read_excel

From readxl v1.0.0 by Jennifer Bryan

Read xls and xlsx files.

While read_excel() auto detects the format from the file extension, read_xls() and read_xlsx() can be used to read files without extension.

Usage

read_excel(path, sheet = NULL, range = NULL, col_names = TRUE,
  col_types = NULL, na = "", trim_ws = TRUE, skip = 0, n_max = Inf,
  guess_max = min(1000, n_max))
read_xls(path, sheet = NULL, range = NULL, col_names = TRUE,
  col_types = NULL, na = "", trim_ws = TRUE, skip = 0, n_max = Inf,
  guess_max = min(1000, n_max))
read_xlsx(path, sheet = NULL, range = NULL, col_names = TRUE,
  col_types = NULL, na = "", trim_ws = TRUE, skip = 0, n_max = Inf,
  guess_max = min(1000, n_max))

Arguments

path: Path to the xls/xlsx file
sheet: Sheet to read. Either a string (the name of a sheet), or an integer (the position of the sheet). Ignored if the sheet is specified via range. If neither argument specifies the sheet, defaults to the first sheet.
range: A cell range to read from, as described in cell-specification. Includes typical Excel ranges like "B3:D87", possibly including the sheet name like "Budget!B2:G14", and more. Interpreted strictly, even if the range forces the inclusion of leading or trailing empty rows or columns. Takes precedence over skip, n_max and sheet.
col_names: TRUE to use the first row as column names, FALSE to get default names, or a character vector giving a name for each column. If user provides col_types as a vector, col_names can have one entry per column, i.e. have the same length as col_types, or one entry per unskipped column.
col_types: Either NULL to guess all from the spreadsheet or a character vector containing one entry per column from these options: "skip", "guess", "logical", "numeric", "date", "text" or "list". If exactly one col_type is specified, it will be recycled. The content of a cell in a skipped column is never read and that column will not appear in the data frame output. A list cell loads a column as a list of length 1 vectors, which are typed using the type guessing logic from col_types = NULL, but on a cell-by-cell basis.
na: Character vector of strings to use for missing values. By default, readxl treats blank cells as missing data.
trim_ws: Should leading and trailing whitespace be trimmed?
skip: Minimum number of rows to skip before reading anything, be it column names or data. Leading empty rows are automatically skipped, so this is a lower bound. Ignored if range is given.
n_max: Maximum number of data rows to read. Trailing empty rows are automatically skipped, so this is an upper bound on the number of rows in the returned tibble. Ignored if range is given.
guess_max: Maximum number of data rows to use for guessing column types.

Value

A tibble

Examples

# NOT RUN {
datasets <- readxl_example("datasets.xlsx")
read_excel(datasets)

# Specify sheet either by position or by name
read_excel(datasets, 2)
read_excel(datasets, "mtcars")

# Skip rows and use default column names
read_excel(datasets, skip = 148, col_names = FALSE)

# Recycle a single column type
read_excel(datasets, col_types = "text")

# Specify some col_types and guess others
read_excel(datasets, col_types = c("text", "guess", "numeric", "guess", "guess"))

# Accomodate a column with disparate types via col_type = "list"
df <- read_excel(readxl_example("clippy.xlsx"), col_types = c("text", "list"))
df
df$value
sapply(df$value, class)

# Limit the number of data rows read
read_excel(datasets, n_max = 3)

# Read from an Excel range using A1 or R1C1 notation
read_excel(datasets, range = "C1:E7")
read_excel(datasets, range = "R1C2:R2C5")

# Specify the sheet as part of the range
read_excel(datasets, range = "mtcars!B1:D5")

# Read only specific rows or columns
read_excel(datasets, range = cell_rows(102:151), col_names = FALSE)
read_excel(datasets, range = cell_cols("B:D"))
# }

Documentation reproduced from package readxl, version 1.0.0, License: GPL-3

Community examples

nxskok@gmail.com at May 29, 2018 readxl v0.1.1

Note that the Excel spreadsheet must be local (a URL does not work). Example of creating, writing and reading a spreadsheet: ```{r} d=tribble( ~x, ~y, 1, 10, 2, 12, 3, 13, 4, 12 ) d l=list(d) openxlsx::write.xlsx(l, file = "thing.xlsx") d2=read_excel("thing.xlsx") d2 ```