From e83202746dc877276563ba972423451fadde1eb2 Mon Sep 17 00:00:00 2001
From: Anthony Li <38049831+doccstat@users.noreply.github.com>
Date: Wed, 6 Sep 2023 17:48:26 +0000
Subject: [PATCH] Update installation methods in readme.

---
 README.Rmd | 26 +++++++++++++++++---------
 README.md  | 40 ++++++++++++++++++++++++++++++----------
 2 files changed, 47 insertions(+), 19 deletions(-)

diff --git a/README.Rmd b/README.Rmd
index ed85510a..41660b1a 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -33,6 +33,8 @@ If you'd like to learn how to use the fastcpd effectively, please refer to:
 
 * [Sequential Gradient Descent and Quasi-Newton's Method for Change-Point Analysis](https://proceedings.mlr.press/v206/zhang23b.html)
 
+[documentation & examples](https://fastcpd.xingchi.li/reference/fastcpd.html#ref-examples)
+
 ## Installation
 
 ```{r eval = FALSE}
@@ -41,20 +43,19 @@ install.packages("fastcpd")
 ```
 
 ```{r eval = FALSE}
-# Install the development version from GitHub
-# install.packages("pak")
-pak::pak("doccstat/fastcpd")
-```
+# Install the development version from GitHub using either of the following
+# commands:
 
-If you're compiling from source, you can run
-`pak::pkg_system_requirements("fastcpd")`, to see the complete set of system
-packages needed on your machine.
+## install.packages("pak")
+pak::pak("doccstat/fastcpd")
 
-[documentation & examples](https://fastcpd.xingchi.li/reference/fastcpd.html#ref-examples)
+## install.packages("devtools")
+devtools::install_github("doccstat/fastcpd")
+```
 
 ## Dependency
 
-`library(fastcpd)` will load the following packages:
+`library(fastcpd)` depends on the following packages:
 
 * [Rcpp](https://github.com/RcppCore/Rcpp), for C++ source code compilation.
 * [RcppArmadillo](https://github.com/RcppCore/RcppArmadillo), for fast linear algebra.
@@ -63,6 +64,13 @@ packages needed on your machine.
 * [glmnet](https://glmnet.stanford.edu/), for penalized regression.
 * [ggplot2](https://github.com/tidyverse/ggplot2), for data visualization.
 
+If you're compiling from source, you can run the following command to see the
+complete set of system packages needed on your machine.
+
+```{r eval = TRUE}
+pak::pkg_sysreqs("doccstat/fastcpd")
+```
+
 ## Contact us
 
 Encountered a bug or unintended behavior?
diff --git a/README.md b/README.md
index cbbda2fc..1fefe983 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,9 @@ to:
   Change-Point
   Analysis](https://proceedings.mlr.press/v206/zhang23b.html)
 
+[documentation &
+examples](https://fastcpd.xingchi.li/reference/fastcpd.html#ref-examples)
+
 ## Installation
 
 ``` r
@@ -36,21 +39,19 @@ install.packages("fastcpd")
 ```
 
 ``` r
-# Install the development version from GitHub
-# install.packages("pak")
-pak::pak("doccstat/fastcpd")
-```
+# Install the development version from GitHub using either of the following
+# commands:
 
-If you’re compiling from source, you can run
-`pak::pkg_system_requirements("fastcpd")`, to see the complete set of
-system packages needed on your machine.
+## install.packages("pak")
+pak::pak("doccstat/fastcpd")
 
-[documentation &
-examples](https://fastcpd.xingchi.li/reference/fastcpd.html#ref-examples)
+## install.packages("devtools")
+devtools::install_github("doccstat/fastcpd")
+```
 
 ## Dependency
 
-`library(fastcpd)` will load the following packages:
+`library(fastcpd)` depends on the following packages:
 
 - [Rcpp](https://github.com/RcppCore/Rcpp), for C++ source code
   compilation.
@@ -64,6 +65,25 @@ examples](https://fastcpd.xingchi.li/reference/fastcpd.html#ref-examples)
 - [ggplot2](https://github.com/tidyverse/ggplot2), for data
   visualization.
 
+If you’re compiling from source, you can run the following command to
+see the complete set of system packages needed on your machine.
+
+``` r
+pak::pkg_sysreqs("doccstat/fastcpd")
+#> ℹ Loading metadata database
+#> ✔ Loading metadata database ... done
+#> 
+#> ── Install scripts ───────────────────────────────────────────── Ubuntu 20.04 ──
+#> apt-get -y update
+#> apt-get -y install libcurl4-openssl-dev libssl-dev zlib1g-dev make
+#> 
+#> ── Packages and their system dependencies ──────────────────────────────────────
+#> curl       – libcurl4-openssl-dev, libssl-dev
+#> data.table – zlib1g-dev
+#> fs         – make
+#> openssl    – libssl-dev
+```
+
 ## Contact us
 
 Encountered a bug or unintended behavior?