** Script originally designed to test real time noise but useful
** for doing averaged plot of repeated RTN runs

** Repeats a run numRuns times then plots an averaged FFT of the
** signal on a node called VOUT. Setup startF endF and numPts for
** frequency range of FFT

netlist design.net


** Config
Let numRuns=50
Let startF=1meg
Let endF=10meg
Let numPts=4096

for idx=0 to numRuns
    Run /file design.net

    let data = vout - mean1(vout)
    if idx=0 then
        let global:result =mag(fft(interp(data,numPts)))
    else
        let global:result = global:result+mag(fft(interp(data,numPts)))
    endif
next idx
Let refVec = ref(vout)
let interval = refVec[length(vout)-1]-refVec[0]

Plot /loglog Truncate(global:result, startF, endF)/numRuns/sqrt(2/interval)