Sir in trading chart of candle stick while opening we see gap up or down and in heikien ashi we see continuous candle what is the difference?

[nithin]

Explained very well on Stockcharts, check this link

Heikin-Ashi Candlesticks are an offshoot from Japanese candlesticks. Heikin-Ashi Candlesticks use the open-close data from the prior period and the open-high-low-close data from the current period to create a combo candlestick. The resulting candlestick filters out some noise in an effort to better capture the trend.