https://github.com/finnishcancerregistry/fwf

Read and write fixed-width format data.
https://github.com/finnishcancerregistry/fwf

data-export data-import data-processing epidemiology file-format fixed-width-format fwf io r-package tabular-data text-data

Last synced: about 1 month ago
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Read and write fixed-width format data.

• Host: GitHub
• URL: https://github.com/finnishcancerregistry/fwf
• Owner: FinnishCancerRegistry
• License: other
• Created: 2023-03-27T18:12:42.000Z (about 2 years ago)
• Default Branch: master
• Last Pushed: 2025-03-06T11:08:20.000Z (about 2 months ago)
• Last Synced: 2025-03-06T12:22:50.720Z (about 2 months ago)
• Topics: data-export, data-import, data-processing, epidemiology, file-format, fixed-width-format, fwf, io, r-package, tabular-data, text-data
• Language: R
• Homepage:
• Size: 17.6 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: NEWS.md
  • License: LICENSE

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README

        


# Package `fwf`

`fwf` is a tiny package to read and write fixed width format tables.

[![R-CMD-check](https://github.com/FinnishCancerRegistry/fwf/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/FinnishCancerRegistry/fwf/actions/workflows/R-CMD-check.yaml)

# Example

```r

# Remember, data types other than character, integer, and double may not

# be properly handled (because meta-information about datatype is lost when

# writing into a text file). See ?data.table::fread for more control.

# over reading behaviour.

exp <- data.frame(

  col1 = c("abcdefghijklmn", "abc"),

  col2 = c(1e6L, 1L),

  col3 = as.Date(c("2000-01-01", "2001-01-01"))

)

tf <- tempfile(pattern = "fwf_file_", fileext = ".txt")

fwf::fwf_write(exp, tf)

obs <- fwf::fwf_read(

  path = tf,

  fread_arg_list = list(colClasses = c(col3 = "Date"))

)

stopifnot(

  all.equal(exp, obs, check.attributes = FALSE),

  identical(lapply(exp, class), lapply(obs, class))

)

```

# Installation

```r

devtools::install_github("FinnishCancerRegistry/fwf")

````