library(knitr)
library(lubridate)
tab.iqr.by.lrseg.flow.annual = function(tmp.data, flow.abbreviation) {
flow.names <- grep(flow.abbreviation, colnames(tmp.data), value = TRUE)
date.names <- grep('thisdate', colnames(tmp.data), value = TRUE)
flow.cols <- which(colnames(tmp.data) %in% flow.names)
date.cols <- which(colnames(tmp.data) %in% date.names)
all.cols <- c(date.cols, flow.cols)
flow.data <- as.data.frame(tmp.data[,all.cols])
years <- unique(year(as.Date(flow.data$thisdate)))
tmp.tab <- as.data.frame(matrix(nrow = length(years), ncol = 1))
for (i in 1:length(years)) {
tmp.dat <- flow.data[which(as.numeric(year(as.Date(flow.data$thisdate))) == as.numeric(years[i])),]
tmp.75pct <- signif(as.numeric(quantile(as.numeric(as.matrix(as.data.frame(tmp.dat[,-1]))), 0.75)), 3)
tmp.25pct <- signif(as.numeric(quantile(as.numeric(as.matrix(as.data.frame(tmp.dat[,-1]))), 0.25)), 3)
tmp.iqr <- signif(tmp.75pct - tmp.25pct, 3)
flow.tabler <- paste0(tmp.iqr, ' [', tmp.25pct, ', ', tmp.75pct, ']')
tmp.tab[i, 1] <- flow.tabler
}
colnames(tmp.tab) = c('IQR of Unit Flows (cfs/sq. mi) [25th, 75th]')
rownames(tmp.tab) = c(years)
tmp.tab <- kable(format(tmp.tab, drop0trailing = TRUE))
return(tmp.tab)
}
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