View statistics for retrieved data

You can view statistics for the data that is retrieved and displayed for a trend. Display statistics include range, average, minimum, maximum, sum, standard deviation, and query properties. Examples of query properties are query time range, start time, end time, and number of rows returned. To display data statistics

1. On the View menu, click Statistics. The Statistics dialog box appears.

   

   Statistics appear in columns as follows.

   Type	The type of tag.
   Tag Name	The name of the tag within the Historian server. If the data values are coming from Application Server, the attribute reference is shown as the tag name. For Application Server attributes, you can also choose to show the hierarchical name along with the attribute reference.
   Server	The server that contains the tag.
   Samples	The number of samples in the trend.
   Minimum	Minimum value for the data that is plotted in the chart.
   Time at Minimum	The time stamp of the minimum value.
   Maximum	Maximum value for the data that is plotted in the chart.
   Time at Maximum	The time stamp of the maximum value.
   Average	Average value for the data.
   Standard Deviation	Standard deviation for the data.
   Range	Value range for the data.
   Timespan	The total amount of time that is spanned by the data.
   From	The starting date for the data.
   To	The ending data of the data.

2. To include only the data that is between the time axis cursors on the chart, on the Options menu, click Data From Between Cursors.

3. To include all of the data on the chart, on the Options menu, click Data From Between Graph Start/End.

4. To show actual values for discrete tags (for example, 1 or 0), on the Options menu, click Show Actual Values For Discretes.

5. To show messages for discrete tags (for example, ON or OFF), on the Options menu, click Show Messages For Discretes.

6. You can copy and paste data to the Windows clipboard by right-clicking in the log and selecting the appropriate option from the menu that appears.

7. To save the data as a .csv file, on the File menu, click Save As.

8. To set up a printout of the data, on the File menu, click Page Setup. Setting up the page works like in any other Windows application.

9. To preview a printout of the data, on the File menu, click Print Preview. Using the preview window works like in any other Windows application.

10. To print the data, on the File menu, click Print. Specifying printing options works like in any other Windows application.

11. To exit the dialog box, on the File menu, click Exit.