Error

[asksak]

Hello,

I got a consistent error with one of my setups. The data is error free and works with other operator setups but not this one:

+,2 -,2

=,2 /,2 *,2 or,2

`Evaluate all Trees in Generation 4 ValueError: Error from parse_expr with transformed code: "(((Symbol ('A17x' ))>=(Symbol ('A6x' )))>=((Symbol ('A3x' ))>=(Symbol ('A22x' ))))"

The above exception was the direct cause of the following exception:

Traceback (most recent call last): File "/Users/aymansalsaket/Desktop/new/karoo-gp.py", line 593, in gp.fit(X, y) File "/Users/aymansalsaket/Desktop/new/karoo_gp/base_class.py", line 802, in fit super().fit(X, y, *args, **kwargs) File "/Users/aymansalsaket/Desktop/new/karoo_gp/base_class.py", line 458, in fit self.population.evaluate(X_train, y_train, self.X_train_hash) File "/Users/aymansalsaket/Desktop/new/karoo_gp/population.py", line 93, in evaluate predictions = self.model.batch_predict(X, self.trees, X_hash) File "/Users/aymansalsaket/Desktop/new/karoo_gp/base_class.py", line 492, in batch_predict y = self.engine.predict(trees, X, X_hash) File "/Users/aymansalsaket/Desktop/new/karoo_gp/engine.py", line 155, in predict expr = tree.expression File "/Users/aymansalsaket/Desktop/new/karoo_gp/tree.py", line 78, in expression return self.root.parse(simplified=True) File "/Users/aymansalsaket/Desktop/new/karoo_gp/node.py", line 317, in parse return (f'({self.children[0].parse(simplified)}{ws}{self.label}' File "/Users/aymansalsaket/Desktop/new/karoo_gp/node.py", line 318, in parse f'{ws}{self.children[1].parse(simplified)})') File "/Users/aymansalsaket/Desktop/new/karoo_gp/node.py", line 318, in parse f'{ws}{self.children[1].parse(simplified)})') File "/Users/aymansalsaket/Desktop/new/karoo_gp/node.py", line 318, in parse f'{ws}{self.children[1].parse(simplified)})') File "/Users/aymansalsaket/Desktop/new/karoo_gp/node.py", line 322, in parse f'{ws}else{ws}{self.children[2].parse(simplified)})') File "/Users/aymansalsaket/Desktop/new/karoo_gp/node.py", line 321, in parse f'{ws}if{ws}{self.children[1].parse(simplified)}' File "/Users/aymansalsaket/Desktop/new/karoo_gp/node.py", line 289, in parse result = str(sympify(raw_expr)) File "/opt/anaconda3/envs/Master-TF/lib/python3.9/site-packages/sympy/core/sympify.py", line 495, in sympify expr = parse_expr(a, local_dict=locals, transformations=transformations, evaluate=evaluate) File "/opt/anaconda3/envs/Master-TF/lib/python3.9/site-packages/sympy/parsing/sympy_parser.py", line 1105, in parse_expr raise e from ValueError(f"Error from parse_expr with transformed code: {code!r}") File "/opt/anaconda3/envs/Master-TF/lib/python3.9/site-packages/sympy/parsing/sympy_parser.py", line 1096, in parse_expr rv = eval_expr(code, local_dict, global_dict) File "/opt/anaconda3/envs/Master-TF/lib/python3.9/site-packages/sympy/parsing/sympy_parser.py", line 915, in eval_expr expr = eval( File "", line 1, in TypeError: '>=' not supported between instances of 'GreaterThan' and 'GreaterThan' `

[asksak]

Note that Sympify caused a similar error in the last version when I tried to code comparison operators. It evaluated parts of some statements.

[granawkins]

Try with ‘==‘ instead?

Thanks for the feedback though, that's something we should recognize early and give a clearer error message.

On Wed, 24 Aug 2022 at 23:35 asksak @.***> wrote:

Note that Sympify caused a similar error in the last version when I tried to code comparison operators. It evaluated parts of some statements.

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[asksak]

Try with ‘==‘ instead?

Thanks for the feedback though, that's something we should recognize early and give a clearer error message.

On Wed, 24 Aug 2022 at 23:35 asksak @.***> wrote:

Note that Sympify caused a similar error in the last version when I tried

to code comparison operators. It evaluated parts of some statements.

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Reply to this email directly, view it on GitHub

https://github.com/kstaats/karoo_gp/issues/91#issuecomment-1225966989,

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ID: @.***>

By the way the operator is >= I don't know why this editor removed the >. I tried removing OR and keeping >= and the run completes successfully, but if >= and or are in the operator list it crashes.

Note the error at the end:

TypeError: '>=' not supported between instances of 'GreaterThan' and 'GreaterThan'

[asksak]

On the other hand, if settings are

c,r,5,5,3,120,1000

The session will run with no problem.

You may ask why I modified the generations to be able to reach 1000; well according to my experience this is important to reach better fitness values, and no, the result would not be overfitted.

[granawkins]

Ok, let me take a look. Can you send the exact command-line prompt you're using? like python3 karoo-gp.py -pop 120 etc.

[asksak]

This is the command line prompt:

sudo nice -1 python karoo-gp.py

My problems are:

1. works fine c,r,5,5,3,120,1000 with operators: +,-,*,/,>=,if, or
2. crashes c,r,6,8,3,120,1000 with operators: +,-,*,/,>=,if, or (same ops)
3. error is TypeError: '>=' not supported between instances of 'GreaterThan' and 'GreaterThan' as shown previously
4. sin, cos, tan , log .... disabled by code
5. crashes c,r,5,5,3,120,1000 with operators: +,-,*,/,>=,if, or,sqrt with error:
6. Sympify of expression 'could not parse '(((A6x)+(A21x))/((A32x)sqrt(A7)))'' failed, because of exception being raised: SyntaxError: invalid syntax (, line 1)

I hope this helps

If you need me to do specific tests, I would be more than happy