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Hello, I have a data of Patents from OECD in delimited text format with IPC being one column, I want to filter the data by selecting only certain IPC in that column and delete other rows which do not have my required IPCs. Please, can anybody guide me doing it, also the IPC codes are string variables. The data is somewhat like below, but its a huge dataset containing more than 11 million rows

...lruan1/Desktop/1112.csv", "|", escape_double = FALSE, trim_ws = TRUE) df_new <- subset(df,df$IPC == 'H04M001/02'| df$IPC == 'C07K016/26' ) You can add more condition with "|" in the subset function. Good luck! On Wed, Jan 3, 2018 at 2:53 PM, Saptorshee Kanto Chakraborty < chkstr at unife.it> wrote: > Hello, > > I have a data of Patents from OECD in delimited text format with IPC being > one column, I want to filter the data by selecting only certain IPC in that > column and delete other rows which do not have my required IPCs. Ple...

Hello, i don't like asking stupid questions in mailinglist, 'cause i guess you got something better to do than answer it. But well this is an exception, because i didn't find anything on google. Here comes my problem: I'm using a NetBSD 1.6.0 System with the latest dovecot build. i want to start dovecot imapd by: root at balin:[/etc]$ ./rc.d/dovecot start Starting dovecot.

...lated by the Financial Services Authority in the UK and is regulated by the Dubai Financial Services Authority. Permal (Singapore) Pte. Limited, Company Registration Number 200711607C, is regulated by the Monetary Authority of Singapore. Permal (Japan) K.K., Registration Number: Director General of Kanto Local Finance Bureau ("KLFB") (FlEA) No. 2335, is authorized by the KLFB in Japan as a non-discretionary investment adviser. [[alternative HTML version deleted]]