Read in specified lines from a text file

Description

Read in specified lines from a text file

Usage

get_lines(filename, line_numbers)

Arguments

Details

Line numbers larger than the number of lines in the file are ignored. Missing values are returned for these.

Value

Returns a character vector with the specified lines.

See Also

See readLines to read in all lines a text file; sample_lines can be used to read in random lines.

Examples

writeLines(letters[1:20], con="tmp.csv")
get_lines("tmp.csv", c(1, 10))

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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Type 'demo()' for some demos, 'help()' for on-line help, or
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> library(LaF)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/LaF/get_lines.Rd_%03d_medium.png", width=480, height=480)
> ### Name: get_lines
> ### Title: Read in specified lines from a text file
> ### Aliases: get_lines
> 
> ### ** Examples
> 
> writeLines(letters[1:20], con="tmp.csv")
> get_lines("tmp.csv", c(1, 10))
[1] "a" "j"
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>