<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="generator" content="pandoc" /> <meta name="author" content="Joyce Hsiao" /> <title>Training dataset</title> <script src="site_libs/jquery-1.11.3/jquery.min.js"></script> <meta name="viewport" content="width=device-width, initial-scale=1" /> <link href="site_libs/bootstrap-3.3.5/css/cosmo.min.css" rel="stylesheet" /> <script src="site_libs/bootstrap-3.3.5/js/bootstrap.min.js"></script> <script src="site_libs/bootstrap-3.3.5/shim/html5shiv.min.js"></script> <script src="site_libs/bootstrap-3.3.5/shim/respond.min.js"></script> <script src="site_libs/navigation-1.1/tabsets.js"></script> <link href="site_libs/highlightjs-9.12.0/textmate.css" rel="stylesheet" /> <script src="site_libs/highlightjs-9.12.0/highlight.js"></script> <link href="site_libs/font-awesome-4.5.0/css/font-awesome.min.css" rel="stylesheet" /> <style 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$(document).ready(function () { window.buildTabsets("TOC"); }); </script> <!-- code folding --> <div class="navbar navbar-default navbar-fixed-top" role="navigation"> <div class="container"> <div class="navbar-header"> <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar"> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="index.html">fucci-seq</a> </div> <div id="navbar" class="navbar-collapse collapse"> <ul class="nav navbar-nav"> <li> <a href="index.html">Home</a> </li> <li> <a href="about.html">About</a> </li> <li> <a href="license.html">License</a> </li> </ul> <ul class="nav navbar-nav navbar-right"> <li> <a href="https://github.com/jdblischak/fucci-seq"> <span class="fa fa-github"></span> </a> </li> </ul> </div><!--/.nav-collapse --> </div><!--/.container --> </div><!--/.navbar --> <!-- Add a small amount of space between sections. --> <style type="text/css"> div.section { padding-top: 12px; } </style> <div class="fluid-row" id="header"> <h1 class="title toc-ignore">Training dataset</h1> <h4 class="author"><em>Joyce Hsiao</em></h4> </div> <div id="TOC"> <ul> <li><a href="#extract-data-from-the-top-101-genes-identified">Extract data from the top 101 genes identified</a></li> <li><a href="#supervised-methods">Supervised methods</a><ul> <li><a href="#results">Results</a></li> </ul></li> <li><a href="#pcs-of-gene-expression">PCs of gene expression</a></li> <li><a href="#unsupervsied-methods-fitted-across-then-extract-test-samples">Unsupervsied methods fitted across then extract test samples</a></li> <li><a href="#unsupervsied-methods-fitt-for-each-test-sample">Unsupervsied methods fitt for each test sample</a></li> <li><a href="#correlation-between-predicted-times">Correlation between predicted times</a></li> <li><a href="#session-information">Session information</a></li> </ul> </div> <!-- The file analysis/chunks.R contains chunks that define default settings shared across the workflowr files. --> <!-- Update knitr chunk options --> <!-- Insert the date the file was last updated --> <p><strong>Last updated:</strong> 2018-06-24</p> <!-- Insert the code version (Git commit SHA1) if Git repository exists and R package git2r is installed --> <p><strong>Code version:</strong> 6a336e9</p> <hr /> <div id="extract-data-from-the-top-101-genes-identified" class="section level2"> <h2>Extract data from the top 101 genes identified</h2> <pre class="r"><code>library(Biobase) df <- readRDS(file="../data/eset-final.rds") pdata <- pData(df) fdata <- fData(df) # select endogeneous genes counts <- exprs(df)[grep("ENSG", rownames(df)), ] log2cpm.all <- t(log2(1+(10^6)*(t(counts)/pdata$molecules))) #macosko <- readRDS("data/cellcycle-genes-previous-studies/rds/macosko-2015.rds") counts <- counts[,order(pdata$theta)] log2cpm.all <- log2cpm.all[,order(pdata$theta)] pdata <- pdata[order(pdata$theta),] log2cpm.quant <- readRDS("../output/npreg-trendfilter-quantile.Rmd/log2cpm.quant.rds") # select external validation samples set.seed(99) nvalid <- round(ncol(log2cpm.quant)*.15) ii.valid <- sample(1:ncol(log2cpm.quant), nvalid, replace = F) ii.nonvalid <- setdiff(1:ncol(log2cpm.quant), ii.valid) log2cpm.quant.nonvalid <- log2cpm.quant[,ii.nonvalid] log2cpm.quant.valid <- log2cpm.quant[,ii.valid] theta <- pdata$theta names(theta) <- rownames(pdata) # theta.nonvalid <- theta_moved[ii.nonvalid] theta.nonvalid <- theta[ii.nonvalid] theta.valid <- theta[ii.valid] sig.genes <- readRDS("../output/npreg-trendfilter-quantile.Rmd/out.stats.ordered.sig.101.rds") expr.sig <- log2cpm.quant.nonvalid[rownames(log2cpm.quant.nonvalid) %in% rownames(sig.genes), ] # get predicted times # set training samples source("../peco/R/primes.R") source("../peco/R/partitionSamples.R") parts <- partitionSamples(1:ncol(log2cpm.quant.nonvalid), runs=5, nsize.each = rep(151,5)) part_indices <- parts$partitions</code></pre> <hr /> </div> <div id="supervised-methods" class="section level2"> <h2>Supervised methods</h2> <p>Fitting</p> <pre class="r"><code>source("../peco/R/fit.cyclical.R") source("../peco/R/cycle.npreg.R") source("../code/utility.R")</code></pre> <pre class="r"><code>fits.nw <- vector("list", 5) for (run in 1:5) { print(run) # fitting training data Y_train <- expr.sig[,part_indices[[run]]$train] theta_train <- theta.nonvalid[part_indices[[run]]$train] fit.train <- cycle.npreg.insample(Y = Y_train, theta = theta_train, ncores=15, method.trend="npcirc.nw") # fitting test data Y_test <- expr.sig[,part_indices[[run]]$test] theta_test <- theta.nonvalid[part_indices[[run]]$test] fit.test <- cycle.npreg.outsample(Y_test=Y_test, sigma_est=fit.train$sigma_est, funs_est=fit.train$funs_est, method.grid = "uniform", method.trend="npcirc.nw", ncores=15) fits.nw[[run]] <- list(fit.train=fit.train, fit.test=fit.test) } saveRDS(fits.nw, file = "../output/method-train-classifiers.Rmd/fits.nw.rds") fits.trend2 <- vector("list", 5) for (run in 1:5) { print(run) # fitting training data Y_train <- expr.sig[,part_indices[[run]]$train] theta_train <- theta.nonvalid[part_indices[[run]]$train] fit.train <- cycle.npreg.insample(Y = Y_train, theta = theta_train, polyorder=2, ncores=15, method.trend="trendfilter") # fitting test data Y_test <- expr.sig[,part_indices[[run]]$test] theta_test <- theta.nonvalid[part_indices[[run]]$test] fit.test <- cycle.npreg.outsample(Y_test=Y_test, sigma_est=fit.train$sigma_est, funs_est=fit.train$funs_est, method.grid = "uniform", method.trend="trendfilter", polyorder=2, ncores=15) fits.trend2[[run]] <- list(fit.train=fit.train, fit.test=fit.test) } saveRDS(fits.trend2, file = "../output/method-train-classifiers.Rmd/fits.trend2.rds")</code></pre> <p>load results</p> <pre class="r"><code>fits.nw <- readRDS(file = "../output/method-train-classifiers.Rmd/fits.nw.rds") fits.trend2 <- readRDS(file = "../output/method-train-classifiers.Rmd/fits.trend2.rds")</code></pre> <div id="results" class="section level3"> <h3>Results</h3> <p>Compute metrics</p> <pre class="r"><code>xy_time <- lapply(1:5, function(run) { xy <- data.frame( ref_time=theta.nonvalid[part_indices[[run]]$test], pred_time_nw=fits.nw[[run]]$fit.test$cell_times_est[ match(names(theta.nonvalid[part_indices[[run]]$test]), names(fits.nw[[run]]$fit.test$cell_times_est))], pred_time_trend2=fits.trend2[[run]]$fit.test$cell_times_est[ match(names(theta.nonvalid[part_indices[[run]]$test]), names(fits.trend2[[run]]$fit.test$cell_times_est))], dapi=pdata$gfp.median.log10sum.adjust[match(names(theta.nonvalid[part_indices[[run]]$test]), rownames(pdata))]) return(xy) }) for (i in 1:5) { xy_time[[i]]$diff_time_nw <- pmin( abs(xy_time[[i]]$pred_time_nw-xy_time[[i]]$ref_time), abs(xy_time[[i]]$pred_time_nw-(2*pi-xy_time[[i]]$ref_time))) xy_time[[i]]$diff_time_trend2 <- pmin( abs(xy_time[[i]]$pred_time_trend2-xy_time[[i]]$ref_time), abs(xy_time[[i]]$pred_time_trend2-(2*pi-xy_time[[i]]$ref_time))) } mean(sapply(xy_time, function(x) mean(x$diff_time_trend2))/2/pi)</code></pre> <pre><code>[1] 0.09360664</code></pre> <pre class="r"><code>mean(sapply(xy_time, function(x) mean(x$diff_time_nw))/2/pi)</code></pre> <pre><code>[1] 0.09627132</code></pre> <p>Circular rank correlation</p> <pre class="r"><code># source("../peco/R/cycle.corr.R") # corrs.rank <- lapply(1:5, function(i) { # data.frame(cbind(nw=rFLRank.IndTestRand(xy_time[[i]]$ref_time, xy_time[[i]]$pred_time_nw), # trend2=rFLRank.IndTestRand(xy_time[[i]]$ref_time, xy_time[[i]]$pred_time_trend2)), # nw.trend2=rFLRank.IndTestRand(xy_time[[i]]$pred_time_nw, xy_time[[i]]$pred_time_trend2)) # }) # # mean(sapply(1:5, function(i) corrs.rank[[i]]$trend2[1])) # sd(sapply(1:5, function(i) corrs.rank[[i]]$trend2[1])) # # mean(sapply(1:5, function(i) corrs.rank[[i]]$nw[1])) # sd(sapply(1:5, function(i) corrs.rank[[i]]$nw[1])) # # mean(sapply(1:5, function(i) corrs.rank[[i]]$nw.trend2[1])) # sd(sapply(1:5, function(i) corrs.rank[[i]]$nw.trend2[1]))</code></pre> <p>PVE</p> <pre class="r"><code>source("../peco/R/utility.R") nw <- sapply(1:5, function(i) get.pve(with(xy_time[[i]],dapi[order(pred_time_nw)]))) trend2 <- sapply(1:5, function(i) get.pve(with(xy_time[[i]],dapi[order(pred_time_trend2)]))) save(nw, trend2, file="../output/method-train-classifiers.Rmd/pve.methods.rda")</code></pre> <pre class="r"><code>load(file="../output/method-train-classifiers.Rmd/pve.methods.rda") cbind(mean(trend2),sd(trend2))</code></pre> <pre><code> [,1] [,2] [1,] 0.2848364 0.07619723</code></pre> <pre class="r"><code>cbind(mean(nw),sd(nw))</code></pre> <pre><code> [,1] [,2] [1,] 0.2176942 0.08988926</code></pre> <p>plots</p> <pre class="r"><code>Y_test <- expr.sig[,part_indices[[1]]$test] theta_test <- theta.nonvalid[part_indices[[1]]$test] time_nw <- fits.nw[[1]]$fit.test$cell_times_est[match(names(theta_test), names(fits.nw[[1]]$fit.test$cell_times_est))] time_trend2 <- fits.trend2[[1]]$fit.test$cell_times_est[match(names(theta_test), names(fits.trend2[[1]]$fit.test$cell_times_est))] par(mfrow=c(1,2)) plot(theta_test, time_nw, ylab="estimated time", xlab="training labels", main = "NPcirc.nw") abline(0,1, col="blue") plot(theta_test, time_trend2, ylab="estimated time", xlab="training labels", main = "trendfilter") abline(0,1, col="blue")</code></pre> <p><img src="figure/method-train-classifiers.Rmd/unnamed-chunk-9-1.png" width="672" style="display: block; margin: auto;" /></p> <hr /> </div> </div> <div id="pcs-of-gene-expression" class="section level2"> <h2>PCs of gene expression</h2> <pre class="r"><code>library(circular) source("../peco/R/cycle.corr.R") for (i in 1:5) { ref_time <- theta.nonvalid[part_indices[[i]]$test] expr_sub <- expr.sig[,part_indices[[i]]$test] pc_expr <- prcomp(t(expr_sub), scale=T) pred_time_pc_expr <- as.numeric(coord2rad(cbind(pc_expr$x[,1],pc_expr$x[,2]))) #plot(pred_time_pc_expr, ref_time) pred_time_pc_expr_shift <- rotation(ref_time, pred_time_pc_expr)$y2shift names(pred_time_pc_expr_shift) <- colnames(expr_sub) xy_time[[i]]$pred_time_pc <- pred_time_pc_expr_shift } for (i in 1:5) { xy_time[[i]]$diff_time_pc <- pmin( abs(xy_time[[i]]$pred_time_pc-xy_time[[i]]$ref_time), abs(xy_time[[i]]$pred_time_pc-(2*pi-xy_time[[i]]$ref_time))) } mean(sapply(xy_time, function(x) mean(x$diff_time_pc)))/2/pi</code></pre> <pre><code>[1] 0.1187757</code></pre> <pre class="r"><code>source("../peco/R/utility.R") source("../peco/R/fit.trendfilter.generic.R") pc_pve <- sapply(xy_time, function(x) get.pve(x$dapi[order(x$pred_time_pc)]))</code></pre> <pre><code>Fold 1 ... Fold 2 ... Fold 3 ... Fold 4 ... Fold 5 ... Fold 1 ... Fold 2 ... Fold 3 ... Fold 4 ... Fold 5 ... Fold 1 ... Fold 