Library: | stats |
See also: | descriptive frequency mean var min max quantile |
Quantlet: | summarize | |
Description: | provides a short summary table (min, max, mean, median standard error) for all columns of a data matrix. An additional vector of name strings can be given to identify columns by names. |
Usage: | summ=summarize(x{,xvars}) | |
Input: | ||
x | n x p matrix, the columns correspond to the variables. | |
xvars | optional, p x 1 string vector, variable names. Note, that only up to 15 characters are used. | |
Output: | ||
summ | string output, containing summary table. |
library("stats") x=read("bank2") xvars="length"|"l_height"|"r_height"|"u_frame"|"l_frame"|"diagonal" summarize(x,xvars)
Contents of summ [ 1,] " " [ 2,] " Minimum Maximum Mean Median Std.Error" [ 3,] " -------------------------------------------------------------" [ 4,] "length 213.8 216.3 214.9 214.9 0.37655" [ 5,] "l_height 129 131 130.12 130.2 0.36103" [ 6,] "r_height 129 131.1 129.96 130 0.40407" [ 7,] "u_frame 7.2 12.7 9.4175 9.1 1.4446" [ 8,] "l_frame 7.7 12.3 10.65 10.6 0.80295" [ 9,] "diagonal 137.8 142.4 140.48 140.3 1.1523" [10,] " "