Dear Andrea
Comments in-line
On 09/09/2019 15:47, Andrea Vilar Alvarez wrote:
Hi,
I am writting because I am doing a package in R and I have some problems
installing dependences which appear at DESCRIPTION file.
First of all, I am not sure about the difference between Depends and Imports,
but I only use Depends.
My problem is that my package is going to be used at different computers and
for different persons so I want that when other person use my package, it can
be able to check if the necesary packages are installed and if they are not
installed, the package must be able to install them.
If I understand you correctly that is what install.packages() does for
your users.
I supposed that this problem was solved including the necesary packages and their
versions at �Depends�. And now, I have another problem because the versions are usually
indicated using �>=�, for example: forecast (>=8.7) but I need to use exactly the
versi�n 8.7 because sometimes when packages are updated, they lost some functions. But
if I use <= or == and the package is update to versi�n 8.8, my package installation
fail.
As I read the manual. you can specify both and upper and lower bound. It
is at the bottom of page 9 in the pdf I am reading.
How can I solve this? If I use R normaly (outside my package), I can install older
versions of other packages using devtools::install_version() so why when I
indicate forecast (<=8.7) at Depends on the DESCRIPTION file, R is not able to
install an older version if a new one is avaliable?
Thanks in advance for your attention.
Best regards,
Andrea.
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Michael
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