DownAfterLowProba
// The script is useful to inspect probability:
// If previous day closed at lowest price for several days
// how often next day would be red bar
// As one can see gray lines indicate bars with lowest close. If next bar is green, increment diff_hi, overwise increment diff_lo
// Probability is counted as diff_lo / (diff_hi+diff_lo)
// One can copy script and change conditions to count other interesting probabilities
// If previous day closed at lowest price for several days
// how often next day would be red bar
// As one can see gray lines indicate bars with lowest close. If next bar is green, increment diff_hi, overwise increment diff_lo
// Probability is counted as diff_lo / (diff_hi+diff_lo)
// One can copy script and change conditions to count other interesting probabilities