Package 'readODS'

Title: Read and Write ODS Files
Description: Read ODS (OpenDocument Spreadsheet) into R as data frame. Also support writing data frame into ODS file.
Authors: Gerrit-Jan Schutten [aut], Chung-hong Chan [aut, cre] , Peter Brohan [aut], Detlef Steuer [aut] , Thomas J. Leeper [aut] , John Foster [ctb], Sergio Oller [ctb], Jim Hester [ctb] , Stephen Watts [ctb], Arthur Katossky [ctb], Stas Malavin [ctb], Duncan Garmonsway [ctb], Mehrad Mahmoudian [ctb], Matt Kerlogue [ctb], Michal Lauer [ctb], Till Straube [ctb], Marcin Kalicinski [ctb, cph] (Author of included RapidXML code)
Maintainer: Chung-hong Chan <[email protected]>
License: GPL-3
Version: 2.3.1
Built: 2024-11-06 09:38:35 UTC
Source: CRAN

Help Index


Get information in an (F)ODS File

Description

list_ods_sheets lists all sheets in an (f)ods file. The function can be used for listing sheets in both ods and flat ods files. (list_fods_sheets) is also available, which can only list sheets in flat ods files.

Usage

list_ods_sheets(
  path,
  include_external_data = FALSE,
  ods_format = c("auto", "ods", "fods"),
  guess = FALSE
)

list_fods_sheets(path, include_external_data = FALSE)

ods_sheets(path)

Arguments

path

Path to the (f)ods file

include_external_data

A boolean value to show or hide sheets containing archived linked data (default false)

ods_format

character, must be "auto", "ods" or "fods". The default "auto" is to determine the format automatically. By default, the format is determined by file extension, unless guess is FALSE.

guess

logical, If the file extension is absent or not recognized, this controls whether we attempt to guess format based on the file signature or "magic number".

Details

The default "include_external_data" for ods_sheets is TRUE to maintain compatibility with version 1 of readODS. It will change to TRUE in version 3.

Value

A character vector of sheet names

Author(s)

Peter Brohan [email protected], Chung-hong Chan [email protected], Gerrit-Jan Schutten [email protected]

See Also

use read_ods to read the data

Examples

## Not run: 
# Get the list of names of sheets
list_ods_sheets("starwars.ods")
list_ods_sheets("starwars.fods")
# Using list_fods_sheets, although you don't have to
list_fods_sheets("starwars.fods")

## End(Not run)

Read Data From (F)ODS File

Description

read_ods is a function to read a single sheet from an (f)ods file and return a data frame. The function can be used for reading both ods and flat ods files. (read_fods) is also available, which can only read flat ods files.

Usage

read_ods(
  path,
  sheet = 1,
  col_names = TRUE,
  col_types = NULL,
  na = "",
  skip = 0,
  formula_as_formula = FALSE,
  range = NULL,
  row_names = FALSE,
  strings_as_factors = FALSE,
  verbose = FALSE,
  as_tibble = TRUE,
  .name_repair = "unique",
  ods_format = c("auto", "ods", "fods"),
  guess = FALSE,
  trim_ws = TRUE,
  n_max = Inf
)

read_fods(
  path,
  sheet = 1,
  col_names = TRUE,
  col_types = NULL,
  na = "",
  skip = 0,
  formula_as_formula = FALSE,
  range = NULL,
  row_names = FALSE,
  strings_as_factors = FALSE,
  verbose = FALSE,
  as_tibble = TRUE,
  .name_repair = "unique",
  trim_ws = TRUE,
  n_max = Inf
)

Arguments

path

path to the (f)ods file.

sheet

sheet to read. Either a string (the sheet name), or an integer sheet number. The default is 1.

col_names

logical, indicating whether the file contains the names of the variables as its first line. Default is TRUE.

col_types

Either NULL to guess from the spreadsheet or refer to readr::type_convert() to specify cols specification. It can also be a shorthand such as "ccf" ("character", "character", "factor"), a list, or an object created by readr::cols(). NA will return a data frame with all columns being "characters". Please note that it will not speed up the reading by a lot by specifying this parameter explicitly. It is more for accuracy.

na

Character vector of strings to use for missing values. By default read_ods converts blank cells to missing data. It can also be set to NULL, so that empty cells are treated as NA.

skip

the number of lines of the data file to skip before beginning to read data. If this parameter is larger than the total number of lines in the ods file, an empty data frame is returned.

formula_as_formula

logical, a switch to display formulas as formulas "SUM(A1:A3)" or as the resulting value "3"... or "8".. . Default is FALSE.

range

selection of rectangle using Excel-like cell range, such as range = "D12:F15" or range = "R1C12:R6C15". Cell range processing is handled by the cellranger::as.cell_limits(). If sheet name is in the range, such as range = "Sheet2!A2:B7", this sheet name is used instead of the provided sheet. If sheet is not the default value (1), a warning is given.

row_names

logical, indicating whether the file contains the names of the rows as its first column. Default is FALSE.

strings_as_factors

logical, if character columns to be converted to factors. Default is FALSE.

verbose

logical, if messages should be displayed. Default is FALSE.

as_tibble

logical, if the output should be a tibble (as opposed to a data.frame). Default is TRUE.

