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Columns and DataType Not Explicitly Set on line 290 of utils.py #27

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CodeSmileBot opened this issue Jul 4, 2023 · 2 comments
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@CodeSmileBot
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Hello!

I found an AI-Specific Code smell in your project.
The smell is called: Columns and DataType Not Explicitly Set

You can find more information about it in this paper: https://dl.acm.org/doi/abs/10.1145/3522664.3528620.

According to the paper, the smell is described as follows:

Problem If the columns are not selected explicitly, it is not easy for developers to know what to expect in the downstream data schema. If the datatype is not set explicitly, it may silently continue the next step even though the input is unexpected, which may cause errors later. The same applies to other data importing scenarios.
Solution It is recommended to set the columns and DataType explicitly in data processing.
Impact Readability

Example:

### Pandas Column Selection
import pandas as pd
df = pd.read_csv('data.csv')
+ df = df[['col1', 'col2', 'col3']]

### Pandas Set DataType
import pandas as pd
- df = pd.read_csv('data.csv')
+ df = pd.read_csv('data.csv', dtype={'col1': 'str', 'col2': 'int', 'col3': 'float'})

You can find the code related to this smell in this link: https://github.com/ethen8181/machine-learning/blob/916fc7fe0e5e788a1cc8b8f4d24d44f05c492d5e/model_selection/prob_calibration/calibration_module/utils.py#L280-L300.

I also found instances of this smell in other files, such as:

File: https://github.com/ethen8181/machine-learning/blob/master/big_data/sparkml/get_data.py#L21-L31 Line: 26
File: https://github.com/ethen8181/machine-learning/blob/master/data_science_is_software/src/features/build_features.py#L4-L14 Line: 9
File: https://github.com/ethen8181/machine-learning/blob/master/deep_learning/contrastive/clip/clip/utils.py#L5-L15 Line: 10
File: https://github.com/ethen8181/machine-learning/blob/master/model_selection/partial_dependence/partial_dependence.py#L307-L317 Line: 312
.

I hope this information is helpful!

@abhisheksharma010
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Hello, I would like to work on this, can it be assigned to me

@ethen8181
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Owner

Thanks for the enthusiasm! Yes, feel free to submit a PR for any of the files mentioned calibration_module, clip, partial_dependence in the first thread.

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