| Converted to machine-readable form by Brian Frasca (6/13/94).
|           General Description of Thyroid Disease Databases 
|                         and Related Files
| 
| This directory contains 6 databases, corresponding test set, and 
| corresponding documentation.  They were left at the University of
| California at Irvine by Ross Quinlan during his visit in 1987 for
| the 1987 Machine Learning Workshop.  
| 
| The documentation files (with file extension "names") are formatted to
| be read by Quinlan's C4 decision tree program.  Though briefer than
| the other documentation files found in this database repository, they
| should suffice to describe the database, specifically:
| 
|     1. Source
|     2. Number and names of attributes (including class names)
|     3. Types of values that each attribute takes
| 
| In general, these databases are quite similar and can be characterized
| somewhat as follows:
| 
|     1. Many attributes (29 or so, mostly the same set over all the databases)
|     2. mostly numeric or Boolean valued attributes
|     3. thyroid disease domains (records provided by the Garavan Institute
|        of Sydney, Australia)
|     4. several missing attribute values (signified by "?")
|     5. small number of classes (under 10, changes with each database)
|     7. 2800 instances in each data set
|     8. 972 instances in each test set (It seems that the test sets' instances
|        are disjoint with respect to the corresponding data sets, but this has 
|        not been verified)
| 
| See the following for a discussion of relevant experiments and related work:
|    Quinlan,J.R., Compton,P.J., Horn,K.A., & Lazurus,L. (1986).
|    Inductive knowledge acquisition: A case study.
|    In Proceedings of the Second Australian Conference on Applications
|    of Expert Systems.  Sydney, Australia.
| 
|    Quinlan,J.R. (1986). Induction of decision trees. Machine Learning,
|    1, 81--106.
| 
| Note that the instances in these databases are followed by a vertical
| bar and a number.  These appear to be a patient id number.  The vertical
| bar is interepreted by Quinlan's algorithms as "ignore the remainder of
| this line". 
| 
| ======================================================================
| This database now also contains an additional two data files, named 
| hypothyroid.data and sick-euthyroid.data.  They have approximately the
| same data format and set of attributes as the other 6 databases, but
| their integrity is questionable.  Ross Quinlan is concerned that they
| may have been corrupted since they first arrived at UCI, but we have not
| yet established the validity of this possibility.  These 2 databases differ
| in terms of their number of instances (3163) and lack of corresponding 
| test files.  They each have 2 concepts (negative/hypothyroid and 
| sick-euthyroid/negative respectively).  Their source also appears to
| be the Garavan institute.  Each contains several missing values.
| 
| Another relatively recent file thyroid0387.data has been added that 
| contains the latest version of an archive of thyroid diagnoses obtained 
| from the Garvan Institute, consisting of 9172 records from 1984 to early 1987.
| 
| A domain theory related to thyroid desease has also been added recently 
| (thyroid.theory).
| 
| The files new-thyroid.[names,data] were donated by Stefan Aberhard.


config
label: foo
endconfig

loss
nodefault.
 hypothyroid,hypothyroid: 0
 negative,hypothyroid: 400.5
 ?,hypothyroid: 1
 hypothyroid,negative: 1
 negative,negative: 0
 ?,negative: 1
endloss



age:				 continuous.
sex:				 M,F.
on_thyroxine:			 f,t.
query_on_thyroxine:		 f,t.
on_antithyroid_medication:	 f,t.
thyroid_surgery:		 f,t.
query_hypothyroid:		 f,t.
query_hyperthyroid:		 f,t.
pregnant:			 f,t.
sick:				 f,t.
tumor:				 f,t.
lithium:			 f,t.
goitre:				 f,t.
TSH_measured:			 y,n.
TSH:				 continuous.
T3_measured:			 y,n.
T3:				 continuous.
TT4_measured:			 y,n
TT4:				 continuous.
T4U_measured:			 y,n.
T4U:				 continuous.
FTI_measured:			 y,n.
FTI:				 continuous.
TBG_measured:			 y,n.
TBG:				 continuous.
foo:				 hypothyroid, negative.