[R] adding rows without loops

2013-05-22 Thread Adeel Amin
I'm comparing a variety of datasets with over 4M rows. I've solved this problem 5 different ways using a for/while loop but the processing time is murder (over 8 hours doing this row by row per data set). As such I'm trying to find whether this solution is possible without a loop or one in which

Re: [R] adding rows without loops

2013-05-23 Thread Adeel Amin
, 2013 12:15 AM To: Adeel Amin; r-help@r-project.org Subject: RE: [R] adding rows without loops Merge should do the trick. How to best use it will depend on what you want to do with the data after. The following is an example of what you could do. This will perform best, if the rows

[R] R issue with unequal large data frames with multiple columns

2013-05-02 Thread Adeel Amin
I'm a bit of an amateur R programmer. I can do simple R scenarios but my handle on complex grammatical issues isn't steady. I have 12 CSV files that I've read into dataframes. Each has 8 columns and over 200 rows. Each dataframe has data associated by time component and a date component in