Color.Vision.VingrysAndKingSmith: Scoring the results of the "D-15", "D-15DS" or "FM1OO-Hue"...

In CVD: Color Vision Deficiencies

Description

Color.Vision.VingrysAndKingSmith takes a vector with cap numbers from the "D-15", "D-15DS" or "FM1OO-Hue" tests and outputs the score by the method from Vingrys and King-Smith.

Usage

Color.Vision.VingrysAndKingSmith(capnumbers=NULL,testType='D-15',silent=TRUE)

Arguments

capnumbers	vector with cap numbers
testType	test type, one of "D-15", "D-15DS" or "FM1OO-Hue"
silent	logical, if TRUE then the function will send output to the screen, similarly to the original version

Value

Angle	confusion angle which identifies the type of color defect
MajRad	major moment of inertia
MinRad	minor moment of inertia
TotErr	error score or estimate of the severity of color defect
Sindex	Selectivity-Index which quantifies the amount of polarity or lack of randomness in a cap arrangement
Cindex	Confusion-Index which quantifies the degree of color loss relative to a perfect arrangement of caps

Author(s)

Jose Gama

References

Vingrys, A.J. and King-Smith, P.E. (1988). A quantitative scoring technique for panel tests of color vision. Investigative Ophthalmology and Visual Science, 29, 50-63.

Examples

Color.Vision.VingrysAndKingSmith(1:15,silent=FALSE)
#result from the original GW Basic version:
#SUMS OF U AND V              41.25999     -4.92
# ANGLE MAJ RAD MIN RAD TOT ERR S-INDEX C-INDEX
#    61.98     9.23     6.71    11.42     1.38     1.00
Color.Vision.VingrysAndKingSmith(1:15,'D-15DS',silent=FALSE)
#result from the original GW Basic version:
#SUMS OF U AND V              26.86001     -38.69
# ANGLE MAJ RAD MIN RAD TOT ERR S-INDEX C-INDEX
#    61.44     5.12     3.60     6.26     1.42     1.00
Color.Vision.VingrysAndKingSmith(1:85, 'FM1OO-Hue',silent=FALSE)
#result from the original GW Basic version:
#SUMS OF U AND V              423.7896      203.7294
# ANGLE MAJ RAD MIN RAD TOT ERR S-INDEX C-INDEX
#    54.15     2.53     1.97     3.20     1.28     1.00

Example output

[1] "SUMS OF U AND V"
41.26 -4.92 
[1] "STANDARD D-15"
ANGLE	MAJ RAD	MIN RAD	TOT ERR	S-INDEX	C-INDEX
	 61.97628 	 9.234668 	 6.711339 	 11.41583 	 1.37598 	 0.9999999$Angle
[1] 61.97628

$MajRad
[1] 9.234668

$MinRad
[1] 6.711339

$TotErr
[1] 11.41583

$Sindex
[1] 1.37598

$Cindex
[1] 0.9999999

[1] "SUMS OF U AND V"
26.86 -38.69 
[1] "DESATURATED D-15"
ANGLE	MAJ RAD	MIN RAD	TOT ERR	S-INDEX	C-INDEX
	 61.44063 	 5.121258 	 3.597554 	 6.258569 	 1.423539 	 0.9999999$Angle
[1] 61.44063

$MajRad
[1] 5.121258

$MinRad
[1] 3.597554

$TotErr
[1] 6.258569

$Sindex
[1] 1.423539

$Cindex
[1] 0.9999999

[1] "SUMS OF U AND V"
423.79 203.73 
[1] "FM-100 HUE"
ANGLE	MAJ RAD	MIN RAD	TOT ERR	S-INDEX	C-INDEX
	 54.15447 	 2.525248 	 1.966265 	 3.200481 	 1.284287 	 0.9999997$Angle
[1] 54.15447

$MajRad
[1] 2.525248

$MinRad
[1] 1.966265

$TotErr
[1] 3.200481

$Sindex
[1] 1.284287

$Cindex
[1] 0.9999997

CVD documentation built on May 2, 2019, 1:58 p.m.