Add an article with minimal examples (#527)

* add article with minimal examples for fitting and predicting

* fix indentation

* all examples indented to get collapsing right

* make headers work within the collapsable section

* add id tags so that we can link to specific sections

* (failed) attempt to use the tag to link from help page to the article

* change order

* added links to pkgdown site in the help pages

* let GA build the site and deploy

* don't call it minimal because it's still quite a bit to take in

* add intro sentence

* add tensorflow for future examples

* more examples

`multinom_reg()`: nnet, keras
`mlp()`: nnet, keras
`mars()`: earth

* suppress auto-linking in section headings

* more examples

`logistic_reg()`: glm, glmnet, keras, LiblineaR, stan
`linear_reg()`: lm, glmnet, keras, stan
`decision_tree()`: rpart, C5.0
`boost_tree()`: xgboost, C5.0

* remove `set_mode()` when the model only has one mode

* added headings

* include info on model/mode/engine

Co-authored-by: Julia Silge <julia.silge@gmail.com>

* Update vignettes/articles/template-cls-multi-class.R

Co-authored-by: Julia Silge <julia.silge@gmail.com>

Co-authored-by: Julia Silge <julia.silge@gmail.com>

Author: hfrick

.github/workflows/pkgdown.yaml

@@ -53,6 +53,21 @@ jobs:
           pak::pkg_install("C50")
         shell: Rscript {0}
 
+      - name: Install Miniconda
+        run: |
+          Rscript -e "pak::pkg_install('rstudio/reticulate')"
+          Rscript -e "reticulate::install_miniconda()"
+
+      - name: Find Miniconda on macOS
+        if: runner.os == 'macOS'
+        run: echo "options(reticulate.conda_binary = reticulate:::miniconda_conda())" >> .Rprofile
+
+      - name: Install TensorFlow
+        run: |
+          reticulate::conda_create('r-reticulate', packages = c('python==3.6.9'))
+          tensorflow::install_tensorflow(version='1.14.0')
+        shell: Rscript {0}
+
       - name: Install package
         run: R CMD INSTALL .
 

_pkgdown.yml

@@ -10,7 +10,7 @@ template:
 # https://github.com/tidyverse/tidytemplate for css
 
 development:
-  mode: auto
+  mode: release
 
 
 figures:
@@ -90,6 +90,8 @@ navbar:
        href: https://www.tidymodels.org/learn/develop/models/
      - text: Evaluating submodels with the same model object
        href: articles/articles/Submodels.html
+     - text: Fitting and Predicting with parsnip
+       href: articles/articles/Examples.html
   - text: News
     href: news/index.html
   - text: Reference