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6_2 Egg development period.R
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6_2 Egg development period.R
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library(raster)
library(ggplot2)
library(ncdf4)
library(RNetCDF)
library(rnaturalearth)
library(rnaturalearthdata)
library(dplyr)
source('Utilities.R')
src<-read.csv("data/sourcelist_3860.csv", header = FALSE)
colnames(src)<-c("ID", "lng", "lat","Country")
ans<-data.frame(Year=c(), lng=c(), lat=c(), Length=c())
date<-as.Date("2020-09-01");
for(ii in 1:nrow(src)){
lng<-src$lng[ii]; lat<-src$lat[ii]
eggdevday<-egg_dev(date, lng, lat, 10, 50)
if(is.Date(eggdevday)){
ll<-as.numeric(eggdevday-date)
ans<-rbind(ans, data.frame(Year=2020, lng=lng, lat=lat, Length=ll))
} else{
ans<-rbind(ans, data.frame(Year=2020, lng=lng, lat=lat, Length=NA))
}
cat(c(ii, ""))
}
ggplot() +
geom_tile(data = ans,
aes(x = lng, y = lat, fill=Length)) +
scale_fill_continuous(type = "viridis", direction=-1, na.value = 'gray') +
labs(fill="DP (days)")+
coord_fixed() +theme_bw() +
theme(axis.line = element_line(colour = "black"),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank(),
panel.border = element_blank(),
panel.background = element_blank(),
axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1))
ggplot(ans[!is.na(ans$Length),], aes(x=Length))+
geom_histogram(bins=20)+
xlab("Developement period (days)")