samashi47 / em-algorithm Goto Github PK
View Code? Open in Web Editor NEWExpectation–Maximization (EM) algorithm implementation in R and Python, and a comparison with K-means.
em-algorithm's People
Contributors
Stargazers
Watchers
em-algorithm's Issues
bug: NaN values in test with mall customers dataset
NA values in test with mall customers dataset
Expected Behavior
Iterate until it converges or arrives at maxit, then print the results.
Current Behavior
It iterates a number of iteration (maybe 10) and params values become NaN, then it stops and prints:
Error in if (min(abs(paramsOld - paramsCurrent)) < tol) { :
missing value where TRUE/FALSE needed
With some printing statements to debug:
Iterations of EM:
[1] 0.00 0.10 0.35 0.65 0.90
[1] 1.406076e+03 5.441687e-02 1.844696e-01 3.286551e-01 4.324584e-01
Iteration - 1...
[1] 1.406076e+03 5.441687e-02 1.844696e-01 3.286551e-01 4.324584e-01
[1] 1.406007e+03 5.449429e-02 1.844855e-01 3.285626e-01 4.324577e-01
[1] 1.406007e+03 5.449429e-02 1.844855e-01 3.285626e-01 4.324577e-01
[1] 1.405878e+03 5.464702e-02 1.845239e-01 3.283898e-01 4.324393e-01
[1] 1.405878e+03 5.464702e-02 1.845239e-01 3.283898e-01 4.324393e-01
[1] 1.405614e+03 5.496482e-02 1.846160e-01 3.280472e-01 4.323719e-01
[1] 1.405614e+03 5.496482e-02 1.846160e-01 3.280472e-01 4.323719e-01
[1] 1.405040e+03 5.567459e-02 1.848507e-01 3.273132e-01 4.321615e-01
Iteration - 5...
[1] 1.405040e+03 5.567459e-02 1.848507e-01 3.273132e-01 4.321615e-01
[1] 1.403752e+03 5.732103e-02 1.854629e-01 3.256718e-01 4.315442e-01
[1] 1.403752e+03 5.732103e-02 1.854629e-01 3.256718e-01 4.315442e-01
[1] 1.400936e+03 6.107273e-02 1.870133e-01 3.220353e-01 4.298786e-01
[1] 1.400936e+03 6.107273e-02 1.870133e-01 3.220353e-01 4.298786e-01
[1] 1.395328e+03 6.879273e-02 1.905219e-01 3.145853e-01 4.261001e-01
[1] 1.395328e+03 6.879273e-02 1.905219e-01 3.145853e-01 4.261001e-01
[1] 1.385599e+03 8.201161e-02 1.967473e-01 3.015865e-01 4.196546e-01
[1] 1.385599e+03 8.201161e-02 1.967473e-01 3.015865e-01 4.196546e-01
[1] 1369.5543130 0.1023314 0.2033040 0.2829653 0.4113993
Iteration - 10...
[1] 1369.5543130 0.1023314 0.2033040 0.2829653 0.4113993
[1] 1319.6236650 0.1487267 0.1961885 0.2554316 0.3996531
[1] 1319.6236650 0.1487267 0.1961885 0.2554316 0.3996531
[1] -7056.5065741 0.3041669 0.1403421 0.1932749 0.3622161
[1] -7056.5065741 0.3041669 0.1403421 0.1932749 0.3622161
[1] NaN 0.56000000 0.13097109 0.09977132 0.20925759
Error in if (min(abs(paramsOld - paramsCurrent)) < tol) { :
missing value where TRUE/FALSE needed
if you ignore the NaNvalues, then it finishes until maxit, and all result values will be NaN.
Possible Solution
Better NaN values handling, or better initial values if thats what generated the bug.
Steps to Reproduce
- Run the implementation chunk
- Run the Mall customers import chunk
- Run the last test chunk
Log file
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.