From: Benjamin Auder Date: Mon, 30 Jan 2017 12:35:25 +0000 (+0100) Subject: somewhat unroll the code in WER distances computations X-Git-Url: https://git.auder.net/%7B%7B%20asset%28%27mixstore/css/scripts/img/current/R.css?a=commitdiff_plain;h=47395e4f93feadfb1b8f6ab11742a4616b32c1d5;p=epclust.git somewhat unroll the code in WER distances computations --- diff --git a/old_C_code/stage2_UNFINISHED/src/05_cluster2stepWER.r b/old_C_code/stage2_UNFINISHED/src/05_cluster2stepWER.r index 9b55da1..69939b2 100644 --- a/old_C_code/stage2_UNFINISHED/src/05_cluster2stepWER.r +++ b/old_C_code/stage2_UNFINISHED/src/05_cluster2stepWER.r @@ -42,14 +42,14 @@ rm(synchros09, nas) ## 2. Compute WER distance matrix #### ## _.a CWT -- Filtering the lowest freqs (>6m) #### -# nvoice <- 4 +nvoice <- 4 # # noctave4 = 2^13 = 8192 half hours ~ 180 days -# noctave4 <- adjust.noctave(N = delta, dt = 1, s0 = 2, +noctave4 <- adjust.noctave(N = delta, dt = 1, s0 = 2, # tw = 0, noctave = 13) # # 4 here represent 2^5 = 32 half-hours ~ 1 day -# scalevector4 <- 2^(4:(noctave4 * nvoice) / nvoice) * 2 -# lscvect4 <- length(scalevector4) -# lscvect <- lscvect4 # i should clean my code: werFam demands a lscvect +scalevector4 <- 2^(4:(noctave4 * nvoice) / nvoice) * 2 +lscvect4 <- length(scalevector4) +lscvect <- lscvect4 # i should clean my code: werFam demands a lscvect #17000 colonnes coeff 1, puis 17000 coeff 2... [non : dans chaque tranche du cube] @@ -95,6 +95,96 @@ rm(synchros09, nas) # save(Xwer_dist, file = "../res/2009_synchros200WER.Rdata") # save(Xwer_dist, file = "../res/2009_synchros200-randomWER.Rdata") + + +#lignes 59 à 91 "dépliées" : +Xcwt4 <- toCWT(conso, noctave = noctave4, dt = 1, + scalevector = scalevector4, + lt = delta, smooth = FALSE, + nvoice = nvoice) # observations node with CWT + + #matrix: + ############Xcwt2 <- matrix(0.0, nrow= n, ncol= 2 + delta * lscvect) + Xcwt2 <- matrix(NA_complex_, nrow= n, ncol= 2 + length((c(Xcwt4[,,1])))) + + #NOTE: delta et lscvect pourraient etre gardés à part (communs) + for(i in 1:n) + Xcwt2[i,] <- c(delta, lscvect, Xcwt4[,,i] / max(Mod(Xcwt4[,,i])) ) + + #rm(conso, Xcwt4); gc() + + ## _.b WER^2 distances ######## + Xwer_dist <- matrix(0.0, n, n) + for(i in 1:(n - 1)){ + mat1 <- vect2mat(Xcwt2[i,]) + + #NOTE: vect2mat = as.matrix ?! (dans aux.R) + vect2mat <- function(vect){ + vect <- as.vector(vect) + matrix(vect[-(1:2)], delta, lscvect) + } + + for(j in (i + 1):n){ + mat2 <- vect2mat(Xcwt2[j,]) + num <- Mod(mat1 * Conj(mat2)) + WX <- Mod(mat1 * Conj(mat1)) + WY <- Mod(mat2 * Conj(mat2)) + smsmnum <- smCWT(num, scalevector = scalevector4) + smsmWX <- smCWT(WX, scalevector = scalevector4) + smsmWY <- smCWT(WY, scalevector = scalevector4) + wer2 <- sum(colSums(smsmnum)^2) / + sum( sum(colSums(smsmWX) * colSums(smsmWY)) ) + Xwer_dist[i, j] <- sqrt(delta * lscvect * (1 - wer2)) + Xwer_dist[j, i] <- Xwer_dist[i, j] + } + } + diag(Xwer_dist) <- numeric(n) + +#fonction smCWT (dans aux.R) + smCWT <- function(CWT, sw= 0, tw= 0, swabs= 0, + nvoice= 12, noctave= 2, s0= 2, w0= 2*pi, + lt= 24, dt= 0.5, scalevector ) + { +# noctave <- adjust.noctave(lt, dt, s0, tw, noctave) +# scalevector <- 2^(0:(noctave * nvoice) / nvoice) * s0 + wsp <- Mod(CWT) + smwsp <- smooth.matrix(wsp, swabs) + smsmwsp <- smooth.time(smwsp, tw, dt, scalevector) + smsmwsp + } + + #dans sowas.R +smooth.matrix <- function(wt,swabs){ + + if (swabs != 0) + smwt <- t(filter(t(wt),rep(1,2*swabs+1)/(2*swabs+1))) + else + smwt <- wt + + smwt + +} +smooth.time <- function(wt,tw,dt,scalevector){ + + smwt <- wt + + if (tw != 0){ + for (i in 1:length(scalevector)){ + + twi <- as.integer(scalevector[i]*tw/dt) + smwt[,i] <- filter(wt[,i],rep(1,2*twi+1)/(2*twi+1)) + + } + } + smwt +} + +#et filter() est dans stats:: + +#cf. filters en C dans : https://svn.r-project.org/R/trunk/src/library/stats/src/filter.c + + + load("../res/2009_synchros200WER.Rdata") #load("../res/2009_synchros200-randomWER.Rdata")