Module writepop
source code
writepop
Contains all classes used to write and extract individuals and
populations on the SQLite database.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Author:
by Mehdi Khoury
Version:
1.20
Copyright:
(c) 2009 Mehdi Khoury under the mit license
http://www.opensource.org/licenses/mit-license.html
Contact:
mehdi.khoury at gmail.com
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WriteInitialPopulation2DB(popsize,
root_node,
mintreesize,
maxtreesize,
buildmethod,
dbname,
tablename)
create a new population of randomly generated trees and write them to
a database |
source code
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PrintPopFromDB(dbname,
tablename,
filename)
print the population of trees with id references, tree depth and
fitness scores |
source code
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Function: ClearDBTable
clear the table of the database
- Parameters:
dbname - path to database e.g.
r'D:d_work\pythongp\pySTGP_0.51\src\pop_db'table - name of the database table
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WriteInitialPopulation2DB(popsize,
root_node,
mintreesize,
maxtreesize,
buildmethod,
dbname,
tablename)
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Function: WriteInitialPopulation2DB
create a new population of randomly generated trees and write them
to a database
- Parameters:
popsize - size of the populationroot_node - specify the root node and its arity (nb of children). e.g.
(0,2,'root')mintreesize - min tree depth (at the moment only 2 working)maxtreesize - max tree depth (At least 2)buildmethod - which Koza method is used to build the trees (either
'AddHalfNode' or 'AddFullNode' or 'AddGrowNodeMin' respectively
for Half, Full, or Ramped Half-n-Half)dbname - path to database e.g.
r'D:d_work\pythongp\pySTGP_0.51\src\pop_db'tablename - name of the database table
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PrintPopFromDB(dbname,
tablename,
filename)
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Function: PrintPopFromDB
print the population of trees with id references, tree depth and
fitness scores
- Parameters:
dbname - path to database e.g.
r'D:d_work\pythongp\pySTGP_0.51\src\pop_db'tablename - name of the database table
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Function: GetPopStatFromDB
get statistical data about the population
- Parameters:
dbname - path to database e.g.
r'D:d_work\pythongp\pySTGP_0.51\src\pop_db'tablename - name of the database table
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