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visualFields (version 0.5.5)

Statistical Methods for Visual Fields

Description

A collection of tools for analyzing the field of vision. It provides a framework for development and use of innovative methods for visualization, statistical analysis, and clinical interpretation of visual-field loss and its change over time. It is intended to be a tool for collaborative research.

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Version

Install

install.packages('visualFields')

Monthly Downloads

331

Version

0.5.5

License

GPL (>= 3.0)

Maintainer

Ivan Marin-Franch

Last Published

November 12th, 2018

Functions in visualFields (0.5.5)

pattern deviation

histogram for PoPLR analysis

pattern deviation from general height rank (GHr)

converts to (x,y) in degrees from polar coordinates

load visual fields from a CSV file

xy-position mapping between HFA device convention and visualFields convention for patterns of location

loads visual fields from a XML file

xy-position mapping between CSP-custom-device convention (William H Swanson perimeter) and visualFields convention for patterns of location

xy-position mapping between FDP device convention and visualFields convention for patterns of location

standard deviations of normative values

lidLensArtifact

visual fields with lid or lens artifacts

GLM fit for TD rank curve

Angle of incidence in the OCT scan corresponding to angle of incidence in optic nerve head

normative values for TD rank curve

two-dimensional quadratic fitting for visual-field results

color legend for p-values in td and pd probability plots

stimulus location and size

probability map for total deviation

average GC displacement from [1]

Wrapup for createviewport in package grid

Import visual field data from Haag-Streit Eyesuite

Angle of incidence in the optic nerve head for vf locations

IU normative reference values for Contrast Sensitiviy Perimetro. Alpha version!!!

SUNY-IU normative reference values for static automated perimetry

probability map for pattern deviation

demographics and statistics of sample in visual-fields object vf

environment with the current normative values used visualFields

general height estimated from rank TD curve

total deviation

percentiles for TD rank curve

percentiles for global indices

Short-term retest static automated perimetry data

probability map for pattern deviation from global sensitivity estimate

permutation of Pointwise Linear Regression (PoPLR)

gray scales for sensitivities

Conditional retest distribution

Settings of visual field index

ring legend for p-values

select visits per subject from a vf-object

printout with results for the visual field

total-deviation rank curve

permutation of pointwise linear regression (PoPLR): calculation of the combined statistic

Settings of visualField object

Average path of a nerve fiber bundle function generator

SUNY-IU control data for static automated perimetry 10-2 SITA Standard

filterReliability

identify visual fields that did not pass filter for reliability

visual field index

a vf-object with SAP sample data

percentiles for adjusted TD rank curve

a vf-object with SAP sample data

Color code for TD or PD probability maps

average of vf-objects

get normative values and location map

visualField objects

visual field data plot

calculate line segments to plot in vfplot representing the overall orientation of the retinal nerve fibre layer bundles according to Jansonious map [1]

percentiles for visual field index

visualFields-package

Statistical methods for visual fields

printout with results for the visual field

general height estimated as the rankRef-th ranked TD location

layout displaying the PoPLR analysis

extracts a block from the XML file

extracts total-deviation values, pattern-deviation values, total-deviation probability values, and pattern-deviation probability values

probability values for visual field index

extracts from a loaded XML file the info of a tag

visual field plot

vflayout_progress

progression analysis layout

plot with the PoPLR analysis

sort vf-objects

visual field stats

loads visual fields from a set of XML files

percentiles for each location

Permutation of Pointwise Linear Regression (PoPLR): calculation of the p-value

progression by linear ordinary least squares

standard deviations of normative values of PD from general-height-rank

set normative values and location map

Calculates the location of the GC soma corresponding to vf locations

a vf-object with CSP sample data with

probability values for visual field global indices

Voronoi tessellation of vf spatial testing locations

extracts visual-field sensitivity values

dxtraction of (x,y)-coordinates of tested locations

convert from Cartesian coordinate to polar coordinates for use with the Jansonius map

linear model for age effect on visual sensitivity