drop_na() function request

[yiugn]

dtplyr doesn't seem to provide drop_na() function, could this function be provided in dtplyr in the future?

dayt = day %>% 
   group_by(stockCode) %>% 
   arrange(logDate) %>% 
   mutate(rise = (priceClose/lag(priceClose,1)-1)*100,
          candle = ifelse(priceClose > priceOpen, 1, 0),
          middle = ifelse(priceClose > (priceHigh + priceLow)/2, 1, 0),
          ma3 = rollmean(priceClose, k = 3, fill = NA, align = 'right'),
          ma5 = rollmean(priceClose, k = 5, fill = NA, align = 'right'),
          ma10 = rollmean(priceClose, k = 10, fill = NA, align = 'right'), 
          ovnprofit = lead(priceOpen,1)/priceClose,
          disparity = priceClose/ma5*100) %>% 
   select(-remark) %>% 
   drop_na()

Error in UseMethod("drop_na_") :
클래스 "c('dtplyr_step_group', 'dtplyr_step')"의 객체에 적용된 'drop_na_'에 사용할수 있는 메소드가 없습니다