Web app. of PCA by Streamlit

Implementation of PCA for the wine classification dataset on a web app by Streamlit.

About library for deploying a web app

We create a web app by Streamlit, a python library for turning a python script into a web app.

You can easily install and get started in streamlit.

pip install streamlit

You can get started in the web app in this repository by the following procedure. To prepare an environment, we use docker.

Create a docker image from Dockerfile.
```
docker build .
```
Run a docker container created from the docker image.
```
docker run -it -p 8888:8888 -v ~/(local dir)/:/work (IMAGE ID) bash
```
Note that "-p 8888: 8888" is an instruction to connect the host(your local PC) with the docker container. The first and second 8888 indicate the host’s and the container's port numbers, respectively.
Turn a python script into a web app by Streamlit
```
streamlit run pca_on_streamlit.py --server.port 8888
```
Note that, by "--server.port 8888", we can access a web app from a web browser with the URL "localhost: 8888".