2 ... Fold 3 ... Fold 4 ... Fold 5 ... Fold 1 ... Fold 2 ... Fold 3 ... Fold 4 ... Fold 5 ... Fold 1 ... Fold 2 ... Fold 3 ... Fold 4 ... Fold 5 ... </code></pre> <pre class="r"><code>mean(pc_pve)</code></pre> <pre><code>[1] 0.1208765</code></pre> <pre class="r"><code>sd(pc_pve)</code></pre> <pre><code>[1] 0.06477794</code></pre> <pre class="r"><code>par(mfrow=c(1,1)) plot(xy_time[[1]]$ref_time, xy_time[[1]]$pred_time_pc, xlab="training labels", ylab="estimated cell times", main="PC-based") abline(0,1, col="blue")</code></pre> <p><img src="figure/method-train-classifiers.Rmd/unnamed-chunk-10-1.png" width="672" style="display: block; margin: auto;" /></p> <hr /> </div> <div id="unsupervsied-methods-fitted-across-then-extract-test-samples" class="section level2"> <h2>Unsupervsied methods fitted across then extract test samples</h2> <p>the average prediction error across the test samples way higher than for all. this suggest that we should fit for each test sample at a time</p> <pre class="r"><code># get predicted times # set training samples source("../peco/R/primes.R") source("../peco/R/partitionSamples.R") source("../peco/R/fit.cyclical.R") source("../peco/R/cycle.npreg.R") source("../peco/R/utility.R") # select external validation samples set.seed(99) nvalid <- round(ncol(log2cpm.quant)*.15) ii.valid <- sample(1:ncol(log2cpm.quant), nvalid, replace = F) ii.nonvalid <- setdiff(1:ncol(log2cpm.quant), ii.valid) log2cpm.quant.nonvalid <- log2cpm.quant[,ii.nonvalid] log2cpm.quant.valid <- log2cpm.quant[,ii.valid] theta <- pdata$theta names(theta) <- rownames(pdata) # theta.nonvalid <- theta_moved[ii.nonvalid] theta.nonvalid <- theta[ii.nonvalid] theta.valid <- theta[ii.valid] sig.genes <- readRDS("../output/npreg-trendfilter-quantile.Rmd/out.stats.ordered.sig.101.rds") expr.sig <- log2cpm.quant.nonvalid[rownames(log2cpm.quant.nonvalid) %in% rownames(sig.genes), ]</code></pre> <p>Fitting</p> <pre class="r"><code>source("../peco/R/unsupervised.R") source("../peco/R/cycle.npreg.R") source("../peco/R/fit.cyclical.R") theta_initial=initialize_grids(expr.sig, method.grid="pca") ### npcirc.nw fit.nw.unsup <- cycle.npreg.unsupervised(Y=expr.sig, theta=theta_initial, ncores=15, method.trend="npcirc.nw", maxiter=30, verbose=TRUE, tol=1) fit.nw.unsup$ref_time <- theta_true fit.nw.unsup$cell_times_est_shift <- with(fit.nw.unsup, rotation(ref_time, cell_times_est[match(names(cell_times_est), names(ref_time))])$y2shift) fit.nw.unsup$diff_time <- with(fit.nw.unsup, pmin( abs(cell_times_est_shift-ref_time), abs(cell_times_est_shift-(2*pi-ref_time)))) saveRDS(fit.nw.unsup, "../output/method-train-classifiers.Rmd/fit.nw.unsup.rds" ) ### bspline fit.bspline.unsup <- cycle.npreg.unsupervised(Y=expr.sig, theta=theta_initial, ncores=15, method.trend="bspline", maxiter=30, verbose=TRUE, tol=1) fit.bspline.unsup$ref_time <- theta_true fit.bspline.unsup$cell_times_est_shift <- with(fit.bspline.unsup, rotation(ref_time, cell_times_est[match(names(cell_times_est), names(ref_time))])$y2shift) fit.bspline.unsup$diff_time <- with(fit.bspline.unsup, pmin(abs(cell_times_est_shift-ref_time), abs(cell_times_est_shift-(2*pi-ref_time)))) saveRDS(fit.bspline.unsup, "../output/method-train-classifiers.Rmd/fit.bspline.unsup.rds" ) ### loess fit.loess.unsup <- cycle.npreg.unsupervised(Y=expr.sig, theta=theta_initial, ncores=15, method.trend="loess", maxiter=30, verbose=TRUE, tol=1) fit.loess.unsup$ref_time <- theta_true fit.loess.unsup$cell_times_est_shift <- with(fit.loess.unsup, rotation(ref_time, cell_times_est[match(names(cell_times_est), names(ref_time))])$y2shift) fit.loess.unsup$diff_time <- with(fit.loess.unsup, pmin(abs(cell_times_est_shift-ref_time), abs(cell_times_est_shift-(2*pi-ref_time)))) saveRDS(fit.loess.unsup, "../output/method-train-classifiers.Rmd/fit.loess.unsup.rds" ) ### trendfilter