Can some one explain to me what swing high and swing low means that would be very helpfull
Here’s a pretty good explanation
The link Talon gave has a great description, but here is a picture with more “real word” examples.
I took this screenshot months ago to illustrate a different point, but it has a lot (not all) of the swing highs/lows circled. It helps to see how these points come together to make a trendline.