1. From: Disease Progression in Patients with Dominant Retinitis Pigmentosa and Rhodopsin Mutations
Invest. Ophthalmol. Vis. Sci ;43(9):
Figure Legend:
Baseline ocular function in patients with rhodopsin mutations. The stem-and-leaf method of display allows presentation of data in grouped form while preserving the individual data points to at least two significant digits. Numbers of patients are 123 (visual acuity), 137 (visual field area), and 131 (ERG amplitude). Each distribution was significantly different from normal (Shapiro-Wilk test, P < in each case). The rule for combining the stem and leaf is given at the bottom of the display. For example, in the bottom row (for ln ERG amplitude) the stem is −2 and the first leaf (to the right of the short vertical line) is 5. The stem is multiplied by 1 and the leaf is multiplied by −0.1 (because the stem is negative), and the two numbers are added together to obtain −2.5. This data point, therefore, represents −2.5 ln μV. The displays were generated with online software (provided in the public domain and available at
Date of download: 10/27/2017
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