在 MAC 上安装 quantstrat 包时遇到问题

Question

I'm sure it's a dumb question but I am currently doing the quantitative analyst course in R on datacamp and I cannot install and require the quantstrat package: please view the code and error I get below:

remotes::install_github("braverock/quantstrat")

Downloading GitHub repo braverock/quantstrat@master Skipping 1 packages not available: blotter ✓ checking for file '/private/var/folders/vj/hns236zs3td7hn6xlrq60g840000gn/T/Rtmprb7rht/remotes13e7359179ac/braverock-quantstrat-9960e3e/DESCRIPTION' ... ─ preparing 'quantstrat': ✓ checking DESCRIPTION meta-information ... ─ cleaning src ─ checking for LF line-endings in source and make files and shell scripts ─ checking for empty or unneeded directories ─ looking to see if a 'data/datalist' file should be added NB: this package now depends on R (>= 3.5.0) WARNING: Added dependency on R >= 3.5.0 because serialized objects in serialize/load version 3 cannot be read in older versions of R. File(s) containing such objects: 'quantstrat/data/luxor.wfa.ples.RData' WARNING: Added dependency on R >= 3.5.0 because serialized objects in serialize/load version 3 cannot be read in older versions of R. File(s) containing such objects: 'quantstrat/luxor.wfa.ples.RData' ─ building 'quantstrat_0.16.6.tar.g z'

Then I get this message below after it attempts to download it:

ERROR: dependency 'blotter' is not available for package 'quantstrat' * removing '/Library/Frameworks/R.framework/Versions/3.6/Resources/library/quantstrat' Error: Failed to install 'quantstrat' from GitHub: (converted from warning) installation of package '/var/folders/vj/hns236zs3td7hn6xlrq60g840000gn/T//Rtmprb7rht/file13e7487dac5f/quantstrat_0.16.6.tar.gz' had non-zero exit status

Answer 1

Seemed blotter wasn't installed. If someone is experiencing the same issue:

remotes::install_github("braverock/blotter")
remotes::install_github("braverock/quantstrat")

This should work :)