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A comparison analysis is useful to compare two streams of interval data over a common period of time.

  1. Select Analysis | Advanced Scripts. The Advanced Scripts workspace appears.

  2. From the Analysis menu, select Generate | Comparison. The Comparison Analysis window appears.

  3. In the Source 1 field, select the first device from which data is being compared by clicking the 'search' icon (  ). The Select Data window appears.

  4. Select the data source whose interval data you want to include in the analysis.

    1. Click the 'plus' icon (  ) to open folders and view their contents. Available interval data will be indicated with a check box. Click the check box to select desired data.

    2. If you are unable to locate the appropriate device, click More to reveal search options:

      Select the desired data subset from the Look In: drop-down options, and input the known text in the Text: box. If uncertain of the precise text, or if desirable to select from a series of similar IDs, use the asterisk (*) wildcard in place of a character string or word. Then click the icon to search the database for the string.

  5. In the Date range section, select a date range that the analysis should encompass.

    • To set a predefined date range, select the appropriate time frame in the Range field.

    • To set a specific date range, in the Start and End date fields, type the date or use the drop-down arrow to select the date from a calendar.

  6. Click OK. The Select Data window closes. Data fitting the search criteria will be displayed in the Found Items folder. Click  to open the folder and display search results.

  7. In the Source 2 field, select the second device from which data is being compared by clicking . The Select Data window appears.

  8. Select the data source whose interval data you want to include in the analysis.

    • Click  to open folders and view their contents.

    • If you are unable to locate the appropriate device, click More and follow the previous instructions for using the Find interface.

  9. In the Date range section, select a date range that the analysis should encompass.

    • To set a predefined date range, select the appropriate time frame in the Range field.

    • To set a specific date range, in the Start and End date fields, type the date or use the drop-down arrow to select the date from a calendar.

  10. Click OK. The Select Data window closes.

  11. If you have run an analysis previously and would like to add the current analysis to it, select the Append to script check box. (If Append to script is not selected, the results of the previous analysis are overwritten.)

  12. After making your selections, click OK.

    • The Output tab displays a report-like format of the requested data.

    • The Script tab displays the script (code) used to generate the analysis. See Overview: Advanced Scripts.

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