[R] transform excel data into graph

cross123 ctsirigos at yahoo.com
Sun Jul 8 23:38:16 CEST 2007

Hello everyone,
I have a set of data in the following form, which are stored in an Excel
                 nick       john       peter                 
lesson1       0.465     0.498     0.473    
lesson2       0.422      0.44      0.134           
lesson3       0.45       0.35       0.543                      
lesson4       0.590      0.64      0.11                      
lesson5       0.543      0.5        0.32                      

What I want to do is a 2d-graph plot where I will have  the name of the
student in the X-axis and the name of the lesson in the Y-axis and the
number from each pair will be used to construct the plot.
I am newbie with R and I don't know which package shall I use nor the
commands with which I will import my data in R so that the plot will be

Any help would be greatly appreciated.

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