berryFunctions (version 1.22.5)

around: View values around an index

Description

View index rows of a data.frame with n surrounding rows

Usage

around(x, i, n1 = 2, n2 = n1, convert = is.logical(i))

Value

Nothing, calls View

Arguments

x

Data.frame

i

Index (logical or integers)

n1

Number of elements shown before each i. DEFAULT: 2

n2

Number of elements shown after each i. DEFAULT: n1

convert

Use which to get the row numbers? DEFAULT: TRUE if i is boolean

Author

Berry Boessenkool, , Nov 2016

See Also

sortDF, View

Examples

if (FALSE)  ## View should not be used in examples
myDF <- data.frame(A=1:30, B=cumsum(rnorm(30)))
myDF[c(5,7,23,29),1] <- NA
around(myDF, i=is.na(myDF$A))
around(myDF, i=c(11,19), n2=0)