Irshad Samdani Mujawar

10 Questions 10 Answers 0 Followers

Questions related from Irshad Samdani Mujawar

Can number of people at risk (Ni) at time ti is allowed to increase during study in survival analysis?

Hello everyone, I have a question regarding empirical survival function (Kaplan-Meier). All the examples I have seen so far, I have seen that N0 at time 0 is the maximum. S(ti) = ((Ni - di)/Ni)...

06 June 2017 3,081 3 View

How predictive analytics is being used in revolutionizing education?

Hello everyone,I would like to know that that how predictive analytics is one of the most trending tech in education to change the education? Is there any good article/paper available , describing...

07 July 2016 1,214 0 View

How to determine the position of the nodes in the Khan academy knowledge map?

Hello,I was going through knowledge map built by Khan Academy. Here is the link : https://www.khanacademy.org/exercisedashboard . I was wondering how would they have calculated the coordinates for...

12 December 2015 2,478 0 View

What are the tools and packages/softwares available for estimating probabilistic knowledge structure?

Hello,I am currently using "pks" -an R package for fitting the basic local independent model(BLIM) for given knowledge structure. Does anyone know any other package/ software except "kst" and...

10 October 2015 1,116 0 View

Debugging a c++ compiled code used in R functions?

Hello Everyone,I need to debug few c++ functions used inside an R package to see what parameter are taking what values. The package name is "mirtCAT". I am not able to do it in R studio. Is...

09 September 2015 4,296 1 View

Is there any converter which converts R code to C# code?

Hello everyone,I need to convert few functions from R code to C# code, Is anyone aware of such converter? If not is there any simplest way to write the R codes in C#?P.S. R.net I already know. I...

05 May 2015 1,463 1 View

An alternative for scatter plot?

Are there any other ways than scatter plot to visually represent the relationship between x and y?Thanking you,Irshad

12 December 2014 4,559 5 View

Multidimensional IRT commercial software

Hello everyone,Are there any commercial software available for multidimensional adaptive testing (which include calibration of items, ability estimation and next item selection procedures) ? If...

09 September 2014 3,340 4 View

Are there any other methods (other than imputation) to calculate the item fit analysis in the presence of sparse data?

I am using mirt (an R-package) for the IRT( Item Response Theory) analysis. Current data, I am dealing with is sparse (contains missing value). Responses are missing because the test is adaptive....

09 September 2014 1,353 3 View

Is there any harm treating binary data as percentage data by grouping it?

Hello, I am working on a regression problem where I have to estimate the percentage of acceptance of an offer. Although my dependent variable is categorical one. ( I tired to fit the logistic but...

01 January 1970 4,147 4 View