PC World Komputer 1996 May/PCW596.iso/demo/statsoft/statist5/data.z/README.TXT

Text File | 1995-08-21 | 9.4 KB | 210 lines

STATISTICA(R) Release 5.0
Demonstration Program

     Welcome to the STATISTICA version 5.0 Demonstration
Program.  This Demonstration Program is not a "self-running"
demo; it is a program with  many features of the Basic Statistics
module of STATISTICA and it allows you to run your own analyses
and produce customized graphs.

     Note that this Demonstration Program came with several
example data files (located in the EXAMPLES subdirectory inside
the Demonstration Program directory) on which you can perform
various analyses and create different kinds of graphs.


QUICK REFERENCE

ELECTRONIC MANUAL:  Press F1 at any point in the program
to access the comprehensive Electronic Manual.

EXAMPLE: CORRELATIONS

After starting the program, the last-used data file is automatically
opened (when you start the Demo program for the first time, the
data file ADSTUDY.STA will open).  Select Correlation Matrices
from the start up panel (the same selections are available from the
pull-down menu Analysis).  The Correlation dialog will appear.
Press the first button (One variable list (square...)) to choose the
variables for the correlation matrix; for example, highlight 10
variables in the list: MEASUR1 through MEASUR10 and click OK.
Then, click OK to see the default output: a Scrollsheet showing the
correlation matrix.

The numbers in the correlation matrix represent relations between
the variables; the higher the absolute value of a correlation
coefficient, the stronger the relation between the two respective
variables.

To see graphs related to a particular correlation coefficient, point to
that coefficient with the right-mouse button.  A "flying menu" will
pop-up.  Select the first option in the menu: Quick Stats Graphs,
and then, from the list of "quick" graphs, select the first one: a
Scatterplot.  The graph will appear on the screen.

Now you can explore the other "quick" graphs which visualize the
variables from the correlation matrix.  You can also return to the
previous dialog to review other options (press the Continue button
on the correlation matrix Scrollsheet or the "floating" Cont button
near the bottom of the STATISTICA window).

For a comprehensive selection of graphs, try the pull-down menu
Graphs or the toolbar button Graphs Gallery.

TOOLS

"Flying menus."  Point to any object on the screen and press the
right-mouse-button to bring up a context-sensitive "flying menu" of
options related to the object.  Try it for a spreadsheet cell -- the
options will include a selection of relevant graphs, formats,
recoding, etc.  In graphs, the "flying menu" options allow you to
quickly customize the selected object (e.g., a scale, title).

Toolbars.  The most common tools are accessible from the
toolbars.  The toolbars change when you switch between output
windows (e.g., graphs have different toolbars than spreadsheets).
To review the short toolbar-button descriptions on the status bar
(at the bottom of the window), keep the selected toolbar button
pressed; then, release the mouse outside the toolbar to release the
toolbar button without invoking its function.

DATA

Data files.  STATISTICA data files are organized into cases (rows
in the spreadsheet) and variables (columns in the spreadsheet).
Cases are like records in data base management files and they
consist of a number of variables (e.g., each case may represent one
patient in a medical study).  Variables (columns) are like fields in
data base management files (e.g., each variable may represent one
type of measurement, such as the cholesterol level, blood pressure,
etc.).

Variables.  To review or edit the specifications of a variable,
double-click on the respective column name in the spreadsheet.

Text values; value labels.  In STATISTICA, all values can
simultaneously have numeric and text identities (e.g., 1=MALE,
2=FEMALE).  Switch between displaying the two by pressing the
spreadsheet toolbar ABC button.  All values can also have long
labels; to review/edit the labels for the highlighted variable, press
the toolbar ABC/123 button.

Subsets of cases.  To specify a subset of cases to be included in
(or excluded from) an analysis, double-click on the clickable Sel:
OFF field on the status bar (at the bottom of the STATISTICA
window).

FLOW OF INTERACTIVE ANALYSES

Self-prompting dialogs.  To perform an analysis, select it from
the startup panel (or the pull-down menu Analysis or Graphs).  If
you are not sure what to select in a dialog, press OK; then, if
necessary, STATISTICA will request that you make additional
selections.

