library("dplyr") library("tidyr") library("ggplot2") library("multipleuncertainty") knitr::opts_chunk$set(cache = TRUE)
fig3 <- function(noise){ grid <- seq(0, 200, by=0.5) ## Scale noise comparably for lognormal vs uniform if(noise == "lognormal"){ lo <- 0.0577 # 0.1 / sqrt(3) hi <- 0.2887 # 0.5 / sqrt(3) } else { lo <- 0.1 hi <- 0.5 } small <- multiple_uncertainty(f = logistic, x_grid = grid, sigma_g = lo, sigma_m = lo, sigma_i = lo, noise_dist = noise) growth <- multiple_uncertainty(f = logistic, x_grid = grid, sigma_g = hi, sigma_m = lo, sigma_i = lo, noise_dist = noise) measure <- multiple_uncertainty(f = logistic, x_grid = grid, sigma_g = lo, sigma_m = hi, sigma_i = lo, noise_dist = noise) implement <- multiple_uncertainty(f = logistic, x_grid = grid, sigma_g = lo, sigma_m = lo, sigma_i = hi, noise_dist = noise) df <- data.frame(y_grid = grid, small = small, growth = growth, measure = measure, implement = implement) %>% tidyr::gather(scenario, value, -y_grid) } df <- data.frame(noise = c("uniform", "lognormal")) %>% dplyr::group_by(noise) %>% dplyr::do(fig3(.$noise))
df %>% ggplot(aes(x = y_grid, y = value, col = scenario)) + geom_line() + facet_wrap(~ noise) + xlab("Stock") + ylab("Escapement") + coord_cartesian(xlim = c(0, 150), ylim = c(0,100)) + theme_bw()
reed <- multiple_uncertainty(noise_dist = "lognormal") qplot(seq_along(reed), reed) + coord_cartesian(xlim = c(0, 150), ylim = c(0, 150)) + xlab("Stock") + ylab("Escapement") + theme_bw()
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