Why have the thermal coefficients (TC) of resistors been removed in version 4.3.1 of QucsStudio? This is no longer compatible with other SPICE simulators.
I agree temperature coefficients should be included in the resistor device. The spice (.cir) import feature Project–>Import_data fails if any resistor has temperature coefficients.
In uSimmics v5.9 (maybe v5.8) the thermal coefficients and more parameters are included in the RF_resistor in Library–>Diverse: