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visualFields (version 0.2-8)

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

389

Version

0.2-8

License

GPL (>= 2.0)

Maintainer

Ivan MarinFranch

Last Published

November 14th, 2012

Functions in visualFields (0.2-8)

loads visual fields from a set of XML files

probability values for visual field index

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

a vf-object with sample data

percentiles for global indices

demographics and statistics of sample in visual-fields object vf

lidLensArtifact

visual fields with lid or lens artifacts

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

ring legend for p-values

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

probability map for pattern deviation

Wrapup for createviewport in package grid

plot with the PoPLR analysis

percentiles for visual field index

standard deviations of normative values

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

Settings of visualField object

visualField objects

percentiles for adjusted TD rank curve

general height estimated as the rankRef-th ranked TD location

extracts from a loaded XML file the info of a tag

progression by linear ordinary least squares

normative values for TD rank curve

Color code for TD or PD probability maps

linear model for age effect on visual sensitivity

filterReliability

identify visual fields that did not pass filter for reliability

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

sort vf-objects

visual field plot

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

loads visual fields from a XML file

percentiles for TD rank curve

version of normative values used at present in visualFields

probability map for total deviation

SUNY-IU normative reference values for Standard Automatic Perimetry

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

gray scales for sensitivities

a vf-object with sample data

vflayout_legoplot

legoplot visualization for change in sensitivities over time of visual fields

visual field data plot

extracts a block from the XML file

load visual fields from a CSV file

Settings of visual field index

visualFields-package

Statistical methods for visual fields

printout with results for the visual field

pattern deviation

percentiles for each location

histogram for PoPLR analysis

total-deviation rank curve

stimulus location and size

visual field stats

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

two-dimensional quadratic fitting for visual-field results

probability values for visual field global indices

get normative values and location map

permutation of Pointwise Linear Regression (PoPLR)

visual field index

select visits per subject from a vf-object

layout displaying the PoPLR analysis

extracts visual-field sensitivity values

total deviation

set normative values and location map