Do you have a thermistor model for LT SPICE? Possible parameters would be the 25 DEG C resistance and the B 25 / 50 parameter so the resistance changes correctly when running .temp T1 T2 simulations?
I show one method using a stepped TEMP.
The default of TEMP is 27°C if not specified. Be aware that TEMP is used by every component in your schematic - especially diodes and transistors change their behavior. You can avoid this, if you use another name e. g. TEMP1.
Replace the value of the resistsor with this equation enclosed by curly braces.
.step TEMP 0 50 1
Thank you, this is exactly what I need. I'm temperature compensating a BJT B-E junction so I want the TEMP command to also control the transistor models. I think ADI should make this a component with a menu to enter R at 25 deg and B 25 / 50 for people like me who are not familiar with traditional command line SPICE.