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chpt8.txt
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1992-03-08
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page 8-1
CHAPTER 8: TIPS ON USING FREE & EASY
This chapter contains suggestions about how to use FREE & EASY more
efficiently and how to avoid getting into situations where unexpected
results occur. You will probably find this chapter more useful after
you have learned most of the features of FREE & EASY and have used it
for awhile. The tips are arranged according to subject and are
numbered. More tips for using FREE & EASY are found in the sample
sheets which come with the FREE & EASY package.
Tips on Sheet Set-up
1. Always use a lot of explanation in the text of the sheet. Indicate
how the sheet works, what its purpose is, how the calculations are
done, what the variables and ranges are, etc. This is especially
important if you are modifying or expanding a sheet or if someone else
is trying to use or modify a sheet you have made. If you start working
on a sheet that you have not used for several months, you will
appreciate the explanation given in the text.
2. Do not make sheets excessively large and complex. They can become
very difficult to maintain, understand and debug. In many cases, it
makes more sense to break a large sheet up into several smaller sheets.
This allows for easier understanding of the sheet and easier
modification. Use the multiple sheet and multiple window features to
see the different sheets at one time.
3. Keep the cells lined up and not staggered. Also, keep cells in the
same column the same size. This allows for easier movement of cells
around the sheet.
4. Do not allow the cell contents to become too complicated;
otherwise, the calculations can become difficult to follow. It is
often better to do a complicated calculation in several cells.
5. When inserting columns in a sheet, do not insert columns in the
middle of a cell. You might not get the results you want.
6. Keep a good distance between adjacent cells. This will allow you
to increase the size of the cell without losing the cell beside it
(cells cannot overlap).
7. If you get a warning message, make sure you know the consequences
of your actions before proceeding. Otherwise, you could lose data that
you want to keep or have unexpected results on your sheet.
8. Give cells, variables and ranges meaningful names. This helps you
and others understand your sheet.
9. Give the sheets (files) meaningful names. This makes file
maintenance easier. Also, if you are looking for a file that you have
not used for some time, it will be easier to locate.
10. Use the make file features, especially if you work with many sheets
at one time. This allows you to set up and run more quickly at the
page 8-2
start of a FREE & EASY session.
11. Use the help screens extensively. Remember that each warning and
error message has its own help screen for further explanation. Use
the hyperlinks to find related help topics.
12. If printing a sheet, make sure its width will fit the printer you
are using. If your printer will be printing 132 columns, you might
want to set the maximum column size of your sheet to 132.
Tips on Editing
1. You can use the cut and paste features of FREE & EASY on text, cells
or ranges or any combination of these. Use the "edit defaults" menu to
set which ones you want to use.
2. Remember that a make file contains information on all edit
defaults. Thus you can use a make file so that you do not have to set
up all you edit defaults (and all other defaults) at the beginning of
each FREE & EASY session.
3. Putting data in the clipboard takes up computer memory. If the
clipboard contains a large amount of data, use the "clear clipboard"
menu item to free up more memory. This is especially useful if you get
an "out of memory" error message.
4. When you use the "Copy to clipboard" or "dElete" menu items, a cell
or range must be completely within the highlighted area in order to be
affected.
5. When you use the "copY from clipboard" menu item, FREE & EASY will
eliminate all data except ranges within the area where the new data
will go. Cells which are even partially within this area will be
eliminated.
6. When using the "copY from clipboard" menu item; if you get a "data
will be lost" warning, make sure that you know what data will be lost
before proceeding.
7. Keep the cursor in overstrike mode unless you intentionally want to
insert some text. Otherwise some text might be pushed off the edge of
the sheet. (A warning is given before this happens.)
8. FREE & EASY will not allow duplicate cell names or range names in
the same sheet. Thus, if you are adding a cell with the editing
features to the sheet which already has a cell of the same name, the
name of the cell you are adding will not be added. If you are adding a
range and the sheet already has a range of that name, the range will
not be added.
Tips on Cell Evaluation
1. Use plenty of text in the sheets to explain how calculations are
done. This will prove helpful when debugging a sheet as well as using
page 8-3
a sheet which has not been used for some time.
2. Use meaningful names for cells, variables and ranges. This makes
your calculations easier to follow.
3. Avoid or minimize redefinition of variables (i.e. defining a
variable more than once in a sheet). This can lead to bugs that are
difficult to find.
4. To speed up calculations, keep the variable used by the cell to the
left of or above the cell and as close to the cell as possible.
5. FREE & EASY can find a number referred to by its location faster
than a variable, thus speeding up calculations.
6. To debug a sheet, evaluate each cell individually with F7 and go to
the next cell to be evaluated with F8. Another technique is to
evaluate cells until an error is found, correct that error and then
press shift-F10 to continue evaluating until the next error occurs.
7. Keep the "evaluation default" "check cell evaluation order" as
"yes" unless you have a specific reason not to do so. This can avoid
bugs that are difficult to find.
8. Remember that references to sheet locations in the cell can be
relative or absolute. If you move a cell, then the relative location
it is referring to moves also. This can lead to unforeseen evaluation
errors.
9. References to variables or cells by name are always absolute.
Locations can change without affecting results.
10. Remember that two cells on the same sheet cannot have the same
name. The same holds for two ranges on the same sheet.
Tips on Ranges
1. Use text on the sheet to indicate position and names of ranges
(remember that you can only highlight one range at a time).
2. Give ranges meaningful names. This will help you and others
understand your calculations.
3. Do not put text inside a range. FREE & EASY will think that the
text is a variable and give an evaluation error for that range.
4. Make sure that all cells, numbers and variables are completely
inside or outside the boundaries of the range.
5. Do not allow different ranges to overlap unless you have a specific
reason to do so.
6. Two ranges on the same sheet cannot have the same name. Thus, the
"copy from clipboard" menu item will not copy from the clipboard a
range which has the same name as a range already on the sheet.
page 8-4
7. Ranges can also be referred to by range address. The address can
be either relative or absolute.
Tips on File Management
1. Keep the files used to run FREE & EASY (F.EXE, FREE0.HLP and
FREE1.HLP) in a different directory than FREE & EASY sheet files
(*.FRE, *.MAK, *.TXT).
2. Give files meaningful names so that they are easier to manage.
3. Use the FREE & EASY default extensions (.FRE, .MAK and .TXT) as
this will help you keep track of your files.
4. Do not keep files from other programs in the same directory as your
FREE & EASY files.
5. Only use text (.TXT) files when you are importing or exporting
files to other programs or you wish to use the DOS "type" command to
print out a file.
6. For different projects, keep the files related to that project in
different directories.
7. Ensure the help files are in the current DOS path. As well, ensure
the DOS COMSPEC environment variable is set.
8. If you want to use the "DOS shell" command for file management and
manipulation, ensure the DOS files (usually in directory C:\DOS) are in
the current path.
Tips on Using Multiple Windows
1. Use multiple windows on large sheets to examine how changes on one
part of the sheet affect another part of the sheet.
2. To open more than one window at a time, you can use the shortcut
menu items such as "3 windows".
3. If you are working on more than one sheet at a time, put each sheet
in to a separate window.
4. Use the make file features to keep your window configurations
between FREE & EASY sessions.