Fitting and Comparing Signals

Example e81: Fitting and Comparing Signals

This example creates a full potential field at the nodes. By fitting this signal, the example attempts to recreate the full field. The degreee of success is determined by comparing the two signals. The effect of using linear basis functions and cubic-hermite basis function to fit the signal are compared.

This example tests ...

fitting a reduced a signal to create a potential field at all nodes (history file)
comparing different signals

The comfile run by this example is as follows:

# Example e81 
# -----------
#


#----------------------------------------------------------#
#
# Fitting and comparing signals
#
#----------------------------------------------------------#


fem def para;r;torsoslice;example
fem def regi;r;torsoslice;example
fem def node;r;;example region 1..2
fem def base;r;;example
fem def elem;r;;example region 1..2


#
#----------------------------#
# Setup equations
#----------------------------#
#
fem def equa;r;;example region 1..2
fem def mate;r;;example region 1..2
fem def init;r;;example region 1..2
fem def sour;r;;example region 2
fem def coup;r;;example
fem def solv;r;torsoslice;example coupled region 1..2

Additional testing commands:

fem solve coupled
fem eva elec;slice his slice fr nod ele 46..57 cou as reg 1..2


#
#----------------------------#
# Fitting with cubic hermite 
#  basis fns
#----------------------------#
#
fem def fiel;r;slice_cub;example region 1
fem def elem;r;slice_cub;example field region 1


fem def fit;r;slice_cub;example signal region 1 class 2
fem fit signal ascii region 1 class 2
fem eva ele;fitted_cub his fitted_cub from nod elec 46..57 coup asc reg 1 using fit class 2


fem comp sig mast slice comp fitted_cub elec 1..12 asc reg 1 tim 0.1
fem comp sig mast slice comp fitted_cub elec 1..12 asc reg 1 tim 0.2
fem comp sig mast slice comp fitted_cub elec 1..12 asc reg 1 st 0.1 end 0.3
fem comp sig mast slice comp fitted_cub elec 1..12 asc reg 1 inte


#
#----------------------------#
# Fitting with linear basis fns
#----------------------------#
#
fem def fiel;r;slice_lin;example region 1
fem def elem;r;slice_lin;example field region 1


fem def fit;r;slice_lin;example signal region 1 class 3
fem fit signal ascii region 1 class 3
fem eva ele;fitted_lin his fitted_lin from nod elec 46..57 coup asc reg 1 using fit class 3


fem comp sig mast slice comp fitted_lin elec 1..12 asc reg 1 tim 0.1
fem comp sig mast slice comp fitted_lin elec 1..12 asc reg 1 tim 0.2
fem comp sig mast slice comp fitted_lin elec 1..12 asc reg 1 st 0.1 end 0.3
fem comp sig mast slice comp fitted_lin elec 1..12 asc reg 1 inte


#
#----------------------------#
# Fitting with spline 
#----------------------------#
#
fem def node;r;spline;example reg 3
fem def elem;r;spline;example reg 3
fem def fiel;r;slice_lin;example region 1
fem def elem;r;slice_lin;example field region 1


fem def data;r;spline;example reg 3
fem def xi;r;spline;example   reg 3
fem def fit;r;spline;example spline class 4
fem fit signal spline offset_fit 6 electrodes_per_row 12 rows 1 mesh_offset 66 class 4
fem eva ele;fitted_spline his fitted_spline from nod elec 46..57 coup asc reg 1 using fit class 4
fem comp sig mast slice comp fitted_spline elec 1..12 asc reg 1 inte

Files used by this example are:

Name                   Modified     Size

example_e81.com        20-Nov-2001  662 
slice_cub.ipelfd       10-Apr-2000  2.5k
slice_cub.ipfiel       10-Apr-2000  2.8k
slice_cub.ipfit        13-Apr-2007  2.1k
slice_lin.ipelfd       10-Apr-2000  2.5k
slice_lin.ipfiel       10-Apr-2000  1.7k
slice_lin.ipfit        13-Apr-2007  1.9k
spline.ipdata          10-Apr-2000  514 
spline.ipelem          10-Apr-2000  3.6k
spline.ipfit           10-Apr-2000  513 
spline.ipnode          10-Apr-2000  2.2k
spline.ipxi            10-Apr-2000  432 
test_output.com        20-Nov-2001  2.0k
torsoslice.ipbase      10-Apr-2000  1.9k
torsoslice.ipcoup      21-Aug-2002  464 
torsoslice.ipcoup.old  10-Apr-2000  413 
torsoslice.ipexpo      10-Apr-2000  684 
torsoslice.ipmate      10-Apr-2000   81 
torsoslice.ippara      26-Feb-2003  5.9k
torsoslice.ipregi      10-Apr-2000   93 
torsoslice.ipsour      11-Jun-2002   78k
torsoslice.irelem      10-Apr-2000  6.8k
torsoslice.irequa      26-May-2003  2.3k
torsoslice.irinit      10-Apr-2000  8.7k
torsoslice.irmate      10-Apr-2000  155 
torsoslice.irnode      10-Apr-2000  7.2k
torsoslice.irsolv      13-Apr-2007  2.2k

