locf: Last Observation Carried Forward
In rmngb: Miscellaneous Collection of Functions for Medical Data Analysis

Returns the last non-missing observation in a vector.

locf(x)

x

vector.

Scalar corresponding to the last non-missing observation.

Antoine Filipovic Pierucci

tab <- data.frame(a1 = c(1, 4, 6),
                  a2 = c(3, NA, NA),
                  a3 = c(4, NA, 5))
apply(tab, 1, locf)

rmngb documentation built on May 29, 2017, 9:22 p.m.

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