The amount
of
memory available
at
any time
is
displayed
in
the status area together
with
error
messages
when
necessary.
Getting
Started
BDDDDB
Figure 2.2 The
status
area
Figure 2,3 The display area
All graphs produced by
Easel
are shown
in
the display area.
Initially,
there
is
an empty bar graph
in
the display area marked
with
a grid
of
horizontal
and vertical lines. The horizontal lines correspond
to
the values shown on the vertical
axis
(Axis 2) and the vertical lines divide
the
graph
into
cells.
Each
cell
marks the position
where one value
of
a
set
of
figures
will
be plotted.
Each cell has a
cell label, along the horizontal axis (Axis
1).
Easel
automatically supplies
the text
':Jan':
"Feb"
and so on, up
to
"Dec"
for
cell labels but
you
can change the text
to
anything you
want.
Think
of
each
set
at
figures
as
a
row
of
cells,
each containing one
of
the values
to
be
plotted.
The Display Area
B
DB
Figure 2.4
The
control
area
Figure
2.5
The
crosswires
The control area shows the normal options: Help
(F1),
to
turn the prompts on and oft
(F2)
,
to
select a command
(F3)
and
to
cancel
an
incomplete selection (ESC).
In
addition,
there are four options that are specific
to
Easel.
These
are:
move the crosswires,
type
in
a number,
fype
in
text,
type
In
a formula,
Press the
light cursor
key
and hold
it
down briefly.
You
will
see the
vet1/cal
crosswire
moving across the screen, from left to light. The left and right arrow
keys
move
it
across
the screen.
The up and down Cursor
keys
move the horizontal crosswire.
12/84
The Control Area
THE
CROSSWIRES
3
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