1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
Variable selection panel
These are the variable selection boxes, each of which is associated
with one variable, that is, one column of the input matrix. The
variable selection boxes act as buttons which respond to mouse clicks
by selecting and 'deselecting' variables for plotting. A selected
variable is indicated by a highlighted label in the corresponding
variable selection box.
Above the variable panel is a bit of text to remind the user of the
mouse actions to perform to select and deselect variables. This
behavior depends on whether XGobi is in a two-variable plotting mode,
initiated by selecting XY Plot, a three-variable mode, initiated by
selecting Rotate, or in Tour, with three or more variables.
In XY Plot, a horizontal line is drawn in the variable circle of the X
variable and a vertical line in that of the Y variable.
In the three-variable mode, if "Y Axis" is selected, one Y variable is
plotted vertically against a linear combination of two X variables, and
the horizontal lines appearing in the variable circles are proportional
in length to the coefficients of the two X variables. If "X Axis" is
selected, a linear combination of two variables rotates about the
horizontal axis in the plane of the screen; now the vertical lines are
proportional in length to the coefficients of the Y variables.
In Tour mode, the lines in the variable circles are oblique, and
provide information about the magnitude and direction of the
contribution of each variable. The circle interior to one of the
variable circles indicates that this variable is available for manual
manipulation (see help under the Manip menu for more information on
variable manipulation). It is also possible to "freeze" a variable's
contribution to the tour, and when frozen the variable circle has a
smaller dashed interior circle.
In Corr mode, the lines in the variable circles are horizontal or
vertical, indicating the magnitude of the contribution of the variable
to either horizontal or vertical directions in the plot. The small
arcs interior to the variable circles indicate variables available for
manipulation. Arcs at top and bottom mean that the variable's
contribution can be manipulated vertically, and arcs at left and right
indicate that horizontal manipulation. It is also possible to "freeze"
a variable's contribution to the tour, and when frozen the variable
circle has a smaller dashed interior arc.
Here is a more detailed description of the selection behavior in each
of the three modes.
One-variable plotting, initiated as DotPlot:
Left click always ignored
Middle click
the active variable generate a new dot plot for this variable
an inactive variable this variable replaces the active variable
Two-variable plotting, initiated as XYPlot:
Left click
an inactive variable this variable replaces the active X
the active Y variable X and Y are exchanged
Middle click
an inactive variable this variable replaces the active Y
the active X variable X and Y are exchanged
Three-variable plotting, initiated as Rotate:
In this mode, we use the idea that a variable can be the
"last touched," and then it is targeted for replacement. The
"last touched" variable is indicated with a small circle in the
center of its variable circle, suggesting a target.
Y axis:
Here, only the horizontally plotted variables can be
last_touched.
Left click
an X variable this variable becomes the last touched
an inactive variable replaces the last touched X
the active Y variable is exchanged with the last touched X
Middle click
an inactive variable this variable replaces Y
an X variable the selected X is exchanged with Y
X axis:
Here, only the vertically plotted variables can be
last_touched.
Left click
an inactive variable this variable replaces X
a Y variable the selected Y is exchanged with X
Middle click
a Y variable this variables becomes the last touched
an inactive variable replaces the last touched Y
the active X variable is exchanged with the last touched Y
Oblique axis:
Any click
an active variable becomes last touched
an inactive variable replaces the last touched variable
Tour:
Left or middle click:
an inactive variable this variable becomes part of the next basis
an active variable this variable is removed from the next basis
Holding Shift with a left or middle click:
the manip variable nothing
any other variable this variable becomes the manip variable
Holding Ctrl with a left or middle click:
a frozen variable unfreezes this variable, so its contribution
to the tour is unrestricted
any other ACTIVE var this variable's contribution becomes frozen
Corr:
Left click:
active X variable this variable is removed from the next basis
unless it is the only active X variable
inactive variable this variable is added the the active X list
active Y variable this variable is removed from the active Y
list and added to the active X list
Middle click:
active Y variable this variable is removed from the next basis
unless it is the only active Y variable
inactive variable this variable is added the the active Y list
active X variable this variable is removed from the active X
list and added to the active Y list
Holding Shift with left click:
X manip variable nothing
any other variable this variable becomes the X manip variable
Holding Shift with right click:
Y manip variable nothing
any other variable this variable becomes the Y manip variable
Holding Ctrl with a left click:
a frozen X variable unfreezes this variable, so its contribution
to the horizontal is unrestricted
any ACTIVE X var this variable's contribution horizontally
becomes frozen
Holding Ctrl with a middle click:
a frozen Y variable unfreezes this variable, so its contribution
to the vertical is unrestricted
any ACTIVE Y var this variable's contribution vertically
becomes frozen
The partitioning of the space between the control panels, the plot
window, the variable selection panel can be made by positioning the
cursor above the little rectangles (called grips) that are at the
bottom of the lines separating these regions, then pressing one of the
mouse buttons and moving the cursor to the left or right. If this
still doesn't result in a good division of space between the plot
window and the variable selection panel, you might want to adjust
the height and width of PlotWindow or VarPanel using your XGobi
resource file.
Of special interest are these resources:
*XGobi*VarPanel.width: 200
*XGobi*VarLabel.width: 34
*XGobi*VarWindow.width: 34
Column labels can be supplied in a file named fname.col, where fname
or fname.data is the name of the data file, one label per row.
|
