Взломайте, чтобы включить специальные символы в путь к файлу в haven :: read_sav()

Кажется, что проблема связана с пакетом haven (1.1.1) при включении любого типа специального символа в путь к файлу, включая только имя файла.

Предполагая, что это настоящая проблема, я ищу какой-то аккуратный хак/решение, чтобы обойти это.

Примером (не идеальным) было бы то, что R возьмет копию файла в более удобный путь и даст ему "лучшее" имя файла, а затем загрузится с гаваней. Такие как:

setwd("c:/temp")
fn <- "randóóm.sav"
file.copy(paste0("./äglæpath/", fn), fn)
file.rename(fn, gsub("[^-\\./a-zA-Z0-9[:space:]]", "", fn))
# now apply read_sav() to the copy

Я использую:

R version 3.5.0 (2018-04-23)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

ОТВЕТЫ

Ответ 1

К сожалению, я был в состоянии воспроизвести проблему на Windows 10 и с стандартной версией haven и devtools версией haven. Кажется, это известная ошибка с гаваней. # 371

Рекомендовать Обходное решение:

Переместите файл в каталог без немецких Umlauts в пути к файлу или имени файла. Таким образом, ваше обходное решение работает, как указано.

> file.path(dataFilepath, dtaFilename)
[1] "äglæpath/randóóm.dta"

> dtaFilename <- gsub("[^-\\./a-zA-Z0-9[:space:]]", "", dtaFilename)
> bdatFilename <- gsub("[^-\\./a-zA-Z0-9[:space:]]", "", bdatFilename)
> savFilename <- gsub("[^-\\./a-zA-Z0-9[:space:]]", "", savFilename)
> dataFilepath <- gsub("[^-\\./a-zA-Z0-9[:space:]]", "", dataFilepath)

> file.path(dataFilepath, dtaFilename)
[1] "glpath/randm.dta"

> # Stata
> read_dta(dtaDest)
# A tibble: 150 x 5
   sepallength sepalwidth petallength petalwidth species
         <dbl>      <dbl>       <dbl>      <dbl> <chr>  
 1        5.10       3.5         1.40      0.200 setosa 
 2        4.90       3           1.40      0.200 setosa 
 3        4.70       3.20        1.30      0.200 setosa 
 4        4.60       3.10        1.5       0.200 setosa 
 5        5          3.60        1.40      0.200 setosa 
 6        5.40       3.90        1.70      0.400 setosa 
 7        4.60       3.40        1.40      0.300 setosa 
 8        5          3.40        1.5       0.200 setosa 
 9        4.40       2.90        1.40      0.200 setosa 
10        4.90       3.10        1.5       0.100 setosa 
# ... with 140 more rows
>

Ошибка Github # 371

Чтение _ *() не работает для специальных символов в пути к файлу # 371 https://github.com/tidyverse/haven/issues/371

код проблемы находится в DfReader.cpp df.parse_dta() 594-612 в haven/src/DFReader.cpp.

Код для воспроизведения

require(haven)
require(stringi)

dtaURL  <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.dta?raw=true"
bdatURL <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sas7bdat?raw=true"
savURL  <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sav?raw=true"

dtaFilename   <- "randóóm.dta"
bdatFilename <- "randóóm.bdata"
savFilename   <- "randóóm.sav"

dataFilepath      <- "äglæpath"

if (!dir.exists(dataFilepath)) {
  dir.create(file.path(dataFilepath), showWarnings = TRUE)
}

dtaDest = file.path(dataFilepath, dtaFilename)
bdatDest = file.path(dataFilepath, bdatFilename )
savDest = file.path(dataFilepath, savFilename )

download.file(dtaURL, destfile = dtaDest, method = "wget", mode = "wb")
download.file(bdatURL, destfile = bdatDest, method = "wget", mode = "wb")
download.file(savURL, destfile = savDest, method = "wget", mode = "wb")


