How to generate a frequency table in R with with cumulative frequency and relative frequency

Question

I\'m new with R. I need to generate a simple Frequency Table (as in books) with cumulative frequency and relative frequency.

So I want to generate from some simple d

Answer 1

The base functions table, cumsum and prop.table should get you there:

 cbind( Freq=table(x), Cumul=cumsum(table(x)), relative=prop.table(table(x)))
   Freq Cumul   relative
10    2     2 0.04545455
12    2     4 0.04545455
15    1     5 0.02272727
16   10    15 0.22727273
17   16    31 0.36363636
18    6    37 0.13636364
19    4    41 0.09090909
20    2    43 0.04545455
22    1    44 0.02272727

With cbind and naming of the columns to your liking this should be pretty easy for you in the future. The output from the table function is a matrix, so this result is also a matrix. If this were being done on something big it would be more efficient todo this:

tbl <- table(x)
cbind( Freq=tbl, Cumul=cumsum(tbl), relative=prop.table(tbl))