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Input Data

When you select one of the data analysis commands from the main menu, EasyFit displays the dialog allowing to specify the data to be analyzed:

First, you need to specify the Data Domain which affects how your input data will be processed.

Continuous input data can be supplied in one of the following formats:

  • Sample Data: specify one data field containing sample data values;
  • X-Density Data: specify two data fields: the first containing X values, and the second containing corresponding probability density values; typically the sum of density values equals 1 (representing the area under the density curve), but if it doesn't, EasyFit will automatically normalize your density data.

Discrete input data can be provided in one of the following formats:

  • Sample Data: specify one data field containing integer sample data values;
  • X-Count Data: specify two data fields: the first containing integer X values, and the second containing positive integer count values denoting the number of corresponding X values in a sample.

The dialog box contains a list of available (currently open) data tables and data fields (columns). To specify your input data, select an appropriate column, and click the ">" button. You can also drag & drop the data fields using mouse.

When the Input Data dialog opens, EasyFit automatically selects the currently active data table and the highlighted data column. This makes the process of data selection easier: you just need to select the data table from the Project Tree, highlight the data column you want to be analyzed, select the analysis option, and press Enter.

In case if you want to analyze some subset of your data, you first need to select it (while editing the data, hold down the Shift key and use the arrow keys to expand the selection). Then, check the Analyze selected rows only check box.

After the input data is specified, click OK to perform the analysis.

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