.name_repair

A string or function passed on as .name_repair to tibble::as_tibble()

  • "minimal": No name repair

  • "unique" : Make sure names are unique and not empty

  • "check_unique": Check names are unique, but do not repair

  • "universal" : Checks names are unique and valid R variables names in scope

  • A function to apply custom name repair.

Default is "unique".

ods_format

character, must be "auto", "ods" or "fods". The default "auto" is to determine the format automatically. By default, the format is determined by file extension, unless guess is FALSE.

guess

logical, If the file extension is absent or not recognized, this controls whether we attempt to guess format based on the file signature or "magic number".

trim_ws

logical, should leading and trailing whitespace be trimmed?

n_max

numeric, Maximum number of data rows to read. Ignored if range is given.

Value

A tibble (tibble) or data frame (data.frame) containing a representation of data in the (f)ods file.

Author(s)

Peter Brohan [email protected], Chung-hong Chan [email protected], Gerrit-Jan Schutten [email protected]

Examples

## Not run: 
# Read an ODS file
read_ods("starwars.ods")
# Read a specific sheet, e.g. the 2nd sheet
read_ods("starwars.ods", sheet = 2)
# Read a specific range, e.g. A1:C11
read_ods("starwars.ods", sheet = 2, range = "A1:C11")
# Read an FODS file
read_ods("starwars.fods")
# Read a specific sheet, e.g. the 2nd sheet
read_ods("starwars.fods", sheet = 2)
# Read a specific range, e.g. A1:C11
read_ods("starwars.fods", sheet = 2, range = "A1:C11")
# Give a warning and read from Sheet1 (not 2)
read_ods("starwars.fods", sheet = 2, range = "Sheet1!A1:C11")
# Specifying col_types as shorthand, the third column as factor; other by guessing
read_ods("starwars.ods", col_types = "??f")
# Specifying col_types as list
read_ods("starwars.ods", col_types = list(species = "f"))
# Using read_fods, although you don't have to
read_ods("starwars.fods")

## End(Not run)

Write Data to (F)ODS File

Description

Function to write a single data frame or a list of data frames to a (f)ods file.

Usage

write_ods(
  x,
  path = tempfile(fileext = ".ods"),
  sheet = "Sheet1",
  append = FALSE,
  update = FALSE,
  row_names = FALSE,
  col_names = TRUE,
  na_as_string = FALSE,
  padding = FALSE
)

write_fods(
  x,
  path = tempfile(fileext = ".fods"),
  sheet = "Sheet1",
  append = FALSE,
  update = FALSE,
  row_names = FALSE,
  col_names = TRUE,
  na_as_string = FALSE,
  padding = FALSE
)

Arguments

x

data frame or list of data frames that will be sheets in the (f)ods. If the list is named, the names are used as sheet names

path

Path to the (f)ods file to write

sheet

Name of the sheet; ignore if x is a list of data frames

append

logical, TRUE indicates that x should be appended to the existing file (path) as a new sheet. If a sheet with the same sheet_name exists, an exception is thrown. See update. Please also note that writing is slightly slower if TRUE. Default is FALSE. Ignore if x is a list of data frames

update

logical, TRUE indicates that the sheet with sheet_name in the existing file (path) should be updated with the content of x. If a sheet with sheet_name does not exist, an exception is thrown. Please also note that writing is slightly slower if TRUE. Default is FALSE. Ignore if x is a list of data frames

row_names

logical, TRUE indicates that row names of x are to be included in the sheet. Default is FALSE

col_names

logical, TRUE indicates that column names of x are to be included in the sheet. Default is TRUE

na_as_string

logical, TRUE indicates that NAs are written as string; FALSE indicates that NAs are written as empty cells

padding

logical, TRUE indicates that the sheet is padded with repeated empty cells to the maximum size, either 2^20 x 1024 (if the number of columns of x is less than or equal 1024) or 2^20 x 16,384 (otherwise). This is the default behaviour of Microsoft Excel. Default is FALSE

Details

This function emulates writexl::write_xlsx() except in the handling of list columns. The expected behaviour for this is undefined and the two functions behave differently. This function handles list columns by converting them to character vectors of R code (similar to the output of dput()), which is probably not ideal.

Value

A (F)ODS file written to the file path location specified by the user. The value of path is also returned invisibly

Author(s)

Detlef Steuer [email protected], Thomas J. Leeper [email protected], John Foster [email protected], Chung-hong Chan [email protected]

Examples

## Not run: 
# preserve the row names
write_ods(mtcars, "mtcars.ods", row_names = TRUE)
# append a sheet to an existing file
write_ods(PlantGrowth, "mtcars.ods", append = TRUE, sheet = "plant")
# This is however faster
write_ods(list("Sheet1" = mtcars, "plant" = PlantGrowth), "mtcars.ods", row_names = TRUE)
# write flat ODS file
write_fods(mtcars, "mtcars.fods", sheet = "mtcars")

## End(Not run)