Download the entire example:

Name                      Modified     Size

examples_e_e8_e81.tar.gz  14-Apr-2007   22k

Testing status by version:

	Status	Tested	Real time (s)
i686-linux
cm	Success	Sun Mar 6 00:02:35 2016	1
cm-debug	Success	Sat Mar 5 00:04:55 2016	1
mips-irix
cm	Success	Sun Aug 19 01:43:08 2007	11
cm-debug	Success	Wed Aug 15 01:31:52 2007	18
cm-debug-clear-malloc	Success	Sat Aug 18 01:38:44 2007	23
cm-debug-clear-malloc7	Success	Mon Aug 20 01:35:07 2007	22
cm64	Success	Sun Aug 19 01:42:56 2007	13
cm64-debug	Success	Tue Aug 21 01:30:17 2007	19
cm64-debug-clear-malloc	Success	Thu Apr 1 12:10:42 2004	8
rs6000-aix
cm	Success	Wed Mar 4 01:09:03 2009	2
cm-debug	Success	Mon Mar 2 01:08:00 2009	4
cm64	Success	Wed Mar 4 01:09:22 2009	2
cm64-debug	Success	Tue Mar 3 01:13:18 2009	4
x86_64-linux
cm	Success	Sun Mar 6 00:01:07 2016	1
cm-debug	Success	Sat Mar 5 00:01:38 2016	0

Testing status by file:

cmiss_test.log

i686-linux
Success	cm:	cmiss_test.log.retain.
Success	cm-debug:	cmiss_test.log.retain.
mips-irix
Success	cm:	cmiss_test.log.retain.
Success	cm-debug:	cmiss_test.log.retain.
Success	cm-debug-clear-malloc:	cmiss_test.log.retain.
Success	cm-debug-clear-malloc7:	cmiss_test.log.retain.
Success	cm64:	cmiss_test.log.retain.
Success	cm64-debug:	cmiss_test.log.retain.
Success	cm64-debug-clear-malloc:	cmiss_test.log.retain.
rs6000-aix
Success	cm:	cmiss_test.log.retain.
Success	cm-debug:	cmiss_test.log.retain.
Success	cm64:	cmiss_test.log.retain.
Success	cm64-debug:	cmiss_test.log.retain.
x86_64-linux
Success	cm:	cmiss_test.log.retain.
Success	cm-debug:	cmiss_test.log.retain.

cmiss_test.out

i686-linux
Success	cm:	ndiff test: no significant differences with generic answer.
Success	cm-debug:	ndiff test: no significant differences with generic answer.
mips-irix
Success	cm:	ndiff test: no significant differences with generic answer.
Success	cm-debug:	ndiff test: no significant differences with generic answer.
Success	cm-debug-clear-malloc:	ndiff test: no significant differences with generic answer.
Success	cm-debug-clear-malloc7:	ndiff test: no significant differences with generic answer.
Success	cm64:	ndiff test: no significant differences with generic answer.
Success	cm64-debug:	ndiff test: no significant differences with generic answer.
Success	cm64-debug-clear-malloc:	ndiff test: no significant differences with generic answer.
rs6000-aix
Success	cm:	ndiff test: no significant differences with generic answer.
Success	cm-debug:	ndiff test: no significant differences with generic answer.
Success	cm64:	ndiff test: no significant differences with generic answer.
Success	cm64-debug:	ndiff test: no significant differences with generic answer.
x86_64-linux
Success	cm:	ndiff test: no significant differences with generic answer.
Success	cm-debug:	ndiff test: no significant differences with generic answer.

Html last generated: Sun Mar 6 05:51:28 2016

Input last modified: Fri Apr 13 10:42:05 2007

CMISS Help / Examples / e / e8 / e81