Farideh Bagherzadeh Khiabani

8 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 10,014 10 View

What is the best way to deploy a pmml data mining model?

I have developed an R clinical model and converted it to pmml. How can I make it available to the the physicians for practical use?

14 June 2015 2,922 3 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 2,221 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 5,666 7 View

Help on interpreting plots after implementing logistic regression?

I implemented a logistic regression in R and got the following plot. Can anybody help me interpret it or introduce me to some good resources which can assist me?

07 January 2014 9,676 6 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 10,067 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 9,248 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 4,286 26 View