Issue 159 new evaluation

.github/workflows/docs.yml

@@ -0,0 +1,28 @@
+name: Generate Docs
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+
+  docs:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Python
+      uses: actions/setup-python@v1
+      with:
+        python-version: '3.7'
+
+    - name: Build
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e .[dev]
+        make docs
+    - name: Deploy
+      uses: peaceiris/actions-gh-pages@v3
+      with:
+        github_token: ${{secrets.GITHUB_TOKEN}}
+        publish_dir: docs/_build/html

.github/workflows/tests.yml

@@ -0,0 +1,40 @@
+name: Run Tests
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        python-version: [3.5, 3.6, 3.7]
+        os: [ubuntu-latest, macos-latest]
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - if: matrix.os == 'ubuntu-latest'
+      name: Install graphviz - Ubuntu
+      run: |
+        sudo apt-get install graphviz
+
+    - if: matrix.os == 'macos-latest'
+      name: Install graphviz - MacOS
+      run: |
+        brew install graphviz
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install tox tox-gh-actions
+
+    - name: Test with tox
+      run: tox

.travis.yml

@@ -1,32 +1,18 @@
 # Config file for automatic testing at travis-ci.org
-dist: trusty
+dist: bionic
 language: python
 python:
+  - 3.7
   - 3.6
   - 3.5
 
-matrix:
-  include:
-    - python: 3.7
-      dist: xenial
-      sudo: required
-
 # Command to install dependencies
-install: pip install -U tox-travis codecov
+install:
+  - sudo apt-get update
+  - sudo apt-get install graphviz
+  - pip install -U tox-travis codecov
 
 after_success: codecov
 
 # Command to run tests
 script: tox
-
-deploy:
-
-  - provider: pages
-    skip-cleanup: true
-    github-token: "$GITHUB_TOKEN"
-    keep-history: true
-    local-dir: docs/_build/html
-    target-branch: gh-pages
-    on:
-      branch: master
-      python: 3.6

EVALUATION.md

@@ -0,0 +1,46 @@
+# SDV Evaluation
+
+After using SDV to model your database and generate a synthetic version of it you
+might want to evaluate how similar the syntehtic data is to your real data.
+
+SDV has an evaluation module with a simple function that allows you to compare
+the syntehtic data to your real data using [SDMetrics](https://github.com/sdv-dev/SDMetrics) and
+generate a simple standardized score.
+
+## Evaluating your synthetic data
+
+After you have modeled your databased and generated samples out of the SDV models
+you will be left with a dictionary that contains table names and dataframes.
+
+For exmple, if we model and sample the demo dataset:
+
+```python3
+from sdv import SDV
+from sdv.demo import load_demo
+
+metadata, tables = load_demo(metadata=True)
+
+sdv = SDV()
+sdv.fit(metadata, tables)
+
+samples = sdv.sample_all(10)
+```
+
+`samples` will contain a dictionary with three tables, just like the `tables` dict.
+
+
+At this point, you can evaluate how similar the two sets of tables are by using the
+`sdv.evaluation.evaluate` function as follows:
+
+```
+from sdv.evaluation import evaluate
+
+score = evaluate(samples, tables, metadata)
+```
+
+The output will be a maximization score that will indicate how good the modeling was:
+the higher the value, the more similar the sets of table are. Notice that in most cases
+the value will be negative.
+
+For further options, including visualizations and more detailed reports, please refer to
+the [SDMetrics](https://github.com/sdv-dev/SDMetrics) library.