search for: 1250000

Hello all, I'm using R version 2.0.1. I have been having trouble with my linear modeling. I have a table that looks something like this: T RSS DS S LS PF COLS PS R RTT Actual Max COMM char 50000 MSS 2 1250000 1 1 4096 450 0.001 64.30 0.13 64.17 char 50000 MSS 50 1250000 1 25 4096 450 0.001 74.97 0.14 74.83 char 50000 MSS 200 1250000 1 100 4096 450 0.001...

Hi All, I have a very (very) large tab-delimited text file without headers. There are only 8 columns and millions of rows. I want to make numerous pieces of this file by sub-setting it for individual stations. Station is given as in the first column. I am trying to learn and use sqldf package for this but am stuck in a couple of places. To simulate my requirement, I have taken iris dataset as an

...ed xppref32 > PE 11d0000- 11ea000 Deferred universalchardet > PE 11f0000- 1229000 Deferred strgcmps > PE 1230000- 123c000 Deferred typeaheadfind > PE 1240000- 1247000 Deferred xpcom_compat_c > PE 1250000- 1275000 Deferred gkwidget > PE 1280000- 12a4000 Deferred gkplugin > PE 12b0000- 12b8000 Deferred autoconfig > PE 12c0000- 12c6000 Deferred mozfind > PE 12d0000- 12df000 Deferred profile > PE...

I want to take the first row of each unique ID value from a data frame. For instance > ddTable <- data.frame(Id=c(1,1,2,2),name=c("Paul","Joe","Bob","Larry")) I want a dataset that is Id Name 1 Paul 2 Bob > unique(ddTable) Will give me all 4 rows, and > unique(ddTable$Id) Will give me c(1,2), but not accompanied by the name column.