# Stata
read_dta(dtaDest)

# SAS
read_sas(bdatDest)

# SPSS
read_sav(savDest)

Консольный выход

> require(haven)
> require(stringi)
> dtaURL  <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.dta?raw=true"
> bdatURL <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sas7bdat?raw=true"
> savURL  <- "https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sav?raw=true"
> dtaFilename   <- "randóóm.dta"
> bdatFilename <- "randóóm.bdata"
> savFilename   <- "randóóm.sav"
> dataFilepath      <- "äglæpath"
> if (!dir.exists(dataFilepath)) {
+   dir.create(file.path(dataFilepath), showWarnings = TRUE)
+ }
> dtaDest = file.path(dataFilepath, dtaFilename)
> bdatDest = file.path(dataFilepath, bdatFilename )
> savDest = file.path(dataFilepath, savFilename )
> download.file(dtaURL, destfile = dtaDest, method = "wget", mode = "wb")
--2018-05-29 15:56:59--  https://github.com/tidyverse/haven/blob/master/inst/examples/iris.dta?raw=true
Resolving github.com (github.com)... 192.30.255.113, 192.30.255.112
Connecting to github.com (github.com)|192.30.255.113|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://github.com/tidyverse/haven/raw/master/inst/examples/iris.dta [following]
--2018-05-29 15:56:59--  https://github.com/tidyverse/haven/raw/master/inst/examples/iris.dta
Reusing existing connection to github.com:443.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.dta [following]
--2018-05-29 15:56:59--  https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.dta
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.52.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.52.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 8213 (8.0K) [application/octet-stream]
Saving to: '\344gl\346path/rand\363\363m.dta'

     0K ........                                              100% 1.56M=0.005s

2018-05-29 15:56:59 (1.56 MB/s) - '\344gl\346path/rand\363\363m.dta' saved [8213/8213]

> download.file(bdatURL, destfile = bdatDest, method = "wget", mode = "wb")
--2018-05-29 15:56:59--  https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sas7bdat?raw=true
Resolving github.com (github.com)... 192.30.255.113, 192.30.255.112
Connecting to github.com (github.com)|192.30.255.113|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://github.com/tidyverse/haven/raw/master/inst/examples/iris.sas7bdat [following]
--2018-05-29 15:56:59--  https://github.com/tidyverse/haven/raw/master/inst/examples/iris.sas7bdat
Reusing existing connection to github.com:443.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.sas7bdat [following]
--2018-05-29 15:56:59--  https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.sas7bdat
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.52.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.52.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 131072 (128K) [application/octet-stream]
Saving to: '\344gl\346path/rand\363\363m.bdata'

     0K .......... .......... .......... .......... .......... 39% 4.05M 0s
    50K .......... .......... .......... .......... .......... 78% 19.7M 0s
   100K .......... .......... ........                        100% 19.3M=0.02s

2018-05-29 15:57:00 (7.83 MB/s) - '\344gl\346path/rand\363\363m.bdata' saved [131072/131072]

> download.file(savURL, destfile = savDest, method = "wget", mode = "wb")
--2018-05-29 15:57:01--  https://github.com/tidyverse/haven/blob/master/inst/examples/iris.sav?raw=true
Resolving github.com (github.com)... 192.30.255.113, 192.30.255.112
Connecting to github.com (github.com)|192.30.255.113|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://github.com/tidyverse/haven/raw/master/inst/examples/iris.sav [following]
--2018-05-29 15:57:01--  https://github.com/tidyverse/haven/raw/master/inst/examples/iris.sav
Reusing existing connection to github.com:443.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.sav [following]
--2018-05-29 15:57:01--  https://raw.githubusercontent.com/tidyverse/haven/master/inst/examples/iris.sav
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.52.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.52.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 6690 (6.5K) [application/octet-stream]
Saving to: '\344gl\346path/rand\363\363m.sav'

     0K ......                                                100% 3.09M=0.002s

2018-05-29 15:57:01 (3.09 MB/s) - '\344gl\346path/rand\363\363m.sav' saved [6690/6690]

> # Stata
> read_dta(dtaDest)
Error in df_parse_dta_file(spec, encoding) : 
  Failed to parse <...>/äglæpath/randóóm.dta: Unable to open file.