Dear R-Helpers, I've looked high and low for a function that provides frequencies, proportions and cumulative proportions side-by-side. Below is the table I need. Is there a function that already does it?
Thanks, Bob > # Generate some test scores > myValues <- c(70:95) > Score <- ( sample( myValues, size=1000, replace=TRUE) ) > head(Score) [1] 77 71 81 88 83 93 > > # Get frequencies & proportions > myTable <- data.frame( table(Score) ) > myTable$Prop <- prop.table( myTable$Freq ) > myTable$CumProp <- cumsum( myTable$Prop ) > > # Print result > myTable Score Freq Prop CumProp 1 70 44 0.044 0.044 2 71 42 0.042 0.086 3 72 40 0.040 0.126 4 73 40 0.040 0.166 5 74 43 0.043 0.209 6 75 45 0.045 0.254 7 76 46 0.046 0.300 8 77 40 0.040 0.340 9 78 46 0.046 0.386 10 79 43 0.043 0.429 11 80 37 0.037 0.466 12 81 29 0.029 0.495 13 82 33 0.033 0.528 14 83 39 0.039 0.567 15 84 31 0.031 0.598 16 85 32 0.032 0.630 17 86 31 0.031 0.661 18 87 37 0.037 0.698 19 88 30 0.030 0.728 20 89 33 0.033 0.761 21 90 43 0.043 0.804 22 91 41 0.041 0.845 23 92 37 0.037 0.882 24 93 39 0.039 0.921 25 94 42 0.042 0.963 26 95 37 0.037 1.000 > ========================================================= Bob Muenchen (pronounced Min'-chen), Manager, Research Computing Support U of TN Office of Information Technology Stokely Management Center, Suite 200 916 Volunteer Blvd., Knoxville, TN 37996-0520 Voice: (865) 974-5230 FAX: (865) 974-8655 Please help us improve: http://oit.utk.edu/feedback Web: http://oit.utk.edu/research Map to Office: http://www.utk.edu/maps Newsletter: http://oit.utk.edu/research/news.php ========================================================= ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
