zhengruifeng opened a new pull request, #48164:
URL: https://github.com/apache/spark/pull/48164
### What changes were proposed in this pull request?
Switch `Scatter` plot to sampled data
### Why are the changes needed?
when the data distribution has relationship with the order, the first n rows
will not be representative of the whole dataset
for example:
```
import pandas as pd
import numpy as np
import pyspark.pandas as ps
# ps.set_option("plotting.max_rows", 10000)
np.random.seed(123)
pdf = pd.DataFrame(np.random.randn(10000, 4),
columns=list('ABCD')).sort_values("A")
psdf = ps.DataFrame(pdf)
psdf.plot.scatter(x='B', y='A')
```
all datapoints:
before (first 1k datapoints):
after (sampled 1k datapoints):
### Does this PR introduce _any_ user-facing change?
yes
### How was this patch tested?
ci and manually test
### Was this patch authored or co-authored using generative AI tooling?
no
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