HP 50G, User Manual

Page: 414 / 887

Page 12-31
accommodate the maximum value in column 1 of
Σ
DAT. Bar plots are useful
when plotting categorical (i.e., non-numerical) data.
Suppose that you want to plot the data in column 2 of the
Σ
DAT matrix:
Θ
Press
„ô
, simultaneously if in RPN mode, to access to the PLOT SETUP
window.
Θ
Press
˜˜
to highlight the
Col:
field and type 2
@@@OK@@@
, followed by
L @@@OK@@@
.
Θ
Press
„ò
, simultaneously if in RPN mode, to access to the PLOT SETUP
window.
Θ
Change V-View to read
V-View: 0 6
Θ
Press
@ERASE @DRAW
.
Θ
Press
@CANCL
to return to the PLOT WINDOW screen, then
$
to return to
normal calculator display.
Scatter plots
We will use the same
Σ
DAT matrix to produce scatter plots. First, we will plot
the values of y vs. x, then those of y vs. z, as follows:
Θ
Press
„ô
, simultaneously if in RPN mode, to access to the PLOT SETUP
window.
Θ
Change
TYPE
to
Scatter
.
Θ
Press
˜˜
to highlight the
Cols
:
field. Enter
1 @@@OK@@@ 2 @@@OK@@@
to
select column 1 as X and column 2 as Y in the Y-vs.-X scatter plot.
Θ
Press
L @@@OK@@@
to return to normal calculator display.
Θ
Press
„ò
, simultaneously if in RPN mode, to access the PLOT
WINDOW screen.
Θ
Change the plot window ranges to read:
H-View: 0 6
,
V-View: 0 6
.