[R] ff objects saving problem

Hi, I am running the examples in page 70 of the ff package document, but it failed with the following error cat(let's create some ff objects\n) let's create some ff objects n - 8e3 a - ff(sample(n, n, TRUE), vmode=integer, length=n, filename=d:/tmp/a.ff) b - ff(sample(255, n, TRUE),

Re: [R] ff objects saving problem

Xiaobo, You indeed need external 'zip' and 'unzip' utlities in the path, citing from ffsave's help: using an external zip utility, e.g. for windows in Rtools on [http://www.murdoch-sutherland.com/Rtools/];. Please note that the mentioned utilities have a 4 GB limit for the zip file, AFAIK. I

Re: [R] ff objects saving problem

Hi Jens, I have installed RTools, on my Win XP SP3 notebook, there are still errors when running the examples, cat(let's create some ff objects\n) let's create some ff objects n - 8e3 a - ff(sample(n, n, TRUE), vmode=integer, length=n, filename=d:/tmp/a.ff) b - ff(sample(255, n, TRUE),