Summary: control output format for summary(dataFrame) calls.

Given data frame dataFrame, summary(dataFrame) creates an output which is easy to read only when the number of columns in dataFrame is small.

Question:

How to produce an output that contains 1 fact at a time?

For example:

dataFrame  <- data.frame(x=rnorm(100), y=rnorm(100), z=rnorm(100));
summary(dataFrame);

gives:

       x                  y                  z          
 Min.   :-2.13427   Min.   :-2.12077   Min.   :-2.4453  
 1st Qu.:-0.53324   1st Qu.:-0.78915   1st Qu.:-0.4100  
 Median : 0.05675   Median :-0.22321   Median : 0.1356  
 Mean   : 0.09102   Mean   :-0.04939   Mean   : 0.1306  
 3rd Qu.: 0.69685   3rd Qu.: 0.58358   3rd Qu.: 0.7847  
 Max.   : 2.48204   Max.   : 2.65971   Max.   : 2.0504

and the desired output would be:

      x          
Min.   :-2.13427 
1st Qu.:-0.53324 
Median : 0.05675 
Mean   : 0.09102 
3rd Qu.: 0.69685 
Max.   : 2.48204 

      y
Min.   :-2.13427 
1st Qu.:-0.53324 
Median : 0.05675 
Mean   : 0.09102 
3rd Qu.: 0.69685 
Max.   : 2.48204 

      z
Min.   :-2.13427 
1st Qu.:-0.53324 
Median : 0.05675 
Mean   : 0.09102 
3rd Qu.: 0.69685 
Max.   : 2.48204
r
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