MATLAB Finite Element Analysis Debugging

I'm working on a Finite Element Analysis (FEA) project in MATLAB, focusing on a structural lift platform modeled as a truss. I need assistance with making the MATLAB code and ensuring accurate application of boundary conditions.

Key Tasks:
- Assemble the global stiffness matrix
- Solve the system of equations
- Visualize the displacement curve

Deliverables:
- Nodal displacements
- Reaction forces
- Graph showing structural deformation under applied loads

Ideal Skills:
- Proficiency in MATLAB
- Strong understanding of FEA and FEM
- Experience with truss structures and boundary conditions
- Ability to create visual plots in MATLAB