数据框不会打印

Posted 2023-04-15

【中文标题】数据框不会打印

【英文标题】：Dataframe Won't Print

【发布时间】：2021-09-23 02:59:48

【问题描述】：

import pyspark.sql.functions as f

df_ssaGenderWithinTenPercent = df_ssaGender.select("name", "women", "men", "total", "gender", "gender_ratio", \
f.when((df_ssaGender.gender_ratio >.45) & (df_ssaGender.gender_ratio < .55) & (df_ssaGender.gender_ratio >= 10000)).orderBy("gender", "gender_ratio", ascending = False)
df_ssaGenderWithinTenPercent.show()

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所以我之前创建了一个名为 df_ssaGender 的数据框，并正在选择这些列。我需要获取 gender_ratio 介于 45% 和 55% 之间的数据。但是，每当我运行它时，我都会不断收到此语法错误，并且我很确定代码是正确的。有什么想法吗？

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【参考方案1】：

通过分解你的代码，我发现了 2 个你遗漏的地方

df_ssaGenderWithinTenPercent = (df_ssaGender
  .select(
    "name",
    "women",
    "men",
    "total",
    "gender",
    "gender_ratio",
    f.when(
      (df_ssaGender.gender_ratio >.45) &
      (df_ssaGender.gender_ratio < .55) &
      (df_ssaGender.gender_ratio >= 10000) # you're also missing a retrun value here
    )
  ) # you were missing this
  .orderBy("gender", "gender_ratio", ascending = False)
)
df_ssaGenderWithinTenPercent.show()