fit.trend2.unsup <- cycle.npreg.unsupervised(Y=expr.sig, theta=theta_initial, ncores=15, method.trend="trendfilter", polyorder=2, maxiter=30, verbose=TRUE, tol=1) fit.trend2.unsup$ref_time <- theta_true fit.trend2.unsup$cell_times_est_shift <- with(fit.trend2.unsup, rotation(ref_time, cell_times_est[match(names(cell_times_est), names(ref_time))])$y2shift) fit.trend2.unsup$diff_time <- with(fit.trend2.unsup, pmin(abs(cell_times_est_shift-ref_time), abs(cell_times_est_shift-(2*pi-ref_time)))) saveRDS(fit.trend2.unsup, "../output/method-train-classifiers.Rmd/fit.trend2.unsup.rds" )</code></pre> <pre class="r"><code>fit.nw.unsup <- readRDS("../output/method-train-classifiers.Rmd/fit.nw.unsup.rds") fit.trend2.unsup <- readRDS("../output/method-train-classifiers.Rmd/fit.trend2.unsup.rds") fit.bspline.unsup <- readRDS("../output/method-train-classifiers.Rmd/fit.bspline.unsup.rds") fit.loess.unsup <- readRDS("../output/method-train-classifiers.Rmd/fit.loess.unsup.rds") xy_time <- lapply(1:5, function(i) { data.frame(ref_time=theta.nonvalid[match(names(theta.nonvalid[part_indices[[i]]$test]), colnames(expr.sig))], pred_time_nw=fit.nw.unsup$cell_times_est_shift[ match(names(theta.nonvalid[part_indices[[i]]$test]), names(fit.nw.unsup$cell_times_est_shift))], pred_time_trend2=fit.trend2.unsup$cell_times_est_shift[ match(names(theta.nonvalid[part_indices[[i]]$test]), names(fit.trend2.unsup$cell_times_est_shift))], pred_time_bspline=fit.bspline.unsup$cell_times_est_shift[ match(names(theta.nonvalid[part_indices[[i]]$test]), names(fit.bspline.unsup$cell_times_est_shift))], pred_time_loess=fit.loess.unsup$cell_times_est_shift[ match(names(theta.nonvalid[part_indices[[i]]$test]), names(fit.loess.unsup$cell_times_est_shift))], diff_time_nw=fit.nw.unsup$cell_times_est_shift[ match(names(theta.nonvalid[part_indices[[i]]$test]), names(fit.nw.unsup$diff_time))], diff_time_trend2=fit.trend2.unsup$cell_times_est_shift[ match(names(theta.nonvalid[part_indices[[i]]$test]), names(fit.trend2.unsup$diff_time))], diff_time_bspline=fit.bspline.unsup$cell_times_est_shift[ match(names(theta.nonvalid[part_indices[[i]]$test]), names(fit.bspline.unsup$diff_time))], diff_time_loess=fit.loess.unsup$cell_times_est_shift[ match(names(theta.nonvalid[part_indices[[i]]$test]), names(fit.loess.unsup$diff_time))], dapi=pdata$dapi.median.log10sum.adjust[ match(names(theta.nonvalid[part_indices[[i]]$test]),rownames(pdata))]) }) mean(sapply(1:5, function(i) mean(xy_time[[i]]$diff_time_nw)))/(2*pi)/(pi/(2*pi))</code></pre> <pre><code>[1] 1.109325</code></pre> <pre class="r"><code>mean(sapply(1:5, function(i) mean(xy_time[[i]]$diff_time_trend2)))/(2*pi)/(pi/(2*pi))</code></pre> <pre><code>[1] 0.6886358</code></pre> <pre class="r"><code>mean(sapply(1:5, function(i) mean(xy_time[[i]]$diff_time_bspline)))/(2*pi)/(pi/(2*pi))</code></pre> <pre><code>[1] 1.132689</code></pre> <pre class="r"><code>mean(sapply(1:5, function(i) mean(xy_time[[i]]$diff_time_loess)))/(2*pi)/(pi/(2*pi))</code></pre> <pre><code>[1] 1.116159</code></pre> <pre class="r"><code>mean(fit.nw.unsup$diff_time)/(2*pi)/(pi/(2*pi))</code></pre> <pre><code>[1] 0.262197</code></pre> <pre class="r"><code>mean(fit.trend2.unsup$diff_time)/(2*pi)/(pi/(2*pi))</code></pre> <pre><code>[1] 0.3221262</code></pre> <pre class="r"><code>mean(fit.bspline.unsup$diff_time)/(2*pi)/(pi/(2*pi))</code></pre> <pre><code>[1] 0.2598507</code></pre> <pre class="r"><code>mean(fit.loess.unsup$diff_time)/(2*pi)/(pi/(2*pi))</code></pre> <pre><code>[1] 0.3217046</code></pre> <hr /> </div> <div id="unsupervsied-methods-fitt-for-each-test-sample" class="section level2"> <h2>Unsupervsied methods fitt for each test sample</h2> <pre class="r"><code># get predicted times # set training samples