search for: gowanuscanalconservancy

Displaying 1 result from an estimated 1 matches for "gowanuscanalconservancy".

2012 Feb 26
6
loop for a large database
Yes, I am a newbie. I have a data.frame (MyTable) of 1445846 rows and 15 columns with character data. And a character vector (MyVector) of 473491 elements. I want simply to get a data.frame with the count of how many times each element of MyVector appears in MyTable. I've tried a loop with : for (i in 1 : length (myvector)) sum (MyTable== i) but it crashes my computer. I've also