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Update 02-数据表检查.md

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02-数据表检查.md

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`‎02-数据表检查.md‎`

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Original file line number	Diff line number	Diff line change
`@@ -148,6 +148,10 @@ df.quantile(0.25, axis=1) #每一行的四分之一位数`
`148`	`148`	`df['age'].idxmax()`
`149`	`149`	`df['age'].idxmin()`
`150`	`150`
	`151`	`+# 返回行最大(小)值所对应的index`
	`152`	`+df.idxmax(axis=1)`
	`153`	`+df.idxmin(axis=1)`
	`154`	`+`
`151`	`155`	`# 返回某列最大(小)值的前三`
`152`	`156`	`df['age'].nlargest(3)`
`153`	`157`	`df['age'].nsmallest(3)`

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