MATLAB components for Dash

Dash for MATLAB® provides an interface to use the Dash library and create analytic web applications fully in MATLAB®. Create and share MATLAB® analysis with business stakeholders through Dash, the leading low-code platform for data science web apps!

Examples

This folder contains examples of usage:

• Determine which Button Changed with callback_context, (button)
• Interactive statistical scatter plot with slider, (slider_scatter)
• Multi-input callback example, (multi_input)

Helper_functions (lib)

This folder contains backend helper functions:

• startDash.m - starts the app from a set of components or a gridlayout.
• addLayout.m - builds the layout for the Dash app.
• argsIn.m - Wrapper for Dash callback input arguments.
• argsOut.m - Wrapper for Dash callback output arguments.
• createApp.m - Creates the Dash web server object.
• ui2dash.m - Converts MATLAB UI components to Dash components.
• plotlyfig2dash.m - Converts Plotly MATLAB figures to Dash Graph components.
• Html.m - dash_html_components constructor
• Dcc.m - dash_core_components constructor

Getting Started

Please make sure that you have a compatible Python version installed. If your Python version is different, consider downgrading it or using pyenv.

1. Install Dash plotting library:
   pip install dash

2. Install dash-bootstrap-components:
   pip install dash-bootstrap-components

3. Install Plotly Graphing Library for MATLAB: Download its sources and install in MATLAB® with:

cd ~/Downloads/plotly-graphing-library-for-matlab-master  
plotlysetup_offline()

Don't use plotlysetup_online() with Dash for MATLAB®.

4. Add lib folder to your MATLAB® path:
   addpath('~/dash_matlab/lib')
   (You can also do this in the GUI, add with subfolders lib:

Deploying MATLAB® Dash apps on AWS:

https://github.com/mathworks-ref-arch/matlab-on-aws-win

Please install Matlab and other requirements from this readme on remote EC2 machine and change folder to aws_multi_input example,
run script with these commands:

screen -dmS matt /matlab/bin/matlab -r comm
/matlab/bin/matlab -batch 'multi_arg(8050)' &
/matlab/bin/matlab -batch 'multi_arg(8051)' &

• In the first command, MATLAB® starts with shared session for callback execution from multiple machines,
• In the 2nd and 3rd commans, the Dash app server start with port arguments (ports 8050 and 8051).
• In total, we have 3 MATLAB® instances running for 2 Dash apps at ports 8050 and 8051.

Now Dash web applications can be accessed from any public machine IP and port 8050! Please refer to the [file source code] (https://github.com/plotly/dash_matlab/tree/main/Examples/aws_multi_input) for further implementation details.