The Statistics function enables you to describe
the distribution of a data set. Select
the **Statistics** () toolbar button in the Data Table Window to present the *Statistics* window. This
window begins on the **Data & Analyses
Selection** tab. After
the data columns are selected and you specify that a Correlation analysis
should be performed on the first tab, then the **Correlation**
tab may be clicked:

Beside the **Tab
Name** heading, users should type a name for the analysis that will
appear as a table heading in the Data Table Window.

The **Display**
group box contains the two available choices for the correlation analysis:

**Correlation
Coefficient only** -
shows only the 1-to-1 correlation coefficient between each dependent and
independent variable

**Detailed
Correlation Analyses** - shows the 1-to-1 correlation coefficient,
linear regression slope and intercept, and six error statistics between
each dependent and independent variable

The Dependent Variables group box shows
the data columns that should be analyzed for correlations. The
**Select** button in this box allows
you to choose the columns for analysis, and the **Select
All** button chooses all of the currently displayed (not hidden)
columns. Note
that the Correlation function requires at least two dependent variables
to be chosen to operate.

The Independent Variables group box shows
the data columns that should be used for the analysis. The
**Select** button in this group box
allows you to choose the columns, and the **Select
All** button chooses all of the currently displayed (not hidden)
columns. The
**Same as Dependent Variables** button
copies the list chosen for the dependent variables to the independent
variables list.

Click **OK**
to add a new tab to the Data Table Window and close the *Statistics*
window. The
new tables appear similar to others:

Correlation Coefficient Only (dependent variables listed in rows and independent in columns)

Detailed Correlation Analysis (each dependent-independent pairing shown in a row)

Each row in a detailed correlation analysis lists a pairing of a dependent and an independent variable in the first two columns. The next three columns show the correlation coefficient, the slope and intercept giving the linear regression between the pair. The Equation appears in the next column, followed by the following columns:

Mean absolute error

Mean prior absolute error

Relative absolute error

Root mean square error

Root mean prior squared error

Root relative squared error

Click **Cancel**
to close the *Statistics* window
without saving any changes.