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Questions tagged [fselector]

FSelector is an R package that finds the most informative attributes in a data set with respect to a classification target.

FSelector is an R package that provides functions for selecting attributes from a given dataset. Attribute subset selection is the process of identifying and removing as much of the irrelevant and redundant information as possible. More information on the package's CRAN page.

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Feature selection in document-feature matrix by using chi-squared test

I am doing texting mining using natural language processing. I used quanteda package to generate a document-feature matrix (dfm). Now I want to do feature selection using a chi-square test. I know there were already a lot of people asked this…
Chih-Ching Yeh
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Error: protect(): protection stack overflow while feature extraction

I have a dataframe that has 4755 rows and 27199 columns. It's actually a document term matrix and I'm trying to perform feature selection using the "FSelector" package. Here is some of the code below: library(FSelector) weights <-…
anonymous
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A duplicate bin range was detected. Try increasing the bin range precision

A little help wit this error ? I get it when i am running CFS in R Runnin code: best_features<- cfs(Target~.,df) where df is the dataset and Target and best_features are self explanatory. Error: Error in .jcall("weka/filters/Filter",…
Kushagra Kukreja
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Chi-squared feature selection using Fselector in R

I am a beginner in R and I have a data frame that has binary values in it. In my data frame, the first 6000 columns are the attributes I am going to select features from, and the last 10 columns (again binary) are the classes I need to train my data…
Diana01
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Invalid prediction for "rpart" object Error

I am using the exact code for best first search from page 4 of this CRAN document (https://cran.r-project.org/web/packages/FSelector/FSelector.pdf), which uses the iris dataset. It works just fine on the iris dataset, but does not work on my ow…
Ashley A Holmes
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Use of formula in information.gain in R

In the function definition for the FSelector information.gain function, information.gain(formula, data) what exactly is the purpose of the formula? I'm trying to use the function to do feature selection for a classification task. In the few examples…
Anusha Balakrishnan
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Install FSelector in R Notebook Databricks

I'm trying to install the package FSelector in my R notebook in databricks and it's not working. I've already tried following this How should I deal with "package 'xxx' is not available (for R version x.y.z)" warning? blogpost but nothing…
user228812
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R library(FSelector) failed to run due to java error

I have been trying to get FSelector from MLR package working recently, but have been running into the same java issue on my mac: Error: package or namespace load failed for ‘FSelector’: .onLoad failed in loadNamespace() for 'rJava', details: …
lydias
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Error after deleting NA values twice, first by using pandas library second by R

First I deleted NA values using the following Python code: import pandas as pd a = pd.read_csv("true.csv",low_memory=False) #print a b = pd.read_csv("false.csv",low_memory=False) merged = a.append(b,…
Mohit Khandelwal
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How to do feature selection on SparseMatrix matrix in R

I have text classification problem with over 20k features, 3m objects, and over 3k classes. Data is very sparse. I wrote the program on R. Data matrix in sparseMatrix object. How can I select features on this data? I found package FSelector, but it…
Osm
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Unable to use FSelector package in R on mac OS X El Capitan

I'm using OS X El Capitan Version 10.11.3 now. When I tried to use library(FSelector) in R, errors pop out saying: JavaVM: requested Java version ((null)) not available. Using Java at "" instead. JavaVM: Failed to load JVM:…
Yan
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Error about loading the ‘FSelector’ package

what does the below error mean? Error: package or namespace load failed for ‘FSelector’: .onLoad failed in loadNamespace() for 'RWeka', details: call: new_Weka_package_manager() error: java.lang.UnsupportedClassVersionError:…
somayeh A
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Install R package - FSELCETOR on SUSElinux server

I have an account to Suse linux server, without root access. I have installed an R , and now I want to use FSELECTOR package. I have started with this steps: $ whereis java java: /usr/bin/java /usr/lib64/java /etc/java /usr/share/java…
Gábor Kőrösi
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Unable to run information.gain

I am trying to run information.gain on 15 million data .The code I have used: library(FSelector) weights <- information.gain(is_opened~.,df) but I am getting this error. Error in .jnew("java/lang/String", k) : java.lang.OutOfMemoryError: GC…
Prajna
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How to select only the best features by setting up the threshold using FSelector information gain in R language?

I have done information gain feature selection in R by using FSelector package in R install.packages("RWekajars") install.packages("FSelector") library(FSelector) weights <- information.gain(Classname~., df) Attributes …
Lin
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