This function provides a wrapper to 'ngspice' making it easier to use the software from within MATLAB.

ngspice is an open-source electronic circuit simulator based on the Simulation Program with Integrated Circuit Emphasis (SPICE). It uses a 'netlist' to describe the layout of the circuit which is provided as an input text file. The simulation produces an output file (called a 'rawfile') containing a number of variables including voltages and currents at various points in the circuit.

This function imports the rawfile into MATLAB allowing data to be analyzed and graphed more easily.

The ngspice software must be installed on your computer in order to use this function.