[R] safest way to subset (and replace) a data.table

Benjamin Tyner btyner @end|ng |rom gm@||@com
Sat Dec 7 16:22:05 CET 2019


I would like to replace a data.table 'DT' with a subset of itself, where 
the subset is determined by an expression 'expr' which evaluates to 
logical. Thus far I've been using:

    DT <- DT[expr, ]

however this frequently results in a SIGABRT from glibc of the form:

    "double free or corruption (!prev): 0x00000000c08662b40"

I've tried under the latest version of R and the latest version of data 
table, but the issue still persists. So now I'm wondering if I'm doing 
it the wrong way.

Any advice?



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