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
Read fst files
13 messages · Eric Berger, Duncan Murdoch, Jan van der Laan +3 more
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 <reichmanj at 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
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
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 <ericjberger at gmail.com>
Sent: Wednesday, June 9, 2021 3:50 AM
To: reichmanj at sbcglobal.net
Cc: R mailing list <r-help at 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 <reichmanj at sbcglobal.net <mailto:reichmanj at 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
______________________________________________
R-help at r-project.org <mailto:R-help at r-project.org> mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Even if ultimately you want to use the functions together, for debugging
the problem you should split them into two, as in
a <- unz("C:/Users/reichmaj/Documents/My_Reference_Library /Regression
/Dataset.zip", filename = "myFile.fst")
See if that works, and examine 'a'.
And once that is working
read_fst(a)
to see what that does.
Let us know.
On Wed, Jun 9, 2021 at 3:18 PM Jeff Reichman <reichmanj at sbcglobal.net>
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 <ericjberger at gmail.com>
*Sent:* Wednesday, June 9, 2021 3:50 AM
*To:* reichmanj at sbcglobal.net
*Cc:* R mailing list <r-help at 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 <reichmanj at 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
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
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 <ericjberger at gmail.com>
Sent: Wednesday, June 9, 2021 3:50 AM
To: reichmanj at sbcglobal.net
Cc: R mailing list <r-help at 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 <reichmanj at sbcglobal.net <mailto:reichmanj at 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
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org <mailto:R-help at r-project.org> mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Duncan
Yea that will work. It appears to be related to setting my working dir, for what ever reason neither seem to work
(1) knitr::opts_knit$set(root.dir ="~/My_Reference_Library/Regression") # from R Notebook or
(2) setwd("C:/Users/reichmaj/Documents/My_Reference_Library/Regression") # from R chunk
So it appears I can either (as you suggested) use two steps or combine but I need to enter the full path. Why other file types don't seem to need the full path ....?????
myObject <- read_fst(unz("C:/Users/reichmaj/Documents/My_Reference_Library/Regression/Datasest.zip", filename = "myFile.fst"))
Thank you. I guess just one of those R things
Jeff
-----Original Message-----
From: Duncan Murdoch <murdoch.duncan at gmail.com>
Sent: Wednesday, June 9, 2021 7:27 AM
To: reichmanj at sbcglobal.net; 'Eric Berger' <ericjberger at gmail.com>
Cc: 'R mailing list' <r-help at r-project.org>
Subject: Re: [R] Read fst files
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 <ericjberger at gmail.com>
Sent: Wednesday, June 9, 2021 3:50 AM
To: reichmanj at sbcglobal.net
Cc: R mailing list <r-help at 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 <reichmanj at sbcglobal.net <mailto:reichmanj at 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
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org <mailto:R-help at r-project.org> mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
On 09/06/2021 9:12 a.m., Jeff Reichman wrote:
Duncan
Yea that will work. It appears to be related to setting my working dir, for what ever reason neither seem to work
(1) knitr::opts_knit$set(root.dir ="~/My_Reference_Library/Regression") # from R Notebook or
(2) setwd("C:/Users/reichmaj/Documents/My_Reference_Library/Regression") # from R chunk
So it appears I can either (as you suggested) use two steps or combine but I need to enter the full path. Why other file types don't seem to need the full path ....?????
You need to read the documentation for read_fst() to find what it needs. If it doesn't explain this, then you should report the issue to its author.
myObject <- read_fst(unz("C:/Users/reichmaj/Documents/My_Reference_Library/Regression/Datasest.zip", filename = "myFile.fst"))
Thank you. I guess just one of those R things
No, it's a read_fst() thing. Duncan Murdoch
read_fst is from the package fst. The fileformat fst uses is a binary format designed to be fast readable. It is a column oriented format and compressed. So, to be able to work fst needs access to the file itself and wont accept a file connection as functions like read.table an variants accept. Also, because it is a binary compressed format using a compression method that is fast to read, compressing also to zip seems to defeat the purpose of fst. HTH, Jan
On 09-06-2021 15:28, Duncan Murdoch wrote:
On 09/06/2021 9:12 a.m., Jeff Reichman wrote:
Duncan
Yea that will work. It appears to be related to setting my working
dir, for what ever reason neither seem to work
(1) knitr::opts_knit$set(root.dir
="~/My_Reference_Library/Regression") # from R Notebook or
(2)
setwd("C:/Users/reichmaj/Documents/My_Reference_Library/Regression") #
from R chunk
So it appears I can either (as you suggested) use two steps or combine
but I need to enter the full path. Why other file types don't seem to
need the full path ....?????
