On 7/27/2010 2:54 PM, Liang Zhou wrote:
> Hi all,
> I'm new to Fastbit, and I'm trying to compute histogram between two
> columns. However, I'm not sure what the first arg 'constraints' means,
> and I cannot find explanation on it throughout the doc. Any help would
> be very grateful! Thanks!
>
> Regards,
> Liang
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I tried to put NULL as constraints, but the program terminates and I
receive "Microsoft Visual Studio C Runtime Library has detected a fatal
error in FastBitTest.exe.". The program is trapped in dbghook.c....I
don't know what's gone wrong as I'm using Fastbit input dir 'tmpTest'
generated from the simplest test file 'test0.csv' with
ibis::table *tbl = ibis::table::create("tmpTest");
vector<uint32_t> counts;
tbl->getHistogram2D(NULL, "a", 0, 80, 1, "b", 0, 80, 1, counts);
Thanks!
Liang
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