尝试过一切，搜索过一切，从 Github 安装 Quantstrat 包时出现问题

Question

Installing Quantstrat Issues. I am running the latest versions of R, RStudio, and Rtools. I have installed devtools / remotes packages and cannot seem to get quantstrat installed. enter image description here

Answer 1

I had similar problems too. Installing quantstrat via cmd works well for me. Here are the steps:

1. Create a folder for packages ie RPackages\\
2. Download the file from github to that specific folder and extract the files to the library name. ie RPackages\\quantstrat\\
3. go on command line and goto RPackages
4. Type" R CMD build quantstrat
5. If it was successful, you will get a message like "building 'package_name_version_number.tar.gz'"
6. Now type: R CMD INSTALL package_name_version_number.tar.gz

Let me know if you have any other challenges.

Answer 2

I get the following error at step 4: 'R' is not recognized as an internal or external command, operable program or batch file.

what do I need to do to overcome this.

Answer 3

Here is the fix that worked for me:

There could be version issues depending on what version of R that you have especially for Blotter and PerformanceAnalytics. Since PerformanceAnalytics to install blotter, you must ensure that version force compatibility and the easiest way is just to install it fresh. Start by installing PerformanceAnalytics then blotter then quantstrat and you should be in good shape. Use the code below and let me know how your results turn out. Took me a few hours to solve it, but just got it done today (7/27/2020)

install.packages("PerformanceAnalytics")

remotes::install_github("braverock/blotter")

remotes::install_github("braverock/quantstrat", force = TRUE)