Farideh Bagherzadeh Khiabani

6 Questions 9 Answers 0 Followers

Questions related from Farideh Bagherzadeh Khiabani

Is there any way to produce the same random numbers in R when using Linux or Windows?

I'm getting slightly different random numbers depending on the OS (Windows vs Linux) although I have specified the seed using set.seed. Is there anyway to guarantee reproducibility across...

13 March 2018 9,925 10 View

Do you know how Wald statistics are calculated for categorical data in a logistic regression based on the wald test in SPSS?

Dear all, as an example the output of a logistic regression based on wald test is provided. For instance, for scenario(1), (Beta)^2/(Standard Error)^2 = (0.551)^2/(0.362)^2=2.3167=2.32 ...

25 April 2015 2,122 8 View

How should we handle the missing values in test data?

I partitioned my data into train and test sets. I did outlier detection and missing value imputation in my training set. Then, I built a model on this set. I am not sure what I should do about...

01 February 2014 5,604 7 View

How can I import the "Word Net Dictionary" using the "Open Word Net Dictionary" Operator in Rapidminer?

I am working on text mining in Rapid miner. I need to use the Word Net Dictionary. I installed the extension, and I downloaded the dictionary itself. But I don't know how to set parameters of...

26 November 2013 9,991 5 View

Does anybody have any recommended packages or commands to create a Random Forest using C4.5 (based on information gain in R)?

In the package randomForest of R, CARTs (based on gini) are used to create the forest. I need to use C4.5 (based on gain). Any recommendations for packages or commands?

11 November 2013 9,158 4 View

I need a good way to reduce dimension of my data?

I have a data set of 500 records and 90 attributes. What are good ways to reduce the dimension without losing much information? I don't want to do something like PCA, because the interpretation...

05 September 2013 4,220 26 View