True Strength Index (TSI) by William Blau Here I suggest to calculate it in the linear way as it make it more smooth and acurate buy and sell can be from -0.8 to 0.8 , can be by cross up of zero or cross down of zero can be by slope difference as seen in color lime vs color red one can add sma and cross or any option you think So this nice improve to this indicator as linear line are much more smooth the regular TSI and we can get sharper signals