user126782: This sounds like an easy question but I googled for hours and could not find any info on this.
What is the value used for the open of a candlestick ? Was that value a market sell or a market buy ?
Vice versa what value is used for the close ? Is it the last market sell or market buy ?
I have a data set with market orders and I am trying to create candlesticks out of that data.

user126782: I figured it out. It’s the first (open) or last (close) price traded, which can be buy or sell.

126782: <p>This sounds like an easy question but I googled for hours and could not find any info on this.</p>
<p>What is the value used for the open of a candlestick ? Was that value a market sell or a market buy ?
Vice versa what value is used for the close ? Is it the last market sell or market buy ?</p>
<p>I have a data set with market orders and I am trying to create candlesticks out of that data.</p>
 126782: <p>I figured it out. It’s the first (open) or last (close) price traded, which can be buy or sell.</p>
