set data style lines
set grid x
set grid y

set title "Voltage(poti)"
set xlabel "poti"
set ylabel "Voltage, V"
plot [2:99] "poti_cal_volt" using 1:2 title "1.8Vd", \
     "poti_cal_volt" using 1:3 title "1.8Va", \
     "poti_cal_volt" using 1:4 title "3.3Vd", \
     "poti_cal_volt" using 1:5 title "3.3Va"
pause -1

f(x)=a*x+b

set title "V 1.8 digital"
fit [2:99] f(x) "poti_cal_volt" using 1:2 via a, b
plot [2:99] "poti_cal_volt" using 1:2 with points, f(x) with lines
pause -1
set title "V 1.8 digital deviation"
plot [2:99] "poti_cal_volt" using 1:($2-f($1)) with lines
pause -1

set title "V 1.8 analog"
fit [2:99] f(x) "poti_cal_volt" using 1:3 via a, b
plot [2:99] "poti_cal_volt" using 1:3 with points, f(x) with lines
pause -1
set title "V 1.8 analog deviation"
plot [2:99] "poti_cal_volt" using 1:($3-f($1)) with lines
pause -1

set title "V 3.3 digital"
fit [2:99] f(x) "poti_cal_volt" using 1:4 via a, b
plot [2:99] "poti_cal_volt" using 1:4 with points, f(x) with lines
pause -1
set title "V 3.3 digital deviation"
plot [2:99] "poti_cal_volt" using 1:($4-f($1)) with lines
pause -1

# MCM tester only
set title "V 3.3 analog"
fit [2:99] f(x) "poti_cal_volt" using 1:5 via a, b
plot [2:99] "poti_cal_volt" using 1:5 with points, f(x) with lines
pause -1
set title "V 3.3 analog deviation"
plot [2:99] "poti_cal_volt" using 1:($5-f($1)) with lines