Other scatter plot considerations

Also note the following when working with scatter plots:

• Retrieval: If a tag is neither associated with an X axis tag nor acting as an X axis tag itself, no data is retrieved for it. Therefore, the data logs do not show any data for such tags.

• Cursors: You can work with cursors similar to regular trend. However, the cursor commands in the View menu are called X Value Axis Cursors and Y Value Axis Cursors instead of Time Axis Cursors and Value Axis Cursors.

• Curve type: If a tag has a curve type of "Line" or "Step Line," its data points are connected in chronological order. Depending on the nature of the data, changing the curve type to "Point" may result in a clearer display.

• Switching between chart types: Trend options that aren't applicable to a scatter plot are disabled and/or ignored when you switch the chart type from regular trend to scatter plot. However, their values are generally retained so that they are still available if you switch the chart type back to regular trend.