Difference between revisions of "Gphistogram"
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(New page: == Interest == Sometimes one wants to explore the analysis results from f-k analysis differently from the standard option given in max2curve, i.e. displaying histograms of slowness ve...) |
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| + | gphistogram now fully replaces [[max2curve]]. This section and [[max2curve]] must be updated. | ||
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== Interest == | == Interest == | ||
Sometimes one wants to explore the analysis results from f-k analysis differently from the standard | Sometimes one wants to explore the analysis results from f-k analysis differently from the standard | ||
option given in [[max2curve]], i.e. displaying histograms of slowness versus frequency. The command line | option given in [[max2curve]], i.e. displaying histograms of slowness versus frequency. The command line | ||
| − | tool [[gphistogram]] allows you to do this by creating histogram displays (and further | + | tool [[gphistogram]] allows you to do this by creating histogram displays (and further maintaining the editing |
capabilities of [[max2curve]]) from simple two column input files (or from standard input). | capabilities of [[max2curve]]) from simple two column input files (or from standard input). | ||
Typical usage in the exploration of f-k analysis results would be a display of '''wavelength vs. phase velocity''' or | Typical usage in the exploration of f-k analysis results would be a display of '''wavelength vs. phase velocity''' or | ||
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Display azimuth versus slowness: | Display azimuth versus slowness: | ||
| − | awk ' | + | awk '!/#/{print $4, $3}' lep_ring01.max |\ |
gphistogram -x-min -0 -x-max 360 -x-count 72 -x-sampling linear \ | gphistogram -x-min -0 -x-max 360 -x-count 72 -x-sampling linear \ | ||
-y-min 0 -y-max 8 -y-count 100 -y-sampling linear | -y-min 0 -y-max 8 -y-count 100 -y-sampling linear | ||
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Display azimuth versus frequency: | Display azimuth versus frequency: | ||
| − | + | gphistogram lep_ring01.max -azimuth | |
| − | |||
| − | |||
Display wavelength versus slowness: | Display wavelength versus slowness: | ||
| − | awk ' | + | awk '!/#/{print 1./($2*$3), $3}' lep_ring01.max |\ |
gphistogram -x-min 0.0011 -x-max 5 -x-count 100 -x-sampling log \ | gphistogram -x-min 0.0011 -x-max 5 -x-count 100 -x-sampling log \ | ||
-y-min 0 -y-max 8 -y-count 100 -y-sampling linear | -y-min 0 -y-max 8 -y-count 100 -y-sampling linear | ||
| Line 31: | Line 31: | ||
Display wavelength versus velocity: | Display wavelength versus velocity: | ||
| − | awk ' | + | awk '!/#/{print 1./($2*$3), 1./$3}' lep_ring01.max |\ |
gphistogram -x-min 0.0011 -x-max 5 -x-count 100 -x-sampling log \ | gphistogram -x-min 0.0011 -x-max 5 -x-count 100 -x-sampling log \ | ||
-y-min 0 -y-max 3 -y-count 100 -y-sampling linear | -y-min 0 -y-max 3 -y-count 100 -y-sampling linear | ||
Latest revision as of 09:44, 4 January 2021
gphistogram now fully replaces max2curve. This section and max2curve must be updated.
Interest
Sometimes one wants to explore the analysis results from f-k analysis differently from the standard option given in max2curve, i.e. displaying histograms of slowness versus frequency. The command line tool gphistogram allows you to do this by creating histogram displays (and further maintaining the editing capabilities of max2curve) from simple two column input files (or from standard input). Typical usage in the exploration of f-k analysis results would be a display of wavelength vs. phase velocity or propagation azimuth vs. slowness or other quantities of interest. Certainly you can also use gphistogram for displaying other data ;-).
Examples
Display azimuth versus slowness:
awk '!/#/{print $4, $3}' lep_ring01.max |\
gphistogram -x-min -0 -x-max 360 -x-count 72 -x-sampling linear \
-y-min 0 -y-max 8 -y-count 100 -y-sampling linear
Display azimuth versus frequency:
gphistogram lep_ring01.max -azimuth
Display wavelength versus slowness:
awk '!/#/{print 1./($2*$3), $3}' lep_ring01.max |\
gphistogram -x-min 0.0011 -x-max 5 -x-count 100 -x-sampling log \
-y-min 0 -y-max 8 -y-count 100 -y-sampling linear
Display wavelength versus velocity:
awk '!/#/{print 1./($2*$3), 1./$3}' lep_ring01.max |\
gphistogram -x-min 0.0011 -x-max 5 -x-count 100 -x-sampling log \
-y-min 0 -y-max 3 -y-count 100 -y-sampling linear
