rterminalimagemagickrstudiodyld

Cannot call dynamic library (DYLD_LIBRARY_PATH) in R on Mac

I cannot load my dyld libraries in R while it works in command line.

I ran system('echo DYLM_LIBRARY_PATH') in R and it returns nothing. This happens to both RStudio and R.

But when I ran echo DYLM_LIBRARY_PATH on terminal, it returns /Users/arthur/ImageMagick-7.0.7/lib/.

Any ideas?

Solution

  • I'm not on a Mac at the moment, but it doesn't appear that you've told R you'd want that to capture any of the output anyway.

    Let's fix that:

    system('echo DYLM_LIBRARY_PATH', intern = T)

    Proof using something I can run on my side:

    head(system('ls')              # returns nothing
head(system('ls', intern = T)) # works

    [1] "01_02_rawAndProcessedData.pdf" "01_06_readingExcelFiles.pdf"   "01_07_readingXML.pdf"          "02_02_readingHDF5.pdf"        
"02_03_readingFromTheWeb.pdf"  
[6] "02_04_readingFromAPIs.pdf"