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show_dsgmm_curve <- function(spect_em_dsgmm_res, x, y, mix_ratio_init, mu_init, sigma_init, alpha_init, eta_init) {
#trancated Doniach-Sunjic-Gauss
truncated_dsg <- function(x, mu, sigma, alpha, eta) {
((eta*(((gamma(1-alpha)) / ((x-mu)^2+(sqrt(2*log(2))*sigma)^2)^((1-alpha)/2))*cos((pi*alpha/2)+(1-alpha)*atan((x-mu)/(sqrt(2*log(2))*sigma))))) + (1-eta)*dnorm(x, mu, sigma)) /
sum( ((eta*(((gamma(1-alpha)) / ((x-mu)^2+(sqrt(2*log(2))*sigma)^2)^((1-alpha)/2))*cos((pi*alpha/2)+(1-alpha)*atan((x-mu)/(sqrt(2*log(2))*sigma))))) + (1-eta)*dnorm(x, mu, sigma)))
}
es_mu_DSG <- spect_em_dsgmm_res$mu
es_sigma_DSG <- spect_em_dsgmm_res$sigma
es_alpha_DSG <- spect_em_dsgmm_res$alpha
es_eta_DSG <- spect_em_dsgmm_res$eta
es_mix_ratio_DSG <- spect_em_dsgmm_res$mix_ratio
es_mu <- es_mu_DSG + es_sigma_DSG / tan(pi / (2-es_alpha_DSG))
W_K <- spect_em_dsgmm_res$W_K
cal_time <- spect_em_dsgmm_res$cal_time
K <- length(es_mu_DSG)
#Fitting curve
cols <- colorRamp(c("#ff4b00", "#fff100", "#03af7a", "#005aff"))
esDSGMM_EM <- matrix(NA, nrow = K, ncol = length(x))
for(k in 1:K) {
esDSGMM_EM[k, ] <- es_mix_ratio_DSG[k] * truncated_dsg(x = x, mu = es_mu_DSG[k], sigma = es_sigma_DSG[k], alpha = es_alpha_DSG[k], eta = es_eta_DSG[k])
}
esDSGMM <- colSums(esDSGMM_EM)
esDSGMM_c <- matrix(NA, nrow = K, ncol = length(x))
for(k in 1:K) {
esDSGMM_c[k,] <- esDSGMM_EM[k,] * sum(y) / sum(esDSGMM)
}
Est_spect_DSG <- colSums(esDSGMM_c)
x_DSG <- x
for(k in 1:K) {
plot(esDSGMM_c[k,]~x_DSG, pch=19, xlim = c(min(x), max(x)), ylim = c(0, max(y)), col = "black", las = 1, typ = "l", lwd = 2, cex = 0.75, lty = 3, ylab = "Frequency", xlab = "x", main = "")
par(new = TRUE)
}
plot(Est_spect_DSG~x_DSG, pch=19, xlim = c(min(x), max(x)), ylim=c(0, max(y)), col = "tomato3", las = 1, typ = "l", lwd = 2, cex = 0.75, ylab = "Frequency", xlab = "x", main = "Estimted DSGMM")
par(new = TRUE)
plot(y~x_DSG, pch=21, xlim = c(min(x), max(x)), ylim = c(0, max(y)), col = "black", las = 1, typ = "p", lwd = 2, cex = 0.75, ylab = "Frequency", xlab = "x")
plot(spect_em_dsgmm_res$LL, ylab = "L", xlab = "iteration")
if(K > 1) {
for(k in 1:K) {
plot(spect_em_dsgmm_res$MU[,k], type = "l", col = rgb(cols((k-1) / (K-1)) / 255), xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, 100), lwd = 2, ylab = "mu", xlab = "iteration", las = 1)
par(new = TRUE)
}
par(new = FALSE)
for(k in 1:K) {
plot(spect_em_dsgmm_res$SIGMA[,k], type = "l", col = rgb(cols((k-1) / (K-1)) / 255), xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, max(spect_em_dsgmm_res$SIGMA)), lwd = 2, ylab = "sigma", xlab = "iteration", las = 1)
par(new = TRUE)
}
par(new = FALSE)
for(k in 1:K) {
plot(spect_em_dsgmm_res$ALPHA[,k], type = "l", col = rgb(cols((k-1) / (K-1)) / 255), xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, 1), lwd = 2, ylab = "alpha", xlab = "iteration", las = 1)
par(new = TRUE)
}
par(new = FALSE)
for(k in 1:K) {
plot(spect_em_dsgmm_res$ETA[,k], type = "l", col = rgb(cols((k-1) / (K-1)) / 255), xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, 1), lwd = 2, ylab = "eta", xlab = "iteration", las = 1)
par(new = TRUE)
}
par(new = FALSE)
for(k in 1:K) {
plot(spect_em_dsgmm_res$MIX_RATIO[,k], type = "l", col = rgb(cols((k-1) / (K-1)) / 255), xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, max(spect_em_dsgmm_res$MIX_RATIO)),lwd = 2, ylab = "mix_ratio", xlab = "iteration", las = 1)
par(new = TRUE)
}
plot(c(0,0)~c(spect_em_dsgmm_res$it, 0), type = "l", lty = 2, ylab = "", xlab = "", xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, max(spect_em_dsgmm_res$MIX_RATIO)), las = 1)
par(new = FALSE)
} else {
plot(spect_em_dsgmm_res$MU, type = "l", col = "red", xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(min(x), max(x)), lwd = 2, ylab = "mu", xlab = "iteration", las = 1)
plot(spect_em_dsgmm_res$SIGMA, type = "l", col = "red", xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, max(spect_em_dsgmm_res$SIGMA)), lwd = 2, ylab = "sigma", xlab = "iteration", las = 1)
plot(spect_em_dsgmm_res$ALPHA, type = "l", col = "red", xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, max(spect_em_dsgmm_res$ALPHA)), lwd = 2, ylab = "beta", xlab = "iteration", las = 1)
plot(spect_em_dsgmm_res$ETA, type = "l", col = "red", xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, max(spect_em_dsgmm_res$ETA)), lwd = 2, ylab = "eta", xlab = "iteration", las = 1)
plot(spect_em_dsgmm_res$MIX_RATIO, type = "l", col = "red", xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, max(spect_em_dsgmm_res$MIX_RATIO)),lwd = 2, ylab="mix_ratio", xlab = "iteration", las=1)
plot(c(0,0)~c(spect_em_dsgmm_res$it, 0), type = "l", lty = 2, ylab = "", xlab = "", xlim = c(0, length(spect_em_dsgmm_res$LL)), ylim = c(0, max(spect_em_dsgmm_res$MIX_RATIO)), las=1)
par(new = FALSE)
}
}
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