im.csv.read {lakhesis}

Read csv File to Incidence Matrix

Description

Wrapper around the read_csv function from the readr package (Wickham et al. 2024). Read a .csv file in which the first column represents row elements and the second column represents column elements, and convert it into an incidence matrix.

Usage

im.csv.read(
  filename,
  header = FALSE,
  characterencoding = "iso-8859-1",
  remove.hapax = FALSE
)

Arguments

filename

The filename to uploaded (must be in .csv format).

header

If the .csv file contains a header. Default is FALSE.

characterencoding

File encoding as used by locale. Default is "iso-8859-1" to handle special characters.

remove.hapax

Remove any row or column which has a sum of 1 (i.e., is only attested once), since they do not directly contribute to the result of the seriation. Default is FALSE.

Value

An incidence matrix of binary values (0 = row/column occurrence is absence; 1 = row/column occurrence is present).

References

Wickham H, Hester J, Bryan J (2024). readr: Read Rectangular Text Data. R package version 2.1.5, https://github.com/tidyverse/readr, https://readr.tidyverse.org.