@@ -62,11 +62,11 @@ cb.print.evaluation <- function(period = 1, showsd = TRUE) {
|
||||
callback <- function(env = parent.frame()) {
|
||||
if (length(env$bst_evaluation) == 0 ||
|
||||
period == 0 ||
|
||||
NVL(env$rank, 0) != 0 )
|
||||
NVL(env$rank, 0) != 0)
|
||||
return()
|
||||
|
||||
i <- env$iteration
|
||||
if ((i-1) %% period == 0 ||
|
||||
if ((i - 1) %% period == 0 ||
|
||||
i == env$begin_iteration ||
|
||||
i == env$end_iteration) {
|
||||
stdev <- if (showsd) env$bst_evaluation_err else NULL
|
||||
@@ -115,7 +115,7 @@ cb.evaluation.log <- function() {
|
||||
stop("bst_evaluation must have non-empty names")
|
||||
|
||||
mnames <<- gsub('-', '_', names(env$bst_evaluation))
|
||||
if(!is.null(env$bst_evaluation_err))
|
||||
if (!is.null(env$bst_evaluation_err))
|
||||
mnames <<- c(paste0(mnames, '_mean'), paste0(mnames, '_std'))
|
||||
}
|
||||
|
||||
@@ -123,12 +123,12 @@ cb.evaluation.log <- function() {
|
||||
env$evaluation_log <- as.data.table(t(simplify2array(env$evaluation_log)))
|
||||
setnames(env$evaluation_log, c('iter', mnames))
|
||||
|
||||
if(!is.null(env$bst_evaluation_err)) {
|
||||
if (!is.null(env$bst_evaluation_err)) {
|
||||
# rearrange col order from _mean,_mean,...,_std,_std,...
|
||||
# to be _mean,_std,_mean,_std,...
|
||||
len <- length(mnames)
|
||||
means <- mnames[seq_len(len/2)]
|
||||
stds <- mnames[(len/2 + 1):len]
|
||||
means <- mnames[seq_len(len / 2)]
|
||||
stds <- mnames[(len / 2 + 1):len]
|
||||
cnames <- numeric(len)
|
||||
cnames[c(TRUE, FALSE)] <- means
|
||||
cnames[c(FALSE, TRUE)] <- stds
|
||||
@@ -144,7 +144,7 @@ cb.evaluation.log <- function() {
|
||||
return(finalizer(env))
|
||||
|
||||
ev <- env$bst_evaluation
|
||||
if(!is.null(env$bst_evaluation_err))
|
||||
if (!is.null(env$bst_evaluation_err))
|
||||
ev <- c(ev, env$bst_evaluation_err)
|
||||
env$evaluation_log <- c(env$evaluation_log,
|
||||
list(c(iter = env$iteration, ev)))
|
||||
@@ -351,13 +351,13 @@ cb.early.stop <- function(stopping_rounds, maximize = FALSE,
|
||||
|
||||
finalizer <- function(env) {
|
||||
if (!is.null(env$bst)) {
|
||||
attr_best_score = as.numeric(xgb.attr(env$bst$handle, 'best_score'))
|
||||
attr_best_score <- as.numeric(xgb.attr(env$bst$handle, 'best_score'))
|
||||
if (best_score != attr_best_score)
|
||||
stop("Inconsistent 'best_score' values between the closure state: ", best_score,
|
||||
" and the xgb.attr: ", attr_best_score)
|
||||
env$bst$best_iteration = best_iteration
|
||||
env$bst$best_ntreelimit = best_ntreelimit
|
||||
env$bst$best_score = best_score
|
||||
env$bst$best_iteration <- best_iteration
|
||||
env$bst$best_ntreelimit <- best_ntreelimit
|
||||
env$bst$best_score <- best_score
|
||||
} else {
|
||||
env$basket$best_iteration <- best_iteration
|
||||
env$basket$best_ntreelimit <- best_ntreelimit
|
||||
@@ -372,9 +372,9 @@ cb.early.stop <- function(stopping_rounds, maximize = FALSE,
|
||||
return(finalizer(env))
|
||||
|
||||
i <- env$iteration
|
||||
score = env$bst_evaluation[metric_idx]
|
||||
score <- env$bst_evaluation[metric_idx]
|
||||
|
||||
if (( maximize && score > best_score) ||
|
||||
if ((maximize && score > best_score) ||
|
||||
(!maximize && score < best_score)) {
|
||||
|
||||
best_msg <<- format.eval.string(i, env$bst_evaluation, env$bst_evaluation_err)
|
||||
@@ -500,7 +500,7 @@ cb.cv.predict <- function(save_models = FALSE) {
|
||||
for (fd in env$bst_folds) {
|
||||
pr <- predict(fd$bst, fd$watchlist[[2]], ntreelimit = ntreelimit, reshape = TRUE)
|
||||
if (is.matrix(pred)) {
|
||||
pred[fd$index,] <- pr
|
||||
pred[fd$index, ] <- pr
|
||||
} else {
|
||||
pred[fd$index] <- pr
|
||||
}
|
||||
@@ -613,9 +613,7 @@ cb.gblinear.history <- function(sparse=FALSE) {
|
||||
|
||||
init <- function(env) {
|
||||
if (!is.null(env$bst)) { # xgb.train:
|
||||
coef_path <- list()
|
||||
} else if (!is.null(env$bst_folds)) { # xgb.cv:
|
||||
coef_path <- rep(list(), length(env$bst_folds))
|
||||
} else stop("Parent frame has neither 'bst' nor 'bst_folds'")
|
||||
}
|
||||
|
||||
@@ -705,11 +703,11 @@ xgb.gblinear.history <- function(model, class_index = NULL) {
|
||||
if (!is_cv) {
|
||||
# extract num_class & num_feat from the internal model
|
||||
dmp <- xgb.dump(model)
|
||||
if(length(dmp) < 2 || dmp[2] != "bias:")
|
||||
if (length(dmp) < 2 || dmp[2] != "bias:")
|
||||
stop("It does not appear to be a gblinear model")
|
||||
dmp <- dmp[-c(1,2)]
|
||||
dmp <- dmp[-c(1, 2)]
|
||||
n <- which(dmp == 'weight:')
|
||||
if(length(n) != 1)
|
||||
if (length(n) != 1)
|
||||
stop("It does not appear to be a gblinear model")
|
||||
num_class <- n - 1
|
||||
num_feat <- (length(dmp) - 4) / num_class
|
||||
@@ -732,9 +730,9 @@ xgb.gblinear.history <- function(model, class_index = NULL) {
|
||||
if (!is.null(class_index) && num_class > 1) {
|
||||
coef_path <- if (is.list(coef_path)) {
|
||||
lapply(coef_path,
|
||||
function(x) x[, seq(1 + class_index, by=num_class, length.out=num_feat)])
|
||||
function(x) x[, seq(1 + class_index, by = num_class, length.out = num_feat)])
|
||||
} else {
|
||||
coef_path <- coef_path[, seq(1 + class_index, by=num_class, length.out=num_feat)]
|
||||
coef_path <- coef_path[, seq(1 + class_index, by = num_class, length.out = num_feat)]
|
||||
}
|
||||
}
|
||||
coef_path
|
||||
|
||||
Reference in New Issue
Block a user