You need to read the documentation for read_fst() to find what it needs. ?If it doesn't explain this, then you should report the issue to its author.
myObject <-
read_fst(unz("C:/Users/reichmaj/Documents/My_Reference_Library/Regression/Datasest.zip",
filename = "myFile.fst"))
Thank you. I guess just one of those R things
No, it's a read_fst() thing. Duncan Murdoch
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Jan Makes sense. Its just that I often receive large zip files that contain a variety of file types. Jef -----Original Message----- From: R-help <r-help-bounces at r-project.org> On Behalf Of Jan van der Laan Sent: Wednesday, June 9, 2021 12:56 PM To: r-help at r-project.org Subject: Re: [R] Read fst files read_fst is from the package fst. The fileformat fst uses is a binary format designed to be fast readable. It is a column oriented format and compressed. So, to be able to work fst needs access to the file itself and wont accept a file connection as functions like read.table an variants accept. Also, because it is a binary compressed format using a compression method that is fast to read, compressing also to zip seems to defeat the purpose of fst. HTH, Jan
On 09-06-2021 15:28, Duncan Murdoch wrote:
On 09/06/2021 9:12 a.m., Jeff Reichman wrote:
Duncan
Yea that will work. It appears to be related to setting my working
dir, for what ever reason neither seem to work
(1) knitr::opts_knit$set(root.dir
="~/My_Reference_Library/Regression") # from R Notebook or
(2)
setwd("C:/Users/reichmaj/Documents/My_Reference_Library/Regression") #
from R chunk
So it appears I can either (as you suggested) use two steps or combine
but I need to enter the full path. Why other file types don't seem to
need the full path ....?????
You need to read the documentation for read_fst() to find what it needs. If it doesn't explain this, then you should report the issue to its author.
myObject <-
read_fst(unz("C:/Users/reichmaj/Documents/My_Reference_Library/Regression/Datasest.zip",
filename = "myFile.fst"))
Thank you. I guess just one of those R things
No, it's a read_fst() thing. Duncan Murdoch
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
... but if you are receiving multiple-file zips then you should not be using unz() the way you are in your original post. I have to agree with other responders suggesting that you handle unzipping fst zips manually rather than as part of an R one-liner.
On June 9, 2021 11:26:34 AM PDT, Jeff Reichman <reichmanj at sbcglobal.net> wrote:
Jan Makes sense. Its just that I often receive large zip files that contain a variety of file types. Jef -----Original Message----- From: R-help <r-help-bounces at r-project.org> On Behalf Of Jan van der Laan Sent: Wednesday, June 9, 2021 12:56 PM To: r-help at r-project.org Subject: Re: [R] Read fst files read_fst is from the package fst. The fileformat fst uses is a binary format designed to be fast readable. It is a column oriented format and compressed. So, to be able to work fst needs access to the file itself and wont accept a file connection as functions like read.table an variants accept. Also, because it is a binary compressed format using a compression method that is fast to read, compressing also to zip seems to defeat the purpose of fst. HTH, Jan On 09-06-2021 15:28, Duncan Murdoch wrote:
On 09/06/2021 9:12 a.m., Jeff Reichman wrote:
Duncan
Yea that will work. It appears to be related to setting my working
dir, for what ever reason neither seem to work
(1) knitr::opts_knit$set(root.dir
="~/My_Reference_Library/Regression") # from R Notebook or
(2)
setwd("C:/Users/reichmaj/Documents/My_Reference_Library/Regression")
#
from R chunk So it appears I can either (as you suggested) use two steps or
combine
but I need to enter the full path. Why other file types don't seem
to
need the full path ....?????
You need to read the documentation for read_fst() to find what it
needs.
If it doesn't explain this, then you should report the issue to its
author.
myObject <-
read_fst(unz("C:/Users/reichmaj/Documents/My_Reference_Library/Regression/Datasest.zip",
filename = "myFile.fst")) Thank you. I guess just one of those R things
No, it's a read_fst() thing. Duncan Murdoch
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Sent from my phone. Please excuse my brevity.
Try using unzip(zipfile, files="desiredFile", exdir=tf<-tempfile()), not unz(zipfile, "desiredFile"), to copy the desired file from the zip file to a temporary location and use read_fst(tf) to read the desired file. -Bill On Wed, Jun 9, 2021 at 11:27 AM Jeff Reichman <reichmanj at sbcglobal.net> wrote:
Jan Makes sense. Its just that I often receive large zip files that contain a variety of file types. Jef -----Original Message----- From: R-help <r-help-bounces at r-project.org> On Behalf Of Jan van der Laan Sent: Wednesday, June 9, 2021 12:56 PM To: r-help at r-project.org Subject: Re: [R] Read fst files read_fst is from the package fst. The fileformat fst uses is a binary format designed to be fast readable. It is a column oriented format and compressed. So, to be able to work fst needs access to the file itself and wont accept a file connection as functions like read.table an variants accept. Also, because it is a binary compressed format using a compression method that is fast to read, compressing also to zip seems to defeat the purpose of fst. HTH, Jan On 09-06-2021 15:28, Duncan Murdoch wrote:
On 09/06/2021 9:12 a.m., Jeff Reichman wrote:
Duncan
Yea that will work. It appears to be related to setting my working
dir, for what ever reason neither seem to work
(1) knitr::opts_knit$set(root.dir
="~/My_Reference_Library/Regression") # from R Notebook or
(2)
setwd("C:/Users/reichmaj/Documents/My_Reference_Library/Regression") #
from R chunk
So it appears I can either (as you suggested) use two steps or combine
but I need to enter the full path. Why other file types don't seem to
need the full path ....?????
