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Installation

You can install the development version of unigd from GitHub with:

# install.packages("remotes")
remotes::install_github("nx10/unigd")

See system requirements for troubleshooting.

System requirements

libpng and X11 are required on unix like systems (e.g. Linux, macOS). Cairo is optional on unix like systems to enable PNG, PDF, EPS and PS renderers. libtiff is required on unix like systems to enable TIFF renderers.

macOS

If libpng is missing install it via:

brew install libpng

If Cairo is missing install it via:

brew install cairo

If libtiff is missing install it via:

brew install libtiff

If X11 is missing the error message will include the text:

unable to load shared object [...] systemfonts/libs/systemfonts.so [...]

Install XQuartz. (see: https://github.com/r-lib/systemfonts/issues/17)

Linux

For source installation on Linux, the fontconfig freetype2 library is required to install the {systemfonts} package, which is a dependency of unigd.

Debian, Ubuntu, etc.

apt install libfontconfig1-dev

Fedora, CentOS, RHEL, etc.

dnf install fontconfig-devel

To support additional plot file formats (PDF, EPS, PS) optionally, the Cairo library is required.

Debian, Ubuntu, etc.

apt install libcairo2-dev

Fedora, CentOS, RHEL, etc.

dnf install cairo-devel

To support additional TIFF formats optionally, the libtiff library is required.

Debian, Ubuntu, etc.

apt install libtiff-dev

Fedora, EPEL, etc.

dnf install libtiff-devel

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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