source("../peco/R/primes.R") source("../peco/R/partitionSamples.R") source("../peco/R/fit.cyclical.R") source("../peco/R/cycle.npreg.R") source("../peco/R/utility.R") # select external validation samples set.seed(99) nvalid <- round(ncol(log2cpm.quant)*.15) ii.valid <- sample(1:ncol(log2cpm.quant), nvalid, replace = F) ii.nonvalid <- setdiff(1:ncol(log2cpm.quant), ii.valid) log2cpm.quant.nonvalid <- log2cpm.quant[,ii.nonvalid] log2cpm.quant.valid <- log2cpm.quant[,ii.valid] theta <- pdata$theta names(theta) <- rownames(pdata) # theta.nonvalid <- theta_moved[ii.nonvalid] theta.nonvalid <- theta[ii.nonvalid] theta.valid <- theta[ii.valid] sig.genes <- readRDS("../output/npreg-trendfilter-quantile.Rmd/out.stats.ordered.sig.101.rds") expr.sig <- log2cpm.quant.nonvalid[rownames(log2cpm.quant.nonvalid) %in% rownames(sig.genes), ]</code></pre> <p>Fitting</p> <pre class="r"><code>source("../peco/R/unsupervised.R") source("../peco/R/cycle.npreg.R") source("../peco/R/fit.cyclical.R") source("../peco/R/cycle.corr.R") fit.nw.unsup.split <- vector("list", 5) for (run in 1:5) { print(run) # fitting training data # fitting test data theta_test <- theta.nonvalid[part_indices[[run]]$test] Y_test <- expr.sig[,part_indices[[run]]$test] theta_initial <- initialize_grids(Y_test, method.grid="pca") names(theta_initial) <- colnames(Y_test) fit.nw.unsup.split[[run]] <- cycle.npreg.unsupervised(Y=Y_test, theta=theta_initial, ncores=15, method.trend="npcirc.nw", maxiter=30, verbose=TRUE, tol=1) fit.nw.unsup.split[[run]]$ref_time <- theta_test fit.nw.unsup.split[[run]]$cell_times_est_shift <- with(fit.nw.unsup.split[[run]], rotation(ref_time, cell_times_est[match(names(cell_times_est), names(ref_time))])$y2shift) fit.nw.unsup.split[[run]]$diff_time <- with(fit.nw.unsup.split[[run]], pmin(abs(cell_times_est_shift-ref_time), abs(cell_times_est_shift-(2*pi-ref_time)))) } saveRDS(fit.nw.unsup.split, "../output/method-train-classifiers.Rmd/fit.nw.unsup.split.rds" ) ### bspline fit.bspline.unsup.split <- vector("list", 5) for (run in 1:5) { print(run) # fitting training data # fitting test data theta_test <- theta.nonvalid[part_indices[[run]]$test] Y_test <- expr.sig[,part_indices[[run]]$test] theta_initial <- initialize_grids(Y_test, method.grid="pca") names(theta_initial) <- colnames(Y_test) fit.bspline.unsup.split[[run]] <- cycle.npreg.unsupervised(Y=Y_test, theta=theta_initial, ncores=15, method.trend="bspline", maxiter=30, verbose=TRUE, tol=1) fit.bspline.unsup.split[[run]]$ref_time <- theta_test fit.bspline.unsup.split[[run]]$cell_times_est_shift <- with(fit.bspline.unsup.split[[run]], rotation(ref_time, cell_times_est[match(names(cell_times_est), names(ref_time))])$y2shift) fit.bspline.unsup.split[[run]]$diff_time <- with(fit.bspline.unsup.split[[run]], pmin(abs(cell_times_est_shift-ref_time), abs(cell_times_est_shift-(2*pi-ref_time)))) } saveRDS(fit.bspline.unsup.split, "../output/method-train-classifiers.Rmd/fit.bspline.unsup.split.rds") ### loess fit.loess.unsup.split <- vector("list", 5) for (run in 1:5) { print(run) # fitting training data # fitting test data theta_test <- theta.nonvalid[part_indices[[run]]$test] Y_test <- expr.sig[,part_indices[[run]]$test] theta_initial <- initialize_grids(Y_test, method.grid="pca") names(theta_initial) <- colnames(Y_test) fit.loess.unsup.split[[run]] <- cycle.npreg.unsupervised(Y=Y_test, theta=theta_initial, ncores=15, method.trend="loess", maxiter=30, verbose=TRUE, tol=1) fit.loess.unsup.split[[run]]$ref_time <- theta_test fit.loess.unsup.split[[run]]$cell_times_est_shift <- with(fit.loess.unsup.split[[run]], rotation(ref_time, cell_times_est[match(names(cell_times_est), names(ref_time))])$y2shift) fit.loess.unsup.split[[run]]$diff_time <- with(fit.loess.unsup.split[[run]], pmin(abs(cell_times_est_shift-ref_time), abs(cell_times_est_shift-(2*pi-ref_time)))) } saveRDS(fit.loess.unsup.split, "../output/method-train-classifiers.Rmd/fit.loess.unsup.split.rds") fit.trend2.unsup.split <- vector("list", 5) for (run in 1:5) { print(run) # fitting training data # fitting test data theta_test <- theta.nonvalid[part_indices[[run]]$test] Y_test <- expr.sig[,part_indices[[run]]$test] theta_initial <- initialize_grids(Y_test, method.grid="pca") names(theta_initial) <- colnames(Y_test) fit.trend2.unsup.split[[run]] <- cycle.npreg.unsupervised(Y=Y_test, theta=theta_initial, ncores=15, method.trend="trendfilter", polyorder=2, maxiter=30, verbose=TRUE, tol=1) fit.trend2.unsup.split[[run]]$ref_time <- theta_test fit.trend2.unsup.split[[run]]$cell_times_est_shift <- with(fit.trend2.unsup.split[[run]], rotation(ref_time, cell_times_est[match(names(cell_times_est), names(ref_time))])$y2shift) fit.trend2.unsup.split[[run]]$diff_time <- with(fit.trend2.unsup.split[[run]], pmin(abs(cell_times_est_shift-ref_time), abs(cell_times_est_shift-(2*pi-ref_time)))) } saveRDS(fit.trend2.unsup.split, "../output/method-train-classifiers.Rmd/fit.trend2.unsup.split.rds")</code></pre> <pre class="r"><code>fit.nw.unsup.split <- readRDS("../output/method-train-classifiers.Rmd/fit.nw.unsup.split.rds") fit.trend2.unsup.split <- readRDS("../output/method-train-classifiers.Rmd/fit.trend2.unsup.split.rds") fit.bspline.unsup.split <- readRDS("../output/method-train-classifiers.Rmd/fit.bspline.unsup.split.rds") fit.loess.unsup.split <- readRDS("../output/method-train-classifiers.Rmd/fit.loess.unsup.split.rds") xy_time_unsup <- lapply(1:5, function(i) { data.frame(ref_time=fit.nw.unsup.split[[i]]$ref_time, pred_time_nw=with(fit.nw.unsup.split[[i]], cell_times_est_shift[ match(names(ref_time),names(cell_times_est_shift))]), pred_time_bspline=with(fit.bspline.unsup.split[[i]], cell_times_est_shift[ match(names(ref_time),names(cell_times_est_shift))]), pred_time_loess=with(fit.loess.unsup.split[[i]], cell_times_est_shift[ match(names(ref_time),names(cell_times_est_shift))]), pred_time_trend2=with(fit.trend2.unsup.split[[i]], cell_times_est_shift[ match(names(ref_time),names(cell_times_est_shift))]), diff_time_nw=with(fit.nw.unsup.split[[i]], diff_time[ match(names(ref_time),names(diff_time))]), diff_time_bspline=with(fit.bspline.unsup.split[[i]], diff_time[ match(names(ref_time),names(diff_time))]), diff_time_loess=with(fit.loess.unsup.split[[i]], diff_time[ match(names(ref_time),names(diff_time))]), diff_time_trend2=with(fit.trend2.unsup.split[[i]], diff_time[ match(names(ref_time),names(diff_time))]), dapi=pdata$dapi.median.log10sum.adjust[ match(names(fit.nw.unsup.split[[i]]$ref_time),rownames(pdata))] ) }) mean(sapply(1:5, function(i) mean(xy_time_unsup[[i]]$diff_time_trend2)))/(2*pi)</code></pre> <pre><code>[1] 0.1447239</code></pre> <pre class="r"><code>mean(sapply(1:5, function(i) mean(xy_time_unsup[[i]]$diff_time_nw)))/(2*pi)</code></pre> <pre><code>[1] 0.1209679</code></pre> <pre class="r"><code>mean(sapply(1:5, function(i) mean(xy_time_unsup[[i]]$diff_time_bspline)))/(2*pi)</code></pre> <pre><code>[1] 0.1200142</code></pre> <pre class="r"><code>mean(sapply(1:5, function(i) mean(xy_time_unsup[[i]]$diff_time_loess)))/(2*pi)</code></pre> <pre><code>[1] 0.1536686</code></pre> <p>PVE</p> <pre class="r"><code>source("../peco/R/utility.R") pve.split.nw <- sapply(1:5, function(i) get.pve(with(xy_time_unsup[[i]], dapi[order(pred_time_nw)]))) pve.split.trend2 <- sapply(1:5, function(i) get.pve(with(xy_time_unsup[[i]], dapi[order(pred_time_trend2)]))) pve.split.bspline <- sapply(1:5, function(i) get.pve(with(xy_time_unsup[[i]], dapi[order(pred_time_bspline)]))) pve.split.loess <- sapply(1:5, function(i) get.pve(with(xy_time_unsup[[i]], dapi[order(pred_time_loess)]))) save(pve.split.nw, pve.split.trend2, pve.split.bspline, pve.split.loess, file="../output/method-train-classifiers.Rmd/pve.methods.unsupervised.split.rda")</code></pre> <pre