search for: fabien_tarrade

Displaying 6 results from an estimated 6 matches for "fabien_tarrade".

2016 Apr 10
5
what is the faster way to search for a pattern in a few million entries data frame ?
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2016 Apr 10
0
what is the faster way to search for a pattern in a few million entries data frame ?
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2016 Apr 10
2
what is the faster way to search for a pattern in a few million entries data frame ?
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2016 Apr 09
0
fast way to search for a pattern in a few million entries data frame
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2016 Apr 10
0
what is the faster way to search for a pattern in a few million entries data frame ?
On 10/04/2016 2:03 PM, Fabien Tarrade wrote: > Hi there, > > I have a data frame DF with 40 millions strings and their frequency. I > am searching for strings with a given pattern and I am trying to speed > up this part of my code. I try many options but so far I am not > satisfied. I tried: > - grepl and subset are equivalent in term of processing time >
2016 Apr 10
0
what is the faster way to search for a pattern in a few million entries data frame ?
On 04/10/2016 03:27 PM, Fabien Tarrade wrote: > Hi Duncan, >> Didn't you post the same question yesterday? Perhaps nobody answered >> because your question is unanswerable. > sorry, I got a email that my message was waiting for approval and when I > look at the forum I didn't see my message and this is why I sent it > again and this time I did check that the