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
|
#
# Analysis command descriptions:
# menu label/description
# file templates for this command (* for all files)
# "menu" (add to menu) |"bind" (bind to key)
# analysis command line
#
hmenu Funtools
# 1D histogram params for a table
param thist
column entry "Enter column name to histogram" pi "(histo)"
bins entry "Enter [min:max:]bins" 0 "('0' for default number of bins)"
bwidth checkbox "Use bin width instead of number of bins?" 0
norm checkbox "Normalize by bin size?" 0
end
# 1D histogram params for an image
param ihist
bins entry "Enter [min:max:]bins" 0 "('0' for default number of bins)"
end
# Light Curve params
param ltc
bins entry "Enter [min:max:]bins" 0 "('0' for default number of bins)"
bwidth checkbox "Use bin width instead of number of bins?" 0
norm checkbox "Normalize by time?" 0
end
# funcen
param funcen
niter entry "Number of iterations" 5
tol entry "Pixel tolerance distance" 1
disp checkbox "Display refined region(s)?" 1
ftype checkbox "Use image filtering?" 0 "(default: event filter)"
end
help Funtools Overview
Funtools Tasks in DS9
The tasks in this section of the Analysis menu utilize the Funtools
programs 'funcnts', 'funhist', and 'funcen':
1. Radial Profile Plot: run funcnts and pass results through funcnts.plot.
Both source and background regions can be specified.
2. Histogram Plot: run funhist on any column of a binary table and
pass results through funhist.plot
3. Light Curve Plot: run funhist on 'time' column of a binary table
and pass results through funhist.plot
4. Energy Spectrum Plot: run funhist on 'pi' column of a binary table
and pass results through funhist.plot
5. Counts in Regions: run funcnts and display textual output.
Both source and background regions can be specified.
6. Refine Positions for Binary Tables: run funcen (binary tables only)
and display textual output. The input region(s) can be replaced by the
refined regions.
7. Column Histogram: run funhist on any column of a binary table and
display textual output.
8. Image Histogram: run funhist on image data and display textual output.
All of these tasks work off the original disk-based FITS file. The
funcnts-based tasks (radial profile, counts in regions) present their
results using WCS units, if the appropriate info is present in the
FITS header.
For situations where a disk file is not available (e.g., image data
generated by a program and sent to DS9's 'fits' XPA access point),
alternate versions of the radial profile and counts in regions tasks
are offered that work from DS9's internal image data. In these two
cases, results are presented in pixels. Aside from the units, the
results should be identical to the file-based results.
For more sophisticated analysis, please consider using the underlying
Funtools tasks directly. These are documented at:
http://hea-www.harvard.edu/saord/funtools/programs.html
endhelp
Radial Profile Plot (annulus regions; options: none)
*
menu
PRE funds9 funcnts_plot "$xpa" "$filename" "$regions(source,,)" "$regions(background,,)" POST | $plot(stdin)
Histogram Plot (any column; options: column name, number of bins)
*
menu
$param(thist); PRE funds9 funhist_plot "$xpa" "$filename[$regions]" "$norm $bwidth" "$column" "$bins" POST | $plot(stdin)
Light Curve Plot ("time" column; options: number of bins)
*
menu
$param(ltc); PRE funds9 funhist_plot "$xpa" "$filename[$regions]" "$norm $bwidth" time "$bins" POST | $plot(stdin)
Energy Spectrum Plot ("pi" column; options: none)
*
menu
PRE funds9 funhist_plot "$xpa" "$filename[$regions]" "0 0" "pi" "$bins" POST | $plot(stdin)
Counts in Regions (any regions; options: none)
*
menu
PRE funds9 funcnts "$xpa" "$filename" "$regions(source,,)" "$regions(background,,)" POST | $text
Refine Positions for Binary Tables (options: niter, tol, display, filtertype)
*
menu
$param(funcen); PRE funds9 funcen "$xpa" "$filename" "$regions(source,,)" $niter $tol $disp $ftype POST | $text
Column Histogram (any column; options: colname, <min:max:>bins)
*
menu
$param(thist); PRE funds9 funhist "$xpa" "$filename[$regions]" "$norm $bwidth" "$column" "$bins" POST | $text
Image Histogram (options: <min:max:>bins)
*
menu
$param(ihist); $data | PRE funhist "stdin[$regions]" xy "$bins" POST | $text
---
Radial Profile Plot in Pixels using DS9's Internal Image Data (annulus regions)
*
menu
$data | PRE funcnts -rpG stdin "$regions(source,,)" "$regions(background,,)" | funcnts.plot -file "$filename" ds9 POST | $plot(stdin)
Counts in Regions in Pixels using DS9's Internal Image Data (any regions)
*
menu
$data | PRE funcnts -rp stdin "$regions(source,,)" "$regions(background,,)" POST | $text
---
end
|
