progression.schell2014: Schell 2014 VF progression

In vfprogression: Visual Field (VF) Progression Analysis and Plotting Methods

Description

progression.schell2014 returns the progression criterion after Schell et al. 2014, which is essentially like CIGTS but with MD, and only one follow-up is enough to confirm progression.

Usage

progression.schell2014(measmatrix)

Arguments

measmatrix

is a data frame. MUST contain the following columns: 'md' (mean deviation) and 'eyeid'. Rows represent the single measurements. The minimum measurements (rows) is 4.

Value

"stable", "worsening", or "improving" of measurements in measmatrix. Note: If a VF series is temporarily improving and temporarily worsening, it is assumed to be "stable" overall

See Also

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4495761/

Examples

data(vf.schell2014)
colnames(vf.schell2014)
progression.schell2014(vf.schell2014)
progression.schell2014(vf.schell2014[vf.schell2014$eyeid == 1,])
progression.schell2014(vf.schell2014[vf.schell2014$eyeid == 2,])

vfprogression documentation built on May 24, 2019, 5:10 p.m.