OPEN-SOURCE SCRIPT

True Strength Indicator MTF

Here is an example of a script showing a multi-time frame of TSI.

Chart below compares FX EURUSD Daily TSI to 1H TSI

Here is an updated version

study("True Strength Indicator MTF", shorttitle="TSI MTF")
resCustom = input(title="Timeframe", type=resolution, defval="60" )
long = input(title="Long Length", type=integer, defval=25)
short = input(title="Short Length", type=integer, defval=13)
signal = input(title="Signal Length", type=integer, defval=13)
price = close
double_smooth(src, long, short) =>
fist_smooth = ema(src, long)
ema(fist_smooth, short)
pc = change(price)
double_smoothed_pc = double_smooth(pc, long, short)
double_smoothed_abs_pc = double_smooth(abs(pc), long, short)
tsi_value = 100 * (double_smoothed_pc / double_smoothed_abs_pc)
tsi = security(tickerid, resCustom,tsi_value)
plot(tsi, color=black)
plot(ema(tsi, signal), color=red)
hline(0, title="Zero")