R.filesets: getChecksum.GenericDataFile – R documentation

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getChecksum.GenericDataFile

Gets the checksum of a file

Gets the checksum of a file.

## S3 method for class 'GenericDataFile'
getChecksum(this, write=NA, force=FALSE, verbose=FALSE, ...)

`write`	If `TRUE` or `NA` and a checksum file does not exists, then a checksum file is created, iff possible. If `NA` and the file could not be created, then it falls back to `FALSE`, but if `TRUE` an error is thrown. If `FALSE` and no checksum file exists, the checksum is calculated on the fly.
`force`	If `FALSE`, the file exists and has not be modified since, then the cached checksum is returned.
`verbose`	...
`...`	Not used.

Returns a character string, which can be NA if file is missing.

Henrik Bengtsson