Grouping data into ranges in R

Posted by Maddy on Stack Overflow See other posts from Stack Overflow or by Maddy
Published on 2012-09-07T09:28:49Z Indexed on 2012/09/07 9:38 UTC
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supposing i have a data frame in R that has names of students in one column and their marks in another column. these marks range from 20 to 100.

> mydata  
id  name   marks gender  
1   a1    56     female  
2   a2    37      male  

i want to divide the student into groups, based on the criteria of obtained marks, so that difference between marks in each group should be more than 10. i tried to use the function table, which gives the number of students in each range from say 20-30, 30-40, but i want it to pick those students that have marks in a given range and put all their information together in a group. any help is appreciated.

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