fill.na {mefa}R Documentation

Replace <NA> Values with Nearest Above Values

Description

The function replaces <NA> values with the nearest values above them in the same column.

Usage

fill.na(x)

Arguments

x a matrix or data frame.

Details

This function is useful when converting a 'notebook style' data into an 'stcs' object. The 'notebook style' data means that observations are registered in a non-redundant way, e.g. when typing in a spreadsheet.

Value

A matrix or a data frame.

Note

This function is not vectorized, so can be a bit slow for large data sets.

Author(s)

Péter Sólymos, solymos@ualberta.ca

References

Sólymos P. 2008. mefa: an R package for handling and reporting count data. Community Ecology 9, 125–127.

http://mefa.r-forge.r-project.org/

See Also

stcs

Examples

x <- data.frame(
    samp = c("s1",NA,"s2",NA,"s3","s4"),
    taxa = c("t1",NA,"s1","s2","s3",NA),
    count = c(1, 2, 10, 3, 4, 1),
    segm = c("male","female","male","female","male","male"))
x
fill.na(x)

[Package mefa version 3.0-0 Index]