"What is an LSMA?

It stands for Least Squares Moving Average and the indicator plots the endpoint of the linear regression line.
By comparing the current value to the prior value a determination is made of a possible trend,
ie the linear regression line is pointing up or down.
Use the close of the current candle after it is finished and the next candle is forming as the end point.
That avoids the problem of a candle changing the value of the indicator in real time."

( by ForexTsd 11.06.2005 )