[amibroker] please read this formula and tell what it is?

[learner <boyrinku@xxxxxxxxxxx>]

for( i = 0; i < BarCount; i++ )
{
  if( Close[ i ] > Open[ i ] ) // CORRECT
       Color[ i ] = colorGreen;
  else
       Color[ i ] = colorRed;
}





please read above formula and tell me what is i and i++
what it does exactly?
thankyou for support


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