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