class="r"><code>load(file="../output/method-train-classifiers.Rmd/pve.methods.unsupervised.split.rda") c(mean(pve.split.nw), mean(pve.split.trend2), mean(pve.split.bspline), mean(pve.split.loess))</code></pre> <pre><code>[1] 0.09505480 0.06449484 0.08605530 0.14442381</code></pre> <pre class="r"><code>c(sd(pve.split.nw), sd(pve.split.trend2), sd(pve.split.bspline), sd(pve.split.loess))</code></pre> <pre><code>[1] 0.05840516 0.07380083 0.06332662 0.10388520</code></pre> <hr /> </div> <div id="correlation-between-predicted-times" class="section level2"> <h2>Correlation between predicted times</h2> <pre class="r"><code>source("../peco/R/cycle.corr.R") corrs_rank <- lapply(1:5, function(i) { data.frame(cbind( nw=rFLRank.IndTestRand(xy_time[[i]]$ref_time, xy_time[[i]]$pred_time_nw), trend2=rFLRank.IndTestRand(xy_time[[i]]$ref_time, xy_time[[i]]$pred_time_trend2), pc=rFLRank.IndTestRand(xy_time[[i]]$ref_time, xy_time[[i]]$pred_time_pc), nwunsup=rFLRank.IndTestRand(xy_time[[i]]$ref_time, xy_time_unsup[[i]]$pred_time_nw), trend2unsup=rFLRank.IndTestRand(xy_time[[i]]$ref_time, xy_time_unsup[[i]]$pred_time_trend2), bsplineunsup=rFLRank.IndTestRand(xy_time[[i]]$ref_time, xy_time_unsup[[i]]$pred_time_bspline), loessunsup=rFLRank.IndTestRand(xy_time[[i]]$ref_time, xy_time_unsup[[i]]$pred_time_loess), nw.trend2=rFLRank.IndTestRand(xy_time[[i]]$pred_time_nw, xy_time[[i]]$pred_time_trend2), nw.pc=rFLRank.IndTestRand(xy_time[[i]]$pred_time_nw, xy_time[[i]]$pred_time_pc), nw.nwunsup=rFLRank.IndTestRand(xy_time[[i]]$pred_time_nw, xy_time_unsup [[i]]$pred_time_nw), nw.trend2unsup=rFLRank.IndTestRand(xy_time[[i]]$pred_time_nw, xy_time_unsup [[i]]$pred_time_trend2), nw.bsplineunsup=rFLRank.IndTestRand(xy_time[[i]]$pred_time_nw, xy_time_unsup [[i]]$pred_time_bspline), nw.loessunsup=rFLRank.IndTestRand(xy_time[[i]]$pred_time_nw, xy_time_unsup [[i]]$pred_time_loess), trend2.pc=rFLRank.IndTestRand(xy_time[[i]]$pred_time_trend2, xy_time[[i]]$pred_time_pc), trend2.nwunsup=rFLRank.IndTestRand(xy_time[[i]]$pred_time_trend2, xy_time_unsup[[i]]$pred_time_nw), trend2.trend2unsup=rFLRank.IndTestRand(xy_time[[i]]$pred_time_trend2, xy_time_unsup[[i]]$pred_time_trend2), trend2.bsplineunsup=rFLRank.IndTestRand(xy_time[[i]]$pred_time_trend2, xy_time_unsup[[i]]$pred_time_bspline), trend2.loessunsup=rFLRank.IndTestRand(xy_time[[i]]$pred_time_trend2, xy_time_unsup[[i]]$pred_time_loess) )) }) saveRDS(corrs_rank, "../output/method-train-classifiers.Rmd/corrs_rank.rds")</code></pre> <hr /> </div> <div id="session-information" class="section level2"> <h2>Session information</h2> <pre class="r"><code>sessionInfo()</code></pre> <pre><code>R version 3.4.3 (2017-11-30) Platform: x86_64-pc-linux-gnu (64-bit) Running under: Scientific Linux 7.4 (Nitrogen) Matrix products: default BLAS/LAPACK: /software/openblas-0.2.19-el7-x86_64/lib/libopenblas_haswellp-r0.2.19.so locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 [7] LC_PAPER=en_US.UTF-8 LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] parallel stats graphics grDevices utils datasets methods [8] base other attached packages: [1] genlasso_1.3 igraph_1.1.2 Matrix_1.2-14 [4] MASS_7.3-50 circular_0.4-93 Biobase_2.38.0 [7] BiocGenerics_0.24.0 loaded via a namespace (and not attached): [1] Rcpp_0.12.17 lattice_0.20-35 mvtnorm_1.0-7 digest_0.6.15 [5] rprojroot_1.3-2 grid_3.4.3 backports_1.1.2 git2r_0.21.0 [9] magrittr_1.5 evaluate_0.10.1 stringi_1.1.6 boot_1.3-20 [13] rmarkdown_1.8 tools_3.4.3 stringr_1.2.0 yaml_2.1.16 [17] compiler_3.4.3 pkgconfig_2.0.1 htmltools_0.3.6 knitr_1.18 </code></pre> </div> <!-- Adjust MathJax settings so that all math formulae are shown using TeX fonts only; see http://docs.mathjax.org/en/latest/configuration.html. 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