Closed mvanwyk closed 4 months ago
The changes encompass enhancements in financial data visualization and documentation styling. Key updates include adding a comprehensive description and example of Waterfall plots in analysis_modules.md
, introducing CSS rules for layout management, augmenting mkdocs.yml
with markdown extensions, enabling branch coverage in tests, and extending standard_graphs.py
with a new waterfall_plot
function. Additionally, updates in graph_utils.py
refine graph styles, while new test cases ensure functionality in test_standard_graphs.py
.
Files | Change Summary |
---|---|
docs/analysis_modules.md |
Added content explaining Waterfall plots and their applications in financial data visualization. |
docs/stylesheets/extra.css |
Added CSS rule for class .clear:after to ensure proper clearing of floated elements. |
mkdocs.yml |
Introduced several markdown extensions to enhance documentation capabilities and specified Google analytics. |
pyproject.toml |
Included --cov-branch option in pytest configuration for branch coverage reporting. |
pyretailscience/standard_graphs.py |
Enhanced index_plot function and added a new waterfall_plot function for generating Waterfall charts. |
pyretailscience/style/graph_utils.py |
Updated GraphStyles class with a default font size and added padding parameters to standard_graph_styles . |
tests/test_standard_graphs.py |
Introduced tests for the new waterfall_plot function, covering various scenarios and edge cases. |
Amidst the code where numbers play,
A Waterfall Plot now holds sway.
With bars and labels, clear and bright,
Financial trends come to light.
In tests and styles, improvements blend,
Our graphs now shine from end to end.
π°β¨π
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β±οΈ Estimated effort to review: 3 π΅π΅π΅βͺβͺ |
π§ͺ No relevant tests |
π No security concerns identified |
β‘ Key issues to review Error Handling The `waterfall_plot` function could benefit from additional error handling for input validation, such as ensuring that `amounts` and `labels` are not empty. Performance Concern The use of `df.apply` in line 336 might lead to performance issues for large datasets. Consider using vectorized operations or other efficient methods. |
Category | Suggestion | Score |
Possible bug |
β Prevent division by zero in percentage calculation___ **Consider using a more robust method for calculating percentage labels in thewaterfall_plot to avoid division by zero errors when total_change is zero.**
[pyretailscience/standard_graphs.py [376]](https://github.com/Data-Simply/pyretailscience/pull/63/files#diff-916c262a44bdf2986e4e15b87f1be27cc247394b424104b94269e16edcc25b1cR376-R376)
```diff
-labels = df["amounts"].apply(lambda x: f"{x/total_change:.0%}")
+labels = df["amounts"].apply(lambda x: f"{x/total_change:.0%}" if total_change != 0 else "0%")
```
`[Suggestion has been applied]`
Suggestion importance[1-10]: 10Why: This suggestion addresses a potential division by zero error, which is a critical bug that could cause the function to fail during execution. | 10 |
Add validation to ensure all elements in 'amounts' are numeric___ **Thewaterfall_plot function should validate the amounts list to ensure it contains only numeric values to prevent runtime errors during plotting. This can be achieved by adding a check at the beginning of the function.** [pyretailscience/standard_graphs.py [288]](https://github.com/Data-Simply/pyretailscience/pull/63/files#diff-916c262a44bdf2986e4e15b87f1be27cc247394b424104b94269e16edcc25b1cR288-R288) ```diff def waterfall_plot( amounts: list[float], labels: list[str], ... + if not all(isinstance(amount, (int, float)) for amount in amounts): + raise ValueError("All elements in 'amounts' must be numeric.") ``` Suggestion importance[1-10]: 9Why: Adding validation for numeric values in the `amounts` list is crucial to prevent runtime errors, ensuring robustness and reliability of the function. | 9 | |
Performance |
Use vectorized operations for filtering to enhance performance___ **To enhance performance, consider filtering out zero amounts using vectorizedoperations instead of applying a lambda function, which can be slower for large datasets.** [pyretailscience/standard_graphs.py [331-332]](https://github.com/Data-Simply/pyretailscience/pull/63/files#diff-916c262a44bdf2986e4e15b87f1be27cc247394b424104b94269e16edcc25b1cR331-R332) ```diff -df = df[df["amounts"] != 0] +df = df[df.amounts.ne(0)] ``` - [ ] **Apply this suggestion** Suggestion importance[1-10]: 7Why: Using vectorized operations can improve performance, especially for large datasets, making the code more efficient. | 7 |
Maintainability |
Refactor the function into smaller, more manageable parts___ **To improve readability and maintainability, consider refactoring thewaterfall_plot function by splitting it into smaller functions, such as prepare_data , configure_plot , and add_labels .**
[pyretailscience/standard_graphs.py [288-396]](https://github.com/Data-Simply/pyretailscience/pull/63/files#diff-916c262a44bdf2986e4e15b87f1be27cc247394b424104b94269e16edcc25b1cR288-R396)
```diff
+def prepare_data(amounts, labels, remove_zero_amounts):
+ ...
+def configure_plot(df, display_net_bar, display_net_line, ax, **kwargs):
+ ...
+def add_labels(ax, data_label_format, df, decimals):
+ ...
def waterfall_plot(
amounts: list[float],
labels: list[str],
...
+ df = prepare_data(amounts, labels, remove_zero_amounts)
+ ax = configure_plot(df, display_net_bar, display_net_line, ax, **kwargs)
+ add_labels(ax, data_label_format, df, decimals)
```
Suggestion importance[1-10]: 6Why: Refactoring into smaller functions can enhance readability and maintainability, but it is not critical for functionality. It is a good practice for long-term code management. | 6 |
Attention: Patch coverage is 71.05263%
with 11 lines
in your changes missing coverage. Please review.
Files | Coverage Ξ | |
---|---|---|
pyretailscience/style/graph_utils.py | 82.08% <100.00%> (ΓΈ) |
|
pyretailscience/standard_graphs.py | 43.30% <70.27%> (ΓΈ) |
PR Type
Enhancement, Documentation
Description
waterfall_plot
function to generate waterfall charts inpyretailscience/standard_graphs.py
.index_plot
function to usegu.add_source_text
andgu.standard_tick_styles
.GraphStyles
inpyretailscience/style/graph_utils.py
to include default bar label font size and padding options for title and axis labels.waterfall_plot
function indocs/analysis_modules.md
, including an example usage..clear
indocs/stylesheets/extra.css
to clear floats.mkdocs.yml
to include new markdown extensions for better documentation formatting.Changes walkthrough π
standard_graphs.py
Add waterfall plot function and enhance index plot
pyretailscience/standard_graphs.py
waterfall_plot
to generate waterfall charts.index_plot
function to usegu.add_source_text
andgu.standard_tick_styles
.graph_utils.py
Add padding options and bar label font size to GraphStyles
pyretailscience/style/graph_utils.py
GraphStyles
.standard_graph_styles
to include padding options for title andaxis labels.
extra.css
Add CSS class for clearing floats
docs/stylesheets/extra.css - Added a new CSS class `.clear` to clear floats.
analysis_modules.md
Document waterfall plot function with example
docs/analysis_modules.md
waterfall_plot
function.waterfall_plot
function.mkdocs.yml
Update mkdocs configuration with new markdown extensions
mkdocs.yml - Added new markdown extensions for better documentation formatting.
Summary by CodeRabbit
New Features
Documentation
analysis_modules.md
with information on Waterfall Plot.Style
extra.css
.Configuration
mkdocs.yml
with new markdown extensions.Testing
Chores
pyproject.toml
to include branch coverage reporting for tests.