[R] Changing a value in a particular row and column within a text file

[Duncan Murdoch]

Mauricio Zambrano wrote:
> Dear list,
> 
> I need to change a value within a particular line of a plain text file
> with characters and numbers, and I haven't found any way of doing this
> by using R.
> 
> What I have a is a file that doesn't have tabular data (so, I think
> that 'read.table' or 'read.delim' are not the right tools for this),
> but some text, and I now exactly the row that has to be modified and
> the columns within that row that have to be changed with a new
> numerical value.
> 
> I don't' know any way of reading a text file line by line in R, and
> this is the only solution in R that I have figured out so far...
> 
> Any idea about how can I do this ?.
> 

Use readLines to read it, modify the line, use writeLines to write it 
out.

Duncan Murdoch

> 
> Thanks in advance for any help,
> 
> Mauricio
>