Set options for utils::read.csv(), openxlsx::read.xlsx() or
readxl::read_excel. Choose delimiter and decimal separator as well
as sheetnumbner and number of rows to read.
dataOptions(
nrows = NA_integer_,
colNames = TRUE,
sep = ",",
dec = ".",
fileEncoding = "",
sheet = 1
)a list of extra options for utils::read.csv() or openxlsx::read.xlsx() or
readxl::read_excel, respectively
integer: the maximum number of rows to read in. Negative and other invalid values are ignored.
If TRUE, the first row of data will be used as column names.
the field separator character. Values on each line of the
file are separated by this character. If sep = "" (the
default for read.table) the separator is ‘white space’,
that is one or more spaces, tabs, newlines or carriage returns.
the character used in the file for decimal points.
character string: if non-empty declares the
encoding used on a file (not a connection) so the character data can
be re-encoded. See the ‘Encoding’ section of the help for
file, the ‘R Data Import/Export’ manual and
‘Note’.
The name or index of the sheet to read data from.