************************************ * Known bugs in LEMWIN and LEM 1.0 * ************************************ 1. Folder names: - LEMWIN cannot deal with directory/folder names containing a space like "c:\program files\lemwin". It will not be able to find relevant files. - Solution: install the program in, for example, "c:\lemwin". 2. Working directory/folder: - There are sometimes problems in finding directory/folder with the data files. You get a strange error message. - Solution: save the input file in the directory/folder with the data file. 3. After 9999 iteration: - Output to screen is not correct after 9999 iteration. Also the ProgressBar disappears. - Solution: set log off. 4. File names: - An error message is given if you use a command as file name: for example, "wla latprob.txt". Note that "lat" is a command. - Solution: don't use such names. 5. Computation of standard errors: - A runtime error occurs in models with in between 150 and 180 parameters. The program should not give standard errors with more than 150 parameters. - Solution: suppress standard errors with command "nse". 6. Statistics: - Dissimilarity index may be incorrect in large tables. - Degrees of freedom and p value may be incorrect in extremely large tables. - Solution: no. 7. Command lin(): - A runtime error occurs when lin() is used in all {}. - Solution: no. 8. RC(M) models: - Singular value is not performed in RC(M) models. - Solution: write fitted table to a file and estimate an association model with the cor() option using the fitted table as data. 9. RC models: - There may be problems with equality constraints across groups in model types c, d, en e. - Solution: no. 10. Event history analysis with a discrete-time logit model (command "dis"): - Problems occur when observation have t0 = t1. - Problems occur when observed survival times are larger than upper limit of the last time category. - Degrees of freedom are not correct. - Does not work correctly with multivariate hazards (command "mult"). - Solution: no. 11. Command eq1: - Does not work with cumulative link functions; that is, command "cum()". - Solution: specify constraints across submodels via all {}. 12. Command wma: - Runtime error 217 is reported with very large tables. - Solution: no. 13. Continuous covariates: - Problems occur when continuous covariates are used in all {}. - Solution: no. 14. DOS version LEM.EXE: - Because of an error in the Borland Pascal compiler, the DOS version doesn't run on newer computers (runtime error 200). - Solution: search on the internet for tppatch.zip, a program that fixes the problem with LEM.EXE.