X-Git-Url: https://git.auder.net/?p=valse.git;a=blobdiff_plain;f=pkg%2FR%2Fmain.R;h=8649342b8d727ce79bdd00fe94c3753c6412485a;hp=387d55329652f5c13a583f4cd710a2cb7fc9c613;hb=0ba1b11c49d7b2a0cae493200793c1ba3fb8b8e7;hpb=4c4b3888e07594f0bacdd2b60ffc97aa61600643 diff --git a/pkg/R/main.R b/pkg/R/main.R index 387d553..8649342 100644 --- a/pkg/R/main.R +++ b/pkg/R/main.R @@ -1,4 +1,4 @@ -#' valse +#' valse #' #' Main function #' @@ -27,8 +27,8 @@ #' @examples #' #TODO: a few examples #' @export -valse <- function(X, Y, procedure = "LassoMLE", selecMod = "DDSE", gamma = 1, mini = 10, - maxi = 50, eps = 1e-04, kmin = 2, kmax = 3, rank.min = 1, rank.max = 5, ncores_outer = 1, +valse <- function(X, Y, procedure = "LassoMLE", selecMod = "DDSE", gamma = 1, mini = 10, + maxi = 50, eps = 1e-04, kmin = 2, kmax = 3, rank.min = 1, rank.max = 5, ncores_outer = 1, ncores_inner = 1, thresh = 1e-08, grid_lambda = numeric(0), size_coll_mod = 10, fast = TRUE, verbose = FALSE, plot = TRUE) { @@ -36,24 +36,24 @@ valse <- function(X, Y, procedure = "LassoMLE", selecMod = "DDSE", gamma = 1, mi p <- ncol(X) m <- ncol(Y) - if (verbose) + if (verbose) print("main loop: over all k and all lambda") if (ncores_outer > 1) { cl <- parallel::makeCluster(ncores_outer, outfile = "") - parallel::clusterExport(cl = cl, envir = environment(), varlist = c("X", - "Y", "procedure", "selecMod", "gamma", "mini", "maxi", "eps", "kmin", - "kmax", "rank.min", "rank.max", "ncores_outer", "ncores_inner", "thresh", + parallel::clusterExport(cl = cl, envir = environment(), varlist = c("X", + "Y", "procedure", "selecMod", "gamma", "mini", "maxi", "eps", "kmin", + "kmax", "rank.min", "rank.max", "ncores_outer", "ncores_inner", "thresh", "size_coll_mod", "verbose", "p", "m")) } # Compute models with k components computeModels <- function(k) { - if (ncores_outer > 1) + if (ncores_outer > 1) require("valse") #nodes start with an empty environment - if (verbose) + if (verbose) print(paste("Parameters initialization for k =", k)) # smallEM initializes parameters by k-means and regression model in each # component, doing this 20 times, and keeping the values maximizing the @@ -61,32 +61,32 @@ valse <- function(X, Y, procedure = "LassoMLE", selecMod = "DDSE", gamma = 1, mi P <- initSmallEM(k, X, Y, fast) if (length(grid_lambda) == 0) { - grid_lambda <- computeGridLambda(P$phiInit, P$rhoInit, P$piInit, P$gamInit, + grid_lambda <- computeGridLambda(P$phiInit, P$rhoInit, P$piInit, P$gamInit, X, Y, gamma, mini, maxi, eps, fast) } - if (length(grid_lambda) > size_coll_mod) + if (length(grid_lambda) > size_coll_mod) grid_lambda <- grid_lambda[seq(1, length(grid_lambda), length.out = size_coll_mod)] - if (verbose) + if (verbose) print("Compute relevant parameters") # select variables according to each regularization parameter from the grid: # S$selected corresponding to selected variables - S <- selectVariables(P$phiInit, P$rhoInit, P$piInit, P$gamInit, mini, maxi, + S <- selectVariables(P$phiInit, P$rhoInit, P$piInit, P$gamInit, mini, maxi, gamma, grid_lambda, X, Y, thresh, eps, ncores_inner, fast) if (procedure == "LassoMLE") { - if (verbose) + if (verbose) print("run the procedure Lasso-MLE") # compute parameter estimations, with the Maximum Likelihood Estimator, # restricted on selected variables. - models <- constructionModelesLassoMLE(P$phiInit, P$rhoInit, P$piInit, + models <- constructionModelesLassoMLE(P$phiInit, P$rhoInit, P$piInit, P$gamInit, mini, maxi, gamma, X, Y, eps, S, ncores_inner, fast, verbose) } else { - if (verbose) + if (verbose) print("run the procedure Lasso-Rank") # compute parameter estimations, with the Low Rank Estimator, restricted on # selected variables. - models <- constructionModelesLassoRank(S, k, mini, maxi, X, Y, eps, rank.min, + models <- constructionModelesLassoRank(S, k, mini, maxi, X, Y, eps, rank.min, rank.max, ncores_inner, fast, verbose) } # warning! Some models are NULL after running selectVariables @@ -101,7 +101,7 @@ valse <- function(X, Y, procedure = "LassoMLE", selecMod = "DDSE", gamma = 1, mi } else { lapply(kmin:kmax, computeModels) } - if (ncores_outer > 1) + if (ncores_outer > 1) parallel::stopCluster(cl) if (!requireNamespace("capushe", quietly = TRUE)) @@ -117,9 +117,9 @@ valse <- function(X, Y, procedure = "LassoMLE", selecMod = "DDSE", gamma = 1, mi # For a collection of models (same k, several lambda): LLH <- sapply(models, function(model) model$llh[1]) k <- length(models[[1]]$pi) - sumPen <- sapply(models, function(model) k * (dim(model$rho)[1] + sum(model$phi[, + sumPen <- sapply(models, function(model) k * (dim(model$rho)[1] + sum(model$phi[, , 1] != 0) + 1) - 1) - data.frame(model = paste(i, ".", seq_along(models), sep = ""), pen = sumPen/n, + data.frame(model = paste(i, ".", seq_along(models), sep = ""), pen = sumPen/n, complexity = sumPen, contrast = -LLH) })) tableauRecap <- tableauRecap[which(tableauRecap[, 4] != Inf), ] @@ -127,16 +127,16 @@ valse <- function(X, Y, procedure = "LassoMLE", selecMod = "DDSE", gamma = 1, mi if (verbose == TRUE) print(tableauRecap) modSel <- capushe::capushe(tableauRecap, n) - indModSel <- if (selecMod == "DDSE") + indModSel <- if (selecMod == "DDSE") { as.numeric(modSel@DDSE@model) - } else if (selecMod == "Djump") + } else if (selecMod == "Djump") { as.numeric(modSel@Djump@model) - } else if (selecMod == "BIC") + } else if (selecMod == "BIC") { modSel@BIC_capushe$model - } else if (selecMod == "AIC") + } else if (selecMod == "AIC") { modSel@AIC_capushe$model }