[R] unz()

[Marsland, John]

I've solve my own problem! apologies.

For the record:

the "filename" argument should include the full path of the file within the
directory structure of the zip file.

but there seeks to be an issue with readLines:

> readLines(z,2)
Error in readLines(z, 2) : seek not enabled for this connection

readLines(z) works fine for the whole file, but unfortunately you cannot use
things like read.table etc.


> -----Original Message-----
> From: Marsland, John [mailto:John.Marsland at commerzbankib.com]
> Sent: 11 July 2003 11:44
> To: 
> Subject: [R] unz()
> 
> 
> 
> I am having problems getting the unz() function to work as a 
> connection to
> start reading a file...
> 
> z <- unz("c:/temp/stoxx.zip", "close_tmi_components.txt", "r")
> readLines(z,2)
> 
> yields the following problems:
> 
> > z <- unz("c:/temp/stoxx.zip", "close_tmi_components.txt", "r")
> Error in unz("c:/temp/stoxx.zip", "close_tmi_components.txt", "r") : 
>         unable to open connection
> In addition: Warning message: 
> cannot locate file `close_tmi_components.txt' in zip file
> `c:/temp/stoxx.zip' 
> > readLines(z,2)
> Error in readLines(z, 2) : cannot open the connection
> In addition: Warning message: 
> cannot locate file `close_tmi_components.txt' in zip file
> `c:/temp/stoxx.zip' 
> 
> can anybody offer any advice?
> 
> Regards,
> 
> John Marsland
> 
> 
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