Search Archives
Search tips
from:Name
Search by author name, e.g. from:Duncan Murdoch
"exact phrase"
Match an exact phrase
word1 word2
Match messages containing both words
Date range
Use the date pickers to filter results to a time period
Use the list dropdown to narrow results to a specific mailing list. Combine from: with other terms to filter by author and content.
No, it's not much faster. I'd say it's faster about 10-15% in my case. I dont want neither plyr or data.table package because our software on the server does not support R version over 2...
Hello everyone, I was asked to repost this again, sorry for any inconvenience. I'm looking replacement for ddply function from plyr package. Function allows to apply function by category stored in any column/columns. Regular loops or lapplys slow...
Thank you all for suggestions, they were great and informative. I will surely use data.tables in future when our server will be upgraded for now this is solution that I used. This solution performs exactly same task and produces...
Thank you for suggestions, apparently data.table is much quicker than ddply and it's fantastic to use. I forgot to mention in my topic I'm looking for alternative in R 2.10 version as on my platform our...
Dear all, I have encountered problem when developing application. My linear regression does give different results depending on architecture. Following example describes my problem perfectly. xxx <- data.frame(a=c(0.2,0.2,0.2,0.2,0.2...
Can't find what you're looking for? Try searching with Google .