1Histogram_params(3NCARG) NCAR GRAPHICS Histogram_params(3NCARG)
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6 Histogram_params - This document briefly describes all histogram
7 internal parameters. The Histogram utility has four parameter setting
8 routines: HSTOPC sets parameters of type CHARACTER; HSTOPI sets
9 parameters of type INTEGER; HSTOPL sets parameters of type LOGICAL;
10 HSTOPR sets parameters of type REAL.
11
13 Parameters of type CHARACTER set in calls to entry HSTOPC:
14 FOR Format for class labels. Default is ´(G10.3)´.
16 TIT A main title of up to 96 characters. Only 45 characters
18 are written per line so up to 3 lines may be written. The
19 default is no title.
20 LAB A label for the class interval (histogram bar) axis.
22 Default value is ´CLASS INTERVALS´ when the HSTOPL option
23 ´MID=OFF´ is selected, and ´CLASS MIDVALUES´ when ´MID=ON´.
24 PTI The percent axis label. Default value when ´PTI=OFF´ is
26 ´PERCENT OCCURRENCE´ when IFLAG = 0, or 1, and ´PERCENT of
27 MAXIMUM´ when IFLAG = 2, or 3.
28 FQN The frequency axis label. Default value is ´FREQUENCY´.
30 CHR A concatenated string of class interval labels. Default is
32 that class labels will be internally computed numeric
33 values (real or integer.)
34
36 COL Eight components of the graphic can be assigned colors.
37 Default is that all components of the graphic are assigned
38 the color white (background color black.)
39 CLA Allows the size and orientation of class labels to be
41 altered. Defaults are medium sized characters with a
42 horizontal alignment.
43
45 HOR Defines whether histogram bars will be draw horizontally or
46 vertically. Default is vertical bars.
47 PER Determines whether a percentage axis is drawn as a second
49 axis on the opposite side of the frame from the normal
50 frequency axis. Default is a second axis.
51 MID Determines if class labels are placed at the midpoint of
53 each class interval, or if the class interval end points
54 are labeled. Default is labels at the midpoints.
55 SHA Determines whether histogram bars are to be shaded.
57 Default is shaded bars.
58 Devices will vary as to how they interpret shading.
60 DRL Determines if lines are to be drawn through the histogram
62 bars where Y-axis tick marks would occur. Default is no
63 line.
64 MED Determines if a line is drawn through the median value of
66 all points. Default is no median line.
67 NMV Determines if missing values are to be subtracted from the
69 number of input points before bin percentages are computed.
70 The default is to subtract out the missing values. HSTOPR
71 option MVA must be ON to activate this option.
72 PMV Determines if the number of input points and the number of
74 missing values are to be printed on the plot. The default
75 is to not print. HSTOPR option MVA must be ON to activate
76 this option.
77 PRM Determines if a perimeter is to be drawn around the
79 histogram. Default is no perimeter.
80 FRA Determines whether the frame is advanced after the
82 histogram is drawn. Default is a frame advance.
83 LIS Determines if all the options along with their values are
85 to be printed on the standard output. Default is no
86 printed output.
87 DEF A global default switch which allows all parameters to be
89 returned to their default states in one call. All
90 parameters begin at their default values.
91
93 WIN Defines a rectangular region of the total frame in NDC´s
94 where the current histogram is to be plotted. For example,
95 XMIN=0., XMAX=.5, YMIN=.5, and YMAX=1. would specify the
96 upper left quadrant of the frame. Default is the total
97 frame is used.
98 SPA Defines the amount of spacing between histogram bars and
100 and the amount of overlap of histogram bars. Default
101 values: spacing = 2.0, overlap = -1.0 This will yield
102 spacing between bars on a single histogram and overlap of
103 bars in the comparison of two histograms.
104 MVA Defines a special value which can be inserted in the data
106 stream to indicate that the true data value is missing, and
107 a testing tolerance which allows the special values to be
108 detected. See also parameters PMV, and NMV. Default
109 values: special value = -9999., tolerance = 1.E-10.
110
112 Online: histogram, histgr, hstopc, hstopi, hstopl, hstopr, ncarg_cbind
113 Hardcopy: NCAR Graphics Fundamentals, UNIX Version
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117 Copyright (C) 1987-2007
118 University Corporation for Atmospheric Research
119 This documentation is free software; you can redistribute it and/or
121 modify it under the terms of the GNU General Public License as
122 published by the Free Software Foundation; either version 2 of the
123 License, or (at your option) any later version.
124 This software is distributed in the hope that it will be useful, but
126 WITHOUT ANY WARRANTY; without even the implied warranty of
127 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
128 General Public License for more details.
129 You should have received a copy of the GNU General Public License along
131 with this software; if not, write to the Free Software Foundation,
132 Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
133UNIX March 1993 Histogram_params(3NCARG)