Sometimes you are looking for data for a particular timeframe and you cannot find it. For example, maybe you want 4 hour data, but all you can find is 1 minute data. This post will show you how to convert that data easily and quickly.
If you do not have the complete historical data on the currency pairs you are trading, you may be missing out on some valuable information. But the default Metatrader charts only have data from the past few months. Read this post and make sure that you have the complete picture.