#' daily_channel_stat
#'
#' @description Function to compute daily summary stats of a twitter channel.
#'
#' @param x Data.frame Dataset of tweets
#' @param stream Character Type of stream.
#'
#' @author Istituto per la Bioeconomia Firenze Italy Alfonso Crisci \email{alfonso.crisci@@ibe.cnr.it}
#' @keywords channel, stats, twitter channel.
#' @return daily_channel_final Data.frame of daily stats performed by \code{fastChannelstat}
#'
#'
#' @export
#'
#'
#'
daily_channel_stat=function(x,stream="")
{ res_d=list();
datetemp=unique(x$date);
for ( i in 1:length(datetemp)) {
temp=x[which(x$date == datetemp[i]),]
res_d[[i]]=data.frame(date=as.Date(datetemp[i]),fastChannelstat(temp,check_duplicates=T,stream=stream))
}
res_daily=do.call("rbind",res_d)
date_full=data.frame(date=seq(range(res_daily$date)[1],range(res_daily$date)[2],by=1))
daily_channel_final=merge(date_full,res_daily,all.x=T)
return(daily_channel_final)
}
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