Read Dataset

Reads a data file and returns it as dataset object.

Usage

readDataset(
  file,
  ...,
  header = TRUE,
  sep = ",",
  quote = "\"",
  dec = ".",
  fill = TRUE,
  comment.char = "",
  fileEncoding = "UTF-8"
)

Arguments

file

A CSV file (see read.table).

...

Further arguments to be passed to read.table.

header

A logical value indicating whether the file contains the names of the variables as its first line.

sep

The field separator character. Values on each line of the file are separated by this character. If sep = "," (the default for readDataset) the separator is a comma.

quote

The set of quoting characters. To disable quoting altogether, use quote = "". See scan for the behavior on quotes embedded in quotes. Quoting is only considered for columns read as character, which is all of them unless colClasses is specified.

dec

The character used in the file for decimal points.

fill

logical. If TRUE then in case the rows have unequal length, blank fields are implicitly added.

comment.char

character: a character vector of length one containing a single character or an empty string. Use "" to turn off the interpretation of comments altogether.

fileEncoding

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'.

Value

Returns a Dataset object. The following generics (R generic functions) are available for this result object:

• names() to obtain the field names,

• print() to print the object,

• summary() to display a summary of the object,

• plot() to plot the object,

• as.data.frame() to coerce the object to a data.frame,

• as.matrix() to coerce the object to a matrix.

Details

readDataset is a wrapper function that uses read.table to read the CSV file into a data frame, transfers it from long to wide format with reshape and puts the data to getDataset().

See also

• readDatasets() for reading multiple datasets,

• writeDataset() for writing a single dataset,

• writeDatasets() for writing multiple datasets.

Examples

if (FALSE) { # \dontrun{
dataFileRates <- system.file("extdata",
    "dataset_rates.csv",
    package = "rpact"
)
if (dataFileRates != "") {
    datasetRates <- readDataset(dataFileRates)
    datasetRates
}

dataFileMeansMultiArm <- system.file("extdata",
    "dataset_means_multi-arm.csv",
    package = "rpact"
)
if (dataFileMeansMultiArm != "") {
    datasetMeansMultiArm <- readDataset(dataFileMeansMultiArm)
    datasetMeansMultiArm
}

dataFileRatesMultiArm <- system.file("extdata",
    "dataset_rates_multi-arm.csv",
    package = "rpact"
)
if (dataFileRatesMultiArm != "") {
    datasetRatesMultiArm <- readDataset(dataFileRatesMultiArm)
    datasetRatesMultiArm
}

dataFileSurvivalMultiArm <- system.file("extdata",
    "dataset_survival_multi-arm.csv",
    package = "rpact"
)
if (dataFileSurvivalMultiArm != "") {
    datasetSurvivalMultiArm <- readDataset(dataFileSurvivalMultiArm)
    datasetSurvivalMultiArm
}
} # }