protect(): protection stack overflow

Windows-specific ( not work for UNIX-like systems )

memory.limit(size=8000000)

Unix-like system

http://r.789695.n4.nabble.com/R-3-5-0-vector-memory-exhausted-error-on-readBin-td4750237.html

set the $R_MAX_VSIZE environmental variable prior to running RStudio 

https://stat.ethz.ch/R-manual/R-devel/library/base/html/Memory.html

Additionally, ‘–max-ppsize’ controls the maximum size of the protection stack

https://stackoverflow.com/questions/32826906/how-to-solve-protection-stack-overflow-issue-in-r-studio

via your .Rprofileor at runtime by using the options(expressions = 5e5) command.

options(expressions = 5e5)

For UNIX or Linux systems, we will want to set the $R_MAX_VSIZE environmental variable prior to running RStudio or R from the cli. See the following thread for more info on solving this problem:

https://www.researchgate.net/post/error_protect_protection_stack_overflow_in_R‘

> dd %>% dim
[1]    12 39319

to change the data from data.frame to matrix form.

==========================================================

You probably have to set –max-ppsize See http://stat.ethz.ch/R-manual/R-devel/library/base/html/Memory.html You’ll also find some discussions about this on StackOverflow. See http://stackoverflow.com/questions/28728774/how-to-set-max-ppsize-in-r for instance   ================================ ‘memory.limit’ function recommended by Maurizio may work for some users, but it is Windows-specific, and thus will not work for UNIX-like systems. For UNIX or Linux systems, we will want to set the $R_MAX_VSIZE environmental variable prior to running RStudio or R from the cli. See the following thread for more info on solving this problem:   http://r.789695.n4.nabble.com/R-3-5-0-vector-memory-exhausted-error-on-readBin-td4750237.html   Another option to for UNIX/Linux users to try when they get the protect error is the ‘options’ expressions setting, e.g.:   options(expressions = 5e5)   as recommended at the following URL:   https://stackoverflow.com/questions/32826906/how-to-solve-protection-stack-overflow-issue-in-r-studio   Additionally, ‘–max-ppsize’ controls the maximum size of the protection stack, as per the Memory entry in the manual, at the following URL:   https://stat.ethz.ch/R-manual/R-devel/library/base/html/Memory.html   ==================================================================================  

ranger(formula = NULL, data = NULL, num.trees = 500, mtry = NULL,
  importance = "none", write.forest = TRUE, probability = FALSE,
  min.node.size = NULL, replace = TRUE, sample.fraction = ifelse(replace,
  1, 0.632), case.weights = NULL, class.weights = NULL, splitrule = NULL,
  num.random.splits = 1, alpha = 0.5, minprop = 0.1,
  split.select.weights = NULL, always.split.variables = NULL,
  respect.unordered.factors = NULL, scale.permutation.importance = FALSE,
  keep.inbag = FALSE, holdout = FALSE, quantreg = FALSE,
  num.threads = NULL, save.memory = FALSE, verbose = TRUE, seed = NULL,
  dependent.variable.name = NULL, status.variable.name = NULL,
  classification = NULL)

Arguments

Coercion of matrix to sparse matrix (dgCMatrix) and maintaining dimnames.

http://gallery.rcpp.org/articles/sparse-matrix-coercion/

https://github.com/imbs-hl/ranger/issues/135

library(ranger)
library(Matrix)
iris_sparse <- Matrix(data.matrix(iris), sparse = TRUE)
ranger(data = iris_sparse, dependent.variable.name = "Species", classification = TRUE)