It looks as though read_fst wants a filename, not a connection.

You should do it in two steps:

 unzip("Dataset.zip", files = "myFile.fst")
 myObject <- read_fst("myFile.fst")

This is obviously untested; you didn't even say what package read_fst() comes from.

Duncan Murdoch

On 09/06/2021 8:18 a.m., Jeff Reichman wrote:
Eric

Typo on my point.

setwd("C:/Users/reichmaj/Documents/My_Reference_Library /Regression")

myObject <- read_fst(unz("Dataset.zip", filename = "myFile.fst")) # read fst 
file

Error in path.expand(path) : invalid 'path' argument

So then I tried

myObject <- read_fst(unz("C:/Users/reichmaj/Documents/My_Reference_Library /Regression 
/Dataset.zip", filename = "myFile.fst"))

Error in path.expand(path) : invalid 'path' argument

Error in the path??

Because this works just fine

myObject <- read.csv(unz("C:/Users/reichmaj/Documents/My_Reference_Library /Regression 
/Dataset.zip", filename = "myFile.csv"))

My only though is I can’t use the two function s together when dealing with fst 
files ??

From: Eric Berger <ericjber...@gmail.com>
Sent: Wednesday, June 9, 2021 3:50 AM
To: reichm...@sbcglobal.net
Cc: R mailing list <r-help@r-project.org>
Subject: Re: [R] Read fst files

You are missing the second closing parenthesis. This is what the error message 
is telling you.

On Wed, Jun 9, 2021 at 2:44 AM Jeff Reichman <reichm...@sbcglobal.net 
<mailto:reichm...@sbcglobal.net> > wrote:

R-Help Forum



Anyone know why the following line of code would error out:  myObject <-
read_fst(unz("Dataset.zip", filename = "filename.fst"))



Error: Incomplete expression: filename <- read_fst(unz("Dataset.zip",
filename = "filename.fst")



I often use similar code with *.csv files in a zipped folder. For example:
myObject <- read.csv(unz("Dataset.zip", filename = "filename.csv")), which
works just fine.



Jeff Reichman




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