error with gather

[alain content]

Hi, 

Am I the only one to see that error with gather ?

I tried different ways, re-installed dplyr and tidyr, but no success :

> library(dplyr)

Attaching package: 'dplyr'

The following object is masked from 'package:stats':

    filter

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

> library(tidyr)

> DFm <- mtcars %>% select(mpg, disp:vs)%>%gather( "var", "val", -vs)

Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) : 

  there is no package called 'plyr'

 

> version

               _                           

platform       x86_64-apple-darwin13.1.0   

arch           x86_64                      

os             darwin13.1.0                

system         x86_64, darwin13.1.0        

status                                     

major          3                           

minor          1.1                         

year           2014                        

month          07                          

day            10                          

svn rev        66115                       

language       R                           

version.string R version 3.1.1 (2014-07-10)

nickname       Sock it to Me  

Any suggestion ?

Thanks in advance

Alain  

[Hadley Wickham]

Maybe you need to reinstall tidyr?

Hadley

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[Alain Content]

Hi Hadley,

Nope, did that — same error message with re-installed tidyr (as well as with dev version from github)

Some hint below :

> library(tidyr)
> DFm <- mtcars %>% select(mpg, disp:vs)%>%gather( "var", "val", -vs)
Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) :

there is no package called ‘plyr’
> install.packages("plyr")
trying URL 'http://cran.rstudio.com/bin/macosx/mavericks/contrib/3.1/plyr_1.8.1.tgz'
Content type 'application/x-gzip' length 863410 bytes (843 Kb)
opened URL
==================================================
downloaded 843 Kb


The downloaded binary packages are in
/var/folders/zq/tk4r4mns51z5bx3q30bg9wbc0000gn/T//RtmpNr1pGU/downloaded_packages

> # plyr is installed but not loaded:
> ddply()
Error: could not find function "ddply"

> DFm <- mtcars %>% select(mpg, disp:vs)%>%gather( "var", "val", -vs)
>

> remove.packages("plyr")
Removing package from ‘/Library/Frameworks/R.framework/Versions/3.1/Resources/library’
(as ‘lib’ is unspecified)

Restarting R session...

> library(tidyr)
> DFm <- mtcars %>% select(mpg, disp:vs)%>%gather( "var", "val", -vs)
Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) :

there is no package called ‘plyr’

[Hadley Wickham]

It's definitely something peculiar to your setup.
Hadley

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