Volume in the Charts is different than what gets returned from the API's when I pull volume data (BaseVolume?) from the Bittrex (for example) API every minute, draw a chart from that data and then compare that with the one minute timeframed volume chart (the study chart) on Bittrex it looks totally different.

I used BaseVolume, but i also tried to draw graphs with any other field that gets returned and I can't seem to replace these charts at all with any value. Does anyone have any idea?

Thanks
It's not clear which API call that you are using so I'll give my two ideas on what the problem might be:


If you are using the "getmarketsummary" API call and calling that
every minute then you will get wrong data because this is based on
24-hours. In my opinion, this is a useless feature.
If you are getting the market trades and then calculating the OHLCV
value in 1-minute periods, and those values don't match up with the
Bittrex candle charts then you are probably seeing the 2 to 4 minute
delay that Bittrex has. I use a service (ClueDex) that removes
that delay and I can literally get 1-minute OHLCV candle data as
soon as the minute closes.