// Chande Momentum Oscillator
// --------------------------
// A momentum oscillator developed by Tushar Chande.

// CHART CONFIGURATION
VSCALE_RANGE(-100, 100);

// USER INPUT
periods = INPUT("Periods", 14, 1, 100);
ovrb = INPUT("Over-Bought Level", 50, 0, 100);
ovrs = INPUT("Over-Sold Level", -50, -100, 0);
linecolor = INPUT("Line Color", Color.Red);
linethickness = INPUT("Line Thickness", 1, 1, 10);
fillcolor = INPUT("Fill Color", Color.Pink);

// CALCULATION
cmo1 = SUM(IF(CLOSE > CLOSE[-1], CLOSE - CLOSE[-1], 0), periods);
cmo2 = SUM(IF(CLOSE[-1] > CLOSE, CLOSE[-1] - CLOSE, 0), periods);
cmo = 100 * ((cmo1 - cmo2) / (cmo1 + cmo2));

// PLOTTING AND SUMMARY
PLOT_WAVECREST(cmo, 0, ovrb, ovrs, linethickness, linecolor, fillcolor);

SUMMARY("CMO({?})  {?:F0}", periods, cmo);