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54mb
2005 Dec 13
1
Technique for reading large sparse fwf data file
...tains a dot (.)
The data are binary in almost all columns, with only a few columns containing whole numbers, which I believe requires 2 bytes for the binary and 4 for the others. So, by my calculations (assuming 4 bytes for all cells to create an upperbound) I should need around 92890 * 1620 * 4 = 574MB to read in these data and about twice that for analyses. My computer has 3GB.
But, I am unable to read in the file even though I have allocated sufficient memory to R for this.
My first question is do the dots in the empty cells consume additional memory? I am assuming the answer is yes and bel...