CHARACTER UNITS

CHARACTER UNITS

Plot Control Command

Specifies whether the x and y coordinate positions for plot characters are in units of the current plot or in screeen units (0 to 100).

By default, when a plot is generated the coordinates for the plot characters are assumed to be in units of the current plot (referred to as data units).

There may be occassions where it is useful to have the coordinates specify screen units (i.e., 0 to 100). This is most likely when the plot character is being used in a labeling context. For example, it can sometimes be more efficient from a performance context to use the CHARACTER command rather than using a series of MOVE and TEXT commands to generate the labels.

The CHARACTER UNITS command can be used to specify whether data units or screen units will be used. Specifically,

DD	-	data units will be used for both the x and y coordinates
DS	-	data units will be used for the x coordinate and screen units will be used for the y coordinate
SD	-	screen units will be used for the x coordinate and data units will be used for the y coordinate
SS	-	screen units will be used for both the x and y coordinates

CHARACTER UNITS <val> <val> <val> ...
where <val> specifies the desired units.

Up to 100 character unit values can be specified.

CHARACTER UNITS SD DS
CHARACTER UNITS SD ALL

This command was motivated by the desire to improve the performance of DEXODP.DP of the macros for the 10-step analysis of 2-level full and fractional factorial designs. However, it can have utility outside of that application.

Characters are specified by trace. All characters belonging to the same trace are plotted using the same character units.

The BAR, SPIKE, CHARACTER, and LINE switch all work independently of each other. That is, a plot point can be a line, a character, a spike or a bar or any combination of the above.

The CHARACTER UNITS command with no arguments sets the character units to default for all traces. The CHARACTER UNITS command with the word ALL before or after the specified unit assigns that unit to the characters on all traces; thus CHARACTER UNIT SS ALL or CHARACTER UNIT ALL SS specifies screen units for both the x and y coordinates on all traces.

DD for all character traces

None

PLOT	=	Generates a data or function plot.
CHARACTERS	=	Sets the types for plot characters.
CHARACTERS	=	Sets the types for plot characters.
CHARACTER ANGLE	=	Sets the angle for plotting characters with the text command.
CHARACTER AUTOMATIC	=	Specifies a variable to be used as the arguments to the CHARACTER command.
CHARACTER CASE	=	Sets the cases for plot characters.
CHARACTERS COLORS	=	Sets the colors for plot characters.
CHARACTER FILL	=	Sets the fill switches for plot characters.
CHARACTER FONT	=	Sets the fonts for plot characters.
CHARACTER HW	=	Sets the heights and widths for plot characters.
CHARACTER JUSTIFICATION	=	Sets the justifications for plot characters.
CHARACTER OFFSET	=	Sets the offsets for plot characters.
CHARACTERS SIZES	=	Sets the sizes for plot characters.
CHARACTER THICKNESS	=	Sets the thicknesses for plot characters.
CHARACTER WIDTH	=	Sets the widths for plot characters.
LINES	=	Sets the types for plot lines.
SPIKE	=	Sets the on/off switches for plot spikes.
BAR	=	Sets the on/off switches for plot bars.

Presentaion Graphics

2018/02

 
. Step 1:   Read the data
.
dimension 200 columns
skip 25
read scott_8_16.dat y x1 to x8
skip 0
let n = size y
.
. Step 2:   Set plot control features
.
case asis
title case asis
label case asis
tic mark label case asis
.
xlimits 1 n
major x1tic mark number n
minor x1tic mark number 0
x1tic mark offset 0.5 0.5
x1tic mark labels off
.
ylimits -0.75 1
major y1tic mark number 8
y1tic mark label decimal 2
.
title Ordered Dex Plot
.
line blank
character circle
character hw 1 0.75 all
character fill on
.
. Step 3:   Generate the plot
.
set dex pareto plot order ascending
set dex ordered plot identification on
dex ordered plot y x1 to x8
.
. Step 4:   Plot the "-" and "+"
.
read dpst1f.dat zx zfact zcode
let zcode = code zcode
.
line blank blank
character - +
character size 1.5 all
.
let zfacts = zfact
let zfacts = 16   subset zfact = 1
let zfacts = 14.5 subset zfact = 2
let zfacts = 13   subset zfact = 3
let zfacts = 11.5 subset zfact = 4
let zfacts = 10   subset zfact = 5
let zfacts =  8.5 subset zfact = 6
let zfacts =  7   subset zfact = 7
let zfacts =  5.5 subset zfact = 8
.
tic marks off
tic mark labels off
label
title
pre-erase off
.
character units ds all
plot zfacts zx zcode