Gphistogram - Revision history

Marc at 09:44, 4 January 2021

2021-01-04T09:44:19Z

Marc: /* Examples */

2021-01-04T09:42:21Z

Examples

Mao: 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...

2010-03-11T09:17:09Z

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...

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 versus frequency. The command line
tool [[gphistogram]] allows you to do this by creating histogram displays (and further maintianing 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 'substr($1,1,1)!="#" {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:

awk 'substr($1,1,1)!="#" {print $4, $2}' lep_ring01.max |\
gphistogram -x-min -0 -x-max 360 -x-count 72 -x-sampling linear \
-y-min 0.5 -y-max 25 -y-count 100 -y-sampling log

Display wavelength versus slowness:

awk 'substr($1,1,1)!="#" {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 'substr($1,1,1)!="#" {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

@@ Line 1: / Line 1: @@
 == 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 maintianing the editing
+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

@@ Line 13: / Line 13: @@
 Display azimuth versus slowness:
-  awk 'substr($1,1,1)!="#" {print $4, $3}' lep_ring01.max |\
+  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
@@ Line 19: / Line 19: @@
 Display azimuth versus frequency:
-  awk 'substr($1,1,1)!="#" {print $4, $2}' lep_ring01.max |\
+  gphistogram lep_ring01.max -azimuth
 Display wavelength versus slowness:
-  awk 'substr($1,1,1)!="#" {print 1./($2*$3), $3}' lep_ring01.max |\
+  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
@@ Line 31: / Line 29: @@
 Display wavelength versus velocity:
-  awk 'substr($1,1,1)!="#" {print 1./($2*$3), 1./$3}' lep_ring01.max |\
+  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