Double quotes are very important for R, and the marks are used to present characters but not numbers.
For calling package names the mark are usually needed because package names are characters.
I had to use a library, kernlab, in R but the library was unable to be accessed because it was not installed.
To install the package, I called install.packages(kernlab).
It did not work.
Though I called to command installing function, error happened and its message appeared "Error in install.packages : object 'kernlab' not found".
Double quotes are very important.
No comments:
Post a Comment