. The following options are available:

• Trend Group:
  A group with the trend name that organizes all limits for the trend. Groups can be collapsed for a better overview.

• Limit Subgroups:
  Subgroups with the limit name that contain all relevant limit settings. Limits can be enabled/disabled by toggling the checkbox in front of the limit name. One of the limit subgroup fields needs to be selected in order to be able to delete the limit via the Remove Limit button in the control panel.

• Low:
  Defines the lower threshold of the limit. The initial value is defined by selecting a value inside the trend view during the limit creation. This field shows the numerical value of the lower threshold and allows manual editing of the value.

• High:
  Defines the higher threshold of the limit. The initial value is defined by selecting a value inside the trend view during the limit creation. This field shows the numerical value of the higher threshold and allows manual editing of the value.

• Color:
  Defines the color of the limit. The limit is displayed in the trend view as vertical bars of this color. Samples that trigger the limit will be colored with this color in the trend column of the report grid. Disabling the limit will remove the coloring in the trend view and the report grid. A predefined color may be selected from the drop-down box or user-defined color may be select using the custom color dialog.

• Action:
  Defines an external executable file (*.exe, *.cmd, *.bat) which will be executed each time the limit is triggered. If for example a reaction contains five samples that trigger this limit, the external file will be called five times.