Dear R-Users,

Suppose I have data in the following format:

CODE_NAME     ZIP_CODE
John                   12345
John                   23456
John                   34567
Jane                   13242
Jane                   22123

I want to transpose / convert it into:
CODE_NAME     ZIP_CODE
John                  12345,23456,34567
Jane                  13242,22123

Any idea/pointer is appreciated.

Thanks a bunch,

Ferry

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