############################################################################################
#' @title Save Summary Graphs of Data Product Health by Month
#' @author Robert Lee \email{rlee@battelleecology.org}\cr
#' @description For a specified data product ID, this function will produce summary plots of data
#' product availability and validity for their period of record at a site. By default, plots for all
#' sites with data product availability are generated and saved to the specified directory. If
#' \code{site} is specified, only plots for the site(s) passed to that parameter are generated and saved.\cr
#'
#'
#'
#' Because the full period of record for all sites are queried,
#' this function can take a long time to execute.
#' @inheritParams dp.survey
#'
#' @return Outputs a a PDF of plots data on of all measurement levesl, with one PDF per site.
#' If only one site is specified, the GGPlot2 object for the summary plot is also returned,
#' for use in automated report writing.
#' @keywords process quality, data quality, gaps, commissioning, data product, health
#' @examples
#' \dontrun{
#' # For 2d Wind, save all plots to the current working directory:
#' dp.survey(dp.id = "DP1.00001.001", save.dir = getwd())
#' }
#' @export
#'
#'
# changelog and author contributions / copyrights
# Robert Lee (2016-07-017)
# original creation
#
# Robert Lee (2017-11-21)
# Working version
#
# Robert Lee (2017-11-26)
# Color Revamp
#
##############################################################################################
dp.survey.plot=function(dp.id, save.dir, site, pri.var){
Month=NULL
value=NULL
variable=NULL
if(missing(pri.var)){
pri.var=Noble::tis_pri_vars$data.field[Noble::tis_pri_vars$dp.id==dp.id]
}
var.name=gsub(pattern = "mean", replacement = "", x = pri.var, ignore.case = T)
dp.avail = Noble::neon.avail(dp.id = dp.id)
dp.avail = cbind(Month=dp.avail[,1], dp.avail[,which(colnames(dp.avail) %in% Noble::tis_site_config$SiteID)])
if(missing(site)){
dp.sites = colnames(dp.avail[,2:length(colnames(dp.avail))])
#dp.sites = dp.sites[which(dp.sites %in% Noble::tis_site_config$SiteID)]
}else{
dp.sites=site
}
for(i in 1:length(dp.sites)){
health.data=Noble::health.data(site = dp.sites[i], dp.id = dp.id)
health.data$Month=as.Date(paste0(health.data$Month, "-01"))
melt.health=reshape2::melt(data=health.data, id.vars="Month")
plot=ggplot2::ggplot(data=melt.health, ggplot2::aes(x = Month, y = value))+
ggplot2::geom_col(ggplot2::aes(fill=variable), position = ggplot2::position_dodge())+
ggplot2::scale_fill_manual(values = c("#71d678", "#127ba5"), name="Metric")+ # Availability then Validity
ggplot2::theme_bw()+
ggplot2::scale_x_date(date_breaks = "1 month", date_labels = "%b %Y")+
ggplot2::scale_y_continuous(limits = c(0,100), breaks = c(0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100))+
ggplot2::ylab("Percent")+
ggplot2::ggtitle(label = dp.sites[i], subtitle = paste0("Using '", pri.var, "' as data column"))+
ggplot2::theme(axis.text.x = ggplot2::element_text(angle = 90, hjust = 1))+
ggplot2::geom_hline(yintercept = 90, color="#a02c46", show.legend = T)
grDevices::graphics.off()
ggplot2::ggsave(filename = paste0(dp.id, "_health_", dp.sites[i], ".png"), plot = plot, device = "png", path = save.dir, width = 7, height = 5.5, units = "in")
}
#if(length(dp.sites==1)){return(plot)}
}
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