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What columns should use in order to train Random Forest?

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0

Background

I am new in machine learning. I want to train model by using Random Forest algorithm. I have database which includes total 9 columns, in which 8 are independent variables and last (9th) variable 'Class' is dependent variable. Dependent variable is predictor variable which contains 3 categories i.e. - S, N, R. All independent variables (except 2) contain more categories than 53. Code shows error when categories become more than 53. I want to train the model in order to identify whether the database line is Suspicious (S), Normal (N), Robot (R). Column numbers 4 and 7 contain more than 19k categories/levels. These are the important columns because they contain attack entries/features etc. How to derive other variables from them becomes complicated.

Code

library('ROCR')
library('randomForest')
library('caret')
library('ranger')

database<-read.csv('data1.csv')
set.seed(1000)
train<-sample(1:310341,217239,replace = FALSE)
traindata<-database[train,]
testdata<-database[-train,]
# fit <- train(database$Class ~ ., data = traindata, method = "ranger")
fit<-randomForest(Class~.,data = traindata, ntree=500, importance= TRUE, proximity = TRUE, na.action = na.roughfix)

Efforts taken

I have tried above code, but due to 4th, and 7th column, it shows error of "more than 53 columns can not be used".

Any help would be appreciated to resolve this issue...

r random-forest

share|improve this question

edited Mar 26 at 18:22

DSD

asked Mar 25 at 11:06

DSDDSD

122 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Possible duplicate of R - Random Forest and more than 53 categories
  
  – divibisan
  Apr 2 at 17:49
  

  
  
  
  

add a comment | 

0

Background

I am new in machine learning. I want to train model by using Random Forest algorithm. I have database which includes total 9 columns, in which 8 are independent variables and last (9th) variable 'Class' is dependent variable. Dependent variable is predictor variable which contains 3 categories i.e. - S, N, R. All independent variables (except 2) contain more categories than 53. Code shows error when categories become more than 53. I want to train the model in order to identify whether the database line is Suspicious (S), Normal (N), Robot (R). Column numbers 4 and 7 contain more than 19k categories/levels. These are the important columns because they contain attack entries/features etc. How to derive other variables from them becomes complicated.

Code

library('ROCR')
library('randomForest')
library('caret')
library('ranger')

database<-read.csv('data1.csv')
set.seed(1000)
train<-sample(1:310341,217239,replace = FALSE)
traindata<-database[train,]
testdata<-database[-train,]
# fit <- train(database$Class ~ ., data = traindata, method = "ranger")
fit<-randomForest(Class~.,data = traindata, ntree=500, importance= TRUE, proximity = TRUE, na.action = na.roughfix)

Efforts taken

I have tried above code, but due to 4th, and 7th column, it shows error of "more than 53 columns can not be used".

Any help would be appreciated to resolve this issue...

r random-forest

share|improve this question

edited Mar 26 at 18:22

DSD

asked Mar 25 at 11:06

DSDDSD

122 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Possible duplicate of R - Random Forest and more than 53 categories
  
  – divibisan
  Apr 2 at 17:49
  

  
  
  
  

add a comment | 

Background

I am new in machine learning. I want to train model by using Random Forest algorithm. I have database which includes total 9 columns, in which 8 are independent variables and last (9th) variable 'Class' is dependent variable. Dependent variable is predictor variable which contains 3 categories i.e. - S, N, R. All independent variables (except 2) contain more categories than 53. Code shows error when categories become more than 53. I want to train the model in order to identify whether the database line is Suspicious (S), Normal (N), Robot (R). Column numbers 4 and 7 contain more than 19k categories/levels. These are the important columns because they contain attack entries/features etc. How to derive other variables from them becomes complicated.

Code

library('ROCR')
library('randomForest')
library('caret')
library('ranger')

database<-read.csv('data1.csv')
set.seed(1000)
train<-sample(1:310341,217239,replace = FALSE)
traindata<-database[train,]
testdata<-database[-train,]
# fit <- train(database$Class ~ ., data = traindata, method = "ranger")
fit<-randomForest(Class~.,data = traindata, ntree=500, importance= TRUE, proximity = TRUE, na.action = na.roughfix)

Efforts taken

I have tried above code, but due to 4th, and 7th column, it shows error of "more than 53 columns can not be used".

Any help would be appreciated to resolve this issue...

r random-forest

share|improve this question

edited Mar 26 at 18:22

DSD

asked Mar 25 at 11:06

DSDDSD

122 bronze badges

library('ROCR')
library('randomForest')
library('caret')
library('ranger')

database<-read.csv('data1.csv')
set.seed(1000)
train<-sample(1:310341,217239,replace = FALSE)
traindata<-database[train,]
testdata<-database[-train,]
# fit <- train(database$Class ~ ., data = traindata, method = "ranger")
fit<-randomForest(Class~.,data = traindata, ntree=500, importance= TRUE, proximity = TRUE, na.action = na.roughfix)

share|improve this question

edited Mar 26 at 18:22

DSD

asked Mar 25 at 11:06

DSDDSD

122 bronze badges

share|improve this question

edited Mar 26 at 18:22

DSD

asked Mar 25 at 11:06

DSDDSD

122 bronze badges

asked Mar 25 at 11:06

DSDDSD

122 bronze badges

asked Mar 25 at 11:06

DSDDSD

122 bronze badges