Hendrik/xgboost
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Lint fix on infix operators

Browse Source
This commit is contained in:
terrytangyuan
2015-10-28 23:04:45 -04:00
parent d7fce99564
commit 8bae715994
12 changed files with 47 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
R-package/R/xgb.model.dt.tree.R
View File

@@ -86,7 +86,7 @@ xgb.model.dt.tree <- function(feature_names = NULL, filename_dump = NULL, model
text <- readLines(filename_dump) %>% str_trim(side = "both")
}
position <- str_match(text, "booster") %>% is.na %>% not %>% which %>% c(length(text)+1)
position <- str_match(text, "booster") %>% is.na %>% not %>% which %>% c(length(text) + 1)
extract <- function(x, pattern) str_extract(x, pattern) %>% str_split("=") %>% lapply(function(x) x[2] %>% as.numeric) %>% unlist
@@ -96,15 +96,15 @@ xgb.model.dt.tree <- function(feature_names = NULL, filename_dump = NULL, model
allTrees <- data.table()
anynumber_regex<-"[-+]?[0-9]*\\.?[0-9]+([eE][-+]?[0-9]+)?"
anynumber_regex <- "[-+]?[0-9]*\\.?[0-9]+([eE][-+]?[0-9]+)?"
for(i in 1:n_round){
tree <- text[(position[i]+1):(position[i+1]-1)]
tree <- text[(position[i] + 1):(position[i + 1] - 1)]
# avoid tree made of a leaf only (no split)
if(length(tree) <2) next
if(length(tree) < 2) next
treeID <- i-1
treeID <- i - 1
notLeaf <- str_match(tree, "leaf") %>% is.na
leaf <- notLeaf %>% not %>% tree[.]
@@ -128,7 +128,7 @@ xgb.model.dt.tree <- function(feature_names = NULL, filename_dump = NULL, model
qualityLeaf <- extract(leaf, paste0("leaf=",anynumber_regex))
coverBranch <- extract(branch, "cover=\\d*\\.*\\d*")
coverLeaf <- extract(leaf, "cover=\\d*\\.*\\d*")
dt <- data.table(ID = c(idBranch, idLeaf), Feature = c(featureBranch, featureLeaf), Split = c(splitBranch, splitLeaf), Yes = c(yesBranch, yesLeaf), No = c(noBranch, noLeaf), Missing = c(missingBranch, missingLeaf), Quality = c(qualityBranch, qualityLeaf), Cover = c(coverBranch, coverLeaf))[order(ID)][,Tree:=treeID]
dt <- data.table(ID = c(idBranch, idLeaf), Feature = c(featureBranch, featureLeaf), Split = c(splitBranch, splitLeaf), Yes = c(yesBranch, yesLeaf), No = c(noBranch, noLeaf), Missing = c(missingBranch, missingLeaf), Quality = c(qualityBranch, qualityLeaf), Cover = c(coverBranch, coverLeaf))[order(ID)][,Tree := treeID]
allTrees <- rbindlist(list(allTrees, dt), use.names = T, fill = F)
}