Hi List,

I want  replace characters within a vector. Outside R I could use sed,
but I'd like to automate it in R. For example

vectorx
xxxyyz
xxxyyza
xxxyyzzb

I want to change to: 

vectorx
aaayyz
aaayyza
aaayyzzb

The obvious replace command only deals with whole data entries?
Any hints would be appreciated.

Thanks
Herry

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