Description Usage Arguments Value See Also Examples
progression.vfi
returns the progression criterion used in Aptel et al. (2015).
1 | progression.vfi(measmatrix)
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measmatrix |
is a data frame. MUST contain the following columns: 'vfi' (visual field index), 'yearsfollowed', and 'eyeid'. Rows represent the single measurements. The minimum measurements (rows) is 3. |
"stable", "worsening", or "improving" of measurements in timepoints
https://www.ncbi.nlm.nih.gov/pubmed/26095771/
1 2 3 4 5 | data(vf.vfi)
colnames(vf.vfi)
progression.vfi(vf.vfi)
progression.vfi(vf.vfi[vf.vfi$eyeid == 1,])
progression.vfi(vf.vfi[vf.vfi$eyeid == 2,])
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