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pbreheny / grpreg

Regularization paths for regression models with grouped covariates
http://pbreheny.github.io/grpreg/
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Error Message - Could not find build tools necessary to build grpreg #8

Closed RBaudier closed 7 years ago

RBaudier commented 7 years ago

When trying to install grpreg after installing devtools like so:

install.packages("devtools") devtools::install_github("pbreheny/grpreg")

I get this error message :

Downloading GitHub repo pbreheny/grpreg@master from URL https://api.github.com/repos/pbreheny/grpreg/zipball/master Error: Could not find build tools necessary to build grpreg

Any ideas on what I'm missing here or what I could try to fix it? Thanks in advance.

pbreheny commented 7 years ago

grpreg contains c code, which needs to be compiled. Linux/Mac systems typically come with C compilers, so I'm guessing you're running Windows? If so, see here:

https://cran.r-project.org/bin/windows/Rtools

You may also wish to read this:

http://robjhyndman.com/hyndsight/building-r-packages-for-windows

This isn't a grpreg-specific issue, though -- lots of packages have C code. You can also just install from CRAN, which builds and compiles the windows binaries for you.

(this also addresses hadley/devtools#1420)

RBaudier commented 7 years ago

Thanks for your help on this issue! I am using a Mac, but this will at least get me looking in the right direction.