Slider in `scatter_3d` and `scatter` makes some data points go missing
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- Python
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描述
Only 2 out of 4 categories are plotted when I use a slider. Other data points do not appear at all. When I slide the slider, different categories are plotted. E.g. in the MWE below, only TP and FP show up when the slider is below 0.9. At 0.9 only TN and FN show up.
This behavior also happens for both 2d and 3d scatter plots. See the MWE below for 3d.
import numpy as np
import pandas as pd
import plotly.express as px
def plot_scatter_3d_mwe():
# Create a small DataFrame with fake data
data = {
'Dim1': np.random.rand(10),
'Dim2': np.random.rand(10),
'Dim3': np.random.rand(10),
'due': [1, 0, 1, 0, 1, 0, 1, 0, 1, 0],
'serial_number': range(10),
'predicted_probabilities': [0.9, 0.8, 0.4, 0.2, 0.6, 0.7, 0.1, 0.5, 0.3, 0.95]
}
df = pd.DataFrame(data)
thresholds = np.arange(0, 1.1, 0.1)
all_frames = []
for threshold in thresholds:
# Recalculate predictions based on the threshold
predicted = (df['predicted_probabilities'] >= threshold).astype(int)
# Create the 4 categories for coloring: TP, TN, FP, FN
conditions = [
(df['due'] == 1) & (predicted == 1), # TP
(df['due'] == 0) & (predicted == 0), # TN
(df['due'] == 0) & (predicted == 1), # FP
(df['due'] == 1) & (predicted == 0), # FN
]
categories = ['TP', 'TN', 'FP', 'FN']
# Assign the categories to a new column
df['category'] = np.select(conditions, categories, default='Unknown')
df['threshold'] = threshold # Add threshold as a column for animation frame
all_frames.append(df.copy())
# Concatenate all frames for animation
df_all_frames = pd.concat(all_frames)
# Plot the scatter 3D with the categories as color and animate over thresholds
fig = px.scatter_3d(df_all_frames,
x='Dim1', y='Dim2', z='Dim3',
color='category',
animation_frame='threshold',
animation_group='serial_number')
fig.show()
# Call the function
plot_scatter_3d_mwe()
贡献指南
从这里开始
- 先读完整个 Issue,再读项目的贡献指南。
- 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
- Fork 仓库,在一个分支上完成修改。
- 提交 Pull Request,并在描述里引用这个 Issue 编号。
调研方向
运行 plot_scatter_3d_mwe 中提供的 Python MWE,并比较动画 2D 和 3D 散点图在各个阈值帧之间的行为。跟踪 animation_frame 和 animation_group 在生成的图形中的表示方式;当四个类别及其数据点在滑块的每个位置都仍然可用时,即视为完成。
由索引模型根据 Issue 内容生成。
评估
- 技术栈
- numpy, pandas, plotly, python
- 领域
- data-visualization
- Issue 类型
- 缺陷
- 难度
- 4/5
- 预计耗时
- 3-5 天
- 活跃度
- 停滞
- 描述清晰度
- 基本清楚
- 新手友好度
- 35/100