User Guide

123
Data Preparati
on

You can click and drag the cutpoint lines to different locations on the histogram,
changing th
ebandranges.
 You can re mo
ve bands by dragging cutpoint lines off the histogram.
Note: The histogram (displaying nonmissing values), the minimum, and the
maximum are based on the scanned values. If you do not include all cases in the scan,
thetruedis
tribution may not be accurately reflected, particularly if the data file has
been sorted by the selected variable. If you scan zero cases, no information about
the distribution of values is available.
Grid. Displays the values that define the upper endpoints of each band and optional
value labe
ls for each band.
 Value. Th
e values that define the upper endpoints of each band. You can enter
values or use
Make Cutpoints to automatically create bands based on selected
criteria. By default, a cutpoint with a value of HIGH is automatically included.
This band
will contain any nonmissing values above the other cutpoints. The
band defined by the lowest cutpoint will include all nonmissing values lower
than or equal to that value (or simply lower than that value, depending on how
you defin
e upper endpoints).
 Labels.
Optional, descriptive labels for the values of the new, banded variable.
Since the values of the new variable will simply be sequential integers from 1 to
n, labels that describe what the values represent can be very useful. You can enter
labels o
ruse
Make Labels to automatically create value labels.
To delet
e a band from the grid:
E Right-
click on the either the Va l ue or Label cell for the band.
E From th
e pop-up context menu, select
Delete Row.
Note: If you delete the HIGH band, any cases with values higher than the last specified
cutpoint value will be assigned the system-missing value for the new variable.
To delete all labels or delete all defined bands:
E Right-click anywhere in the grid.
E From the pop-up context menu select either Delete All Labels or Delete All Cutpoints.