i4 Pivot_v1

i4 Pivot_v1 indicator.

Formulas:

P = (yesterday_high + yesterday_low + yesterday_close + yesterday_close) / 4;

R1 = P + P – yesterday_low;
S1 = P + P – yesterday_high;

R2 = P + yesterday_high – yesterday_low;
S2 = P – yesterday_high + yesterday_low;

R3 = P + P – yesterday_low – yesterday_low + yesterday_high;
S3 = P + P – yesterday_high – yesterday_high + yesterday_low;