BreakoutDetection
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Segfault with constant input and `exact=F`
Tested on two linux machines (rehel and ubuntu) with R3.1.1.
> library(BreakoutDetection)
> breakout(rep.int(20, 1000), exact = F)
*** caught segfault ***
address 0xfffffffc039ffa30, cause 'memory not mapped'
Traceback:
1: .Call("BreakoutDetection_EDM_tail", PACKAGE = "BreakoutDetection", Z, min_size, alpha, quant)
2: Analysis(Zcounts, min.size, alpha)
3: breakout(rep.int(20, 1000), exact = F)
Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace
I think what is happening is that the method is trying to transform the data so that it maps to the interval [0,1]. However, since all of the values are the same there will be a division by 0. So R returns NaN, but I don't thin that the C++ code knows how to handle this.