You need to read the documentation for read_fst() to find what it needs. If it doesn't explain this, then you should report the issue to its author.
myObject <-
read_fst(unz("C:/Users/reichmaj/Documents/My_Reference_Library/Regression/Datasest.zip",
filename = "myFile.fst")) Thank you. I guess just one of those R things
No, it's a read_fst() thing. Duncan Murdoch
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
On 09/06/2021 1:55 p.m., Jan van der Laan wrote:
read_fst is from the package fst. The fileformat fst uses is a binary format designed to be fast readable. It is a column oriented format and compressed. So, to be able to work fst needs access to the file itself and wont accept a file connection as functions like read.table an variants accept.
Thanks for the info. I think it is possible to handle such a file in a binary connection, but doing that in C/C++ would be kind of horrible, so I can understand your choice. Duncan Murdoch
Also, because it is a binary compressed format using a compression method that is fast to read, compressing also to zip seems to defeat the purpose of fst. HTH, Jan On 09-06-2021 15:28, Duncan Murdoch wrote:
On 09/06/2021 9:12 a.m., Jeff Reichman wrote:
Duncan
Yea that will work. It appears to be related to setting my working
dir, for what ever reason neither seem to work
(1) knitr::opts_knit$set(root.dir
="~/My_Reference_Library/Regression") # from R Notebook or
(2)
setwd("C:/Users/reichmaj/Documents/My_Reference_Library/Regression") #
from R chunk
So it appears I can either (as you suggested) use two steps or combine
but I need to enter the full path. Why other file types don't seem to
need the full path ....?????
You need to read the documentation for read_fst() to find what it needs. ?If it doesn't explain this, then you should report the issue to its author.
myObject <-
read_fst(unz("C:/Users/reichmaj/Documents/My_Reference_Library/Regression/Datasest.zip",
filename = "myFile.fst"))
Thank you. I guess just one of those R things
No, it's a read_fst() thing. Duncan Murdoch
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Bill So I understand that?s just unzipping the file to a temporary dir which then would allow read_fst to access the file directly . Jeff From: Bill Dunlap <williamwdunlap at gmail.com> Sent: Wednesday, June 9, 2021 1:43 PM To: reichmanj at sbcglobal.net Cc: Jan van der Laan <rhelp at eoos.dds.nl>; r-help at r-project.org Subject: Re: [R] Read fst files Try using unzip(zipfile, files="desiredFile", exdir=tf<-tempfile()), not unz(zipfile, "desiredFile"), to copy the desired file from the zip file to a temporary location and use read_fst(tf) to read the desired file. -Bill
On Wed, Jun 9, 2021 at 11:27 AM Jeff Reichman <reichmanj at sbcglobal.net <mailto:reichmanj at sbcglobal.net> > wrote:
Jan Makes sense. Its just that I often receive large zip files that contain a variety of file types. Jef -----Original Message----- From: R-help <r-help-bounces at r-project.org <mailto:r-help-bounces at r-project.org> > On Behalf Of Jan van der Laan Sent: Wednesday, June 9, 2021 12:56 PM To: r-help at r-project.org <mailto:r-help at r-project.org> Subject: Re: [R] Read fst files read_fst is from the package fst. The fileformat fst uses is a binary format designed to be fast readable. It is a column oriented format and compressed. So, to be able to work fst needs access to the file itself and wont accept a file connection as functions like read.table an variants accept. Also, because it is a binary compressed format using a compression method that is fast to read, compressing also to zip seems to defeat the purpose of fst. HTH, Jan
On 09-06-2021 15:28, Duncan Murdoch wrote:
On 09/06/2021 9:12 a.m., Jeff Reichman wrote:
Duncan
Yea that will work. It appears to be related to setting my working
dir, for what ever reason neither seem to work
(1) knitr::opts_knit$set(root.dir
="~/My_Reference_Library/Regression") # from R Notebook or
(2)
setwd("C:/Users/reichmaj/Documents/My_Reference_Library/Regression") #
from R chunk
So it appears I can either (as you suggested) use two steps or combine
but I need to enter the full path. Why other file types don't seem to
need the full path ....?????
You need to read the documentation for read_fst() to find what it needs. If it doesn't explain this, then you should report the issue to its author.
myObject <-
read_fst(unz("C:/Users/reichmaj/Documents/My_Reference_Library/Regression/Datasest.zip",
filename = "myFile.fst"))
Thank you. I guess just one of those R things
No, it's a read_fst() thing. Duncan Murdoch
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______________________________________________ R-help at r-project.org <mailto:R-help at r-project.org> mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help at r-project.org <mailto:R-help at r-project.org> mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.