Filter formula editor

In all MedCalc statistical dialog boxes, when the cursor (the focus) is on a Filter selector, then you can press function key F8 to call the filter formula editor.

In short:

• In the dialog box for Summary statistics, first select the continuous variable of interest, CONCENTRATION
• Move the cursor to the Filter selector (the cursor should flash in the selector)
• Press function key F8
• In the variables list, double click TREATMENT; the variable is added to the formula
• Next click the = sign; the = sign is added to the formula
• The possible values for the variable TREATMENT are listed in the values box.
• Double click the required value; "A" is added to the formula (note that text values are placed between quotation marks, numbers are not)
• Click OK to close the filter editor and return to the dialog box for Summary statistics.
• Click OK.
• The summary statistics for the variable CONCENTRATION are displayed, for those cases that were given treatment A.

See also

• Filters
• Edit filters list
• Spreadsheet overview