Hi I have problem with writing a specific netlist in LTspice. As you know LTSpice has only the possiblity of showing the diagrams in some specific parameters such as Voltage and time (different kind of analysis). I want to define a some new elements (sub circuits) and see the changes in diagram while the X and Y axis are showing the new parameters. for example I want to define a sub circuit for wave length and irradiance and see the changes in diagrams and it does not matter that what are the units in the axis but it is important that it acts. for example I see v in one axis but it is actually Irradiance ! another problem : I want to see the axis in parameters which are known for LTSpice. For example I want to see the Power vs Resistance in Ltspice. Could you please help me with this issue ?