# Data quality graph

The QC graph screen displays a graph of quality indicators that are available from data in a job. To change the type of data to display, tap Display. To scroll along the graph, use the arrow buttons. To view basic details of a point, tap the graph. For more information, double tap the graph to access Review.

You can view a graph of:

- Horizontal precision (H. Prec.)
- Vertical precision (V. Prec.)
- Tilt distance
- Satellites
- PDOP
- GDOP
- RMS
- HA standard error
- VA standard error
- SD standard error
- Elevation
- Target height
- Attributes

Attributes can be filtered by Feature code and Attributes but only feature codes that contain numeric or integer attributes are displayed.

Tap a point to see details for that point. Tap again to review the point.

To aid point selection, tap a point and then tap Prev or Next to select the previous or next point.

To add a note to a point, tap the bar in the graph to select the point, and then tap the Note softkey.

To navigate to a point, tap the point and swipe right to left along the row of softkeys and then tap Navigate.

To define the Y axis range, tap near the Y axis and from the pop‑up menu define the Minimum and Maximum Y axis values.