You need to read up about finite precision arithmetic and floating point
representation. In brief, note that 2^64 requires 20 decimal digits, and
some bits in double precision must be given up to sign, exponent, etc.
leaving 53 bits for precision = 16 decimal digits. This is exactly the
number of d
Use colClasses argument in read.table to set the class of column:
For a file with two columns, where the first is string and the other is
numeric:
read.table('your_file.dat', colClasses = c('character', 'numeric'))
On Wed, Aug 12, 2009 at 1:43 PM, Andrew C wrote:
>
> Hi,
>
> I have a text (.da
2 matches
Mail list logo
