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2016 Apr 10
5
what is the faster way to search for a pattern in a few million entries data frame ?
...scientific research. Fascinated by finance and data modelling. Geneva, Switzerland Email : <mailto:contact at fabien-tarrade.eu>contact at fabien-tarrade.eu Phone : <http://www.fabien-tarrade.eu>www.fabien-tarrade.eu Phone : +33 (0)6 14 78 70 90 LinkedIn <http://ch.linkedin.com/in/fabientarrade/> Twitter <https://twitter.com/fabtar> Google <https://plus.google.com/+FabienTarradeProfile/posts> Facebook <https://www.facebook.com/fabien.tarrade.eu> Google <skype:fabtarhiggs?call> Xing <https://www.xing.com/profile/Fabien_Tarrade>
2016 Apr 10
0
what is the faster way to search for a pattern in a few million entries data frame ?
...nance and data modelling. > > Geneva, Switzerland > > Email : <mailto:contact at fabien-tarrade.eu>contact at fabien-tarrade.eu > Phone : <http://www.fabien-tarrade.eu>www.fabien-tarrade.eu > Phone : +33 (0)6 14 78 70 90 > > LinkedIn <http://ch.linkedin.com/in/fabientarrade/> Twitter > <https://twitter.com/fabtar> Google > <https://plus.google.com/+FabienTarradeProfile/posts> Facebook > <https://www.facebook.com/fabien.tarrade.eu> Google <skype:fabtarhiggs?call> > Xing <https://www.xing.com/profile/Fabien_Tarrade> > ___...
2016 Apr 10
2
what is the faster way to search for a pattern in a few million entries data frame ?
...ientific research. Fascinated by finance and data modelling. Geneva, Switzerland Email : contact at fabien-tarrade.eu <mailto:contact at fabien-tarrade.eu> Phone : www.fabien-tarrade.eu <http://www.fabien-tarrade.eu> Phone : +33 (0)6 14 78 70 90 LinkedIn <http://ch.linkedin.com/in/fabientarrade/> Twitter <https://twitter.com/fabtar> Google <https://plus.google.com/+FabienTarradeProfile/posts> Facebook <https://www.facebook.com/fabien.tarrade.eu> Google <skype:fabtarhiggs?call> Xing <https://www.xing.com/profile/Fabien_Tarrade>
2016 Apr 09
0
fast way to search for a pattern in a few million entries data frame
...ientific research. Fascinated by finance and data modelling. Geneva, Switzerland Email : contact at fabien-tarrade.eu <mailto:contact at fabien-tarrade.eu> Phone : www.fabien-tarrade.eu <http://www.fabien-tarrade.eu> Phone : +33 (0)6 14 78 70 90 LinkedIn <http://ch.linkedin.com/in/fabientarrade/> Twitter <https://twitter.com/fabtar> Google <https://plus.google.com/+FabienTarradeProfile/posts> Facebook <https://www.facebook.com/fabien.tarrade.eu> Google <skype:fabtarhiggs?call> Xing <https://www.xing.com/profile/Fabien_Tarrade>
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