Actually, i got this circuit template from Keysight(under youtube URL) about class E PA, when he tried to show the current and voltage of the GaN HEMT, I found that the form of data display he used was a little weird(maybe because i have never seen it before) which is shown as follows----ts(V,,,,,5) and ts(Is.i,,,1). I have no idea about what ',,,,,5' and ' ,,,1" stand for. Might need your help and thanks in advance.