Queues of Scrollsheets and graphs.  The Scrollsheets
(output tables with built-in customization and data visualization
facilities) and graphs are displayed in queues of windows of a fixed
length (by default, 3 windows in each queue) and they are closed on
a first-in-first-out basis.  You can customize this system using the
pull-down Options or Window menus.

Text and graphics reports.  In addition to the printer and disk
file output, the content of all Scrollsheets and graphs can be
directed to a report window; double-click on the Output: OFF field
on the status bar (at the bottom of the window) to review some of
the relevant options.

CUSTOMIZATION OF THE USER-INTERFACE

STATISTICA supports a selection of user-interfaces (various
interactive interfaces, internal macros, command languages, macros
written in other applications which support DDE).  Practically all
aspects of the user-interfaces are customizable.  For example, to
review some of the output reporting options, double-click on the
Output: OFF field on the status bar (at the bottom of the window)
or use the pull-down menu Options.

GRAPHS

Types of graphs.  Many specialized graphs are part of the
output from respective analyses and they are automatically
generated or are available from the respective Results dialogs
and/or Scrollsheets.  The "general purpose" graphs are available
from the pull-down menu Graphs or the Graphs Gallery (accessible
by pressing a toolbar button).  In that menu:

The Stats Graphs options offer hundreds of types of pre-defined
statistical graphs produced from raw data;

The Quick Stats Graphs (also accessible from "flying menus"
and all toolbars) offer a selection of the most often-used types
of Stats Graphs; they are "quick" in the sense that they do not
require going through any intermediate dialogs; they do not
even require selecting variables because the variables indicated
by the highlight position in the current spreadsheet or
Scrollsheet are automatically used;

The Custom Graphs options (also accessible from "flying
menus" and all toolbars) allow you to convert any combination
of numbers from rows and/or columns (and their subsets) in the
current spreadsheet or Scrollsheet into graphs;

The User-Defined Graphs offer types of graphs which were not
available as pre-defined graphs but were "constructed by the
user" and added to the menu or floating toolbars for repeated
use;

The Blank Graphs create "empty" graph windows where other
graphs (and/or drawings, diagrams, and other artwork) can be
pasted or linked/embedded; the same effect can be achieved by
starting with an existing graph and extending its margins to
make room for other objects.

Customization of graph layout.  The "flying menu" of global
graph customization options can be popped up by pressing the
right-mouse-button anywhere on the "empty" outside background
of the graph.  The most commonly-used global customization
options are included in the General Layout dialog accessible from
that menu (see the first option of the menu) or by double-clicking
anywhere on the "empty" outside background of the graph.

Customization of graphic objects.  The "flying menu" with
customization options applicable to a graph object (e.g., scale, title,
gridlines, markers) can be quickly accessed by pressing the right-
mouse-button on the object, e.g., on a graph scale.  The most
commonly-used customization dialog for an object (e.g., for a
marker -- the Patterns, colors, and sizes dialog) can be accessed by
double-clicking on the object.

Drawing, zooming, etc.  If you press one of the toolbar buttons
to enter a graph drawing, zooming, inserting, resizing, etc. mode,
press the wide arrow button on the graph toolbar (or press the Esc
key) to return to the default pointing mode.  To edit an existing
custom-drawn object (e.g., a freehand line or rectangle), click on it
with the mouse -- then, you can resize it (by dragging the black
resizing squares), or change its color, pattern, etc. (by using the
respective toolbar buttons).  Freehand lines support the "second-
level" line shape editing mode: the editing squares will appear in
every point where the line changes its direction -- you can now drag
any one of them with the mouse to modify the local shape of the
drawing (to edit fine details, zoom on the object with the toolbar
magnifying glass (zoom +) tool).


ORDERING INFORMATION

Thank you for trying STATISTICA.  To order or to get more
information, you can contact StatSoft USA:

    StatSoft, Inc.
    2325 East 13th Street
    Tulsa, OK  74104

    voice:    (918)-583-4149
    fax:    [phone]

or a local StatSoft sales office (or an authorized representative);
please refer to the enclosed brochures for details.