kopia lustrzana https://github.com/animator/learn-python
68 wiersze
1.7 KiB
Markdown
68 wiersze
1.7 KiB
Markdown
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# Viewing rows of the frame
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## `head()` method
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The pandas library in Python provides a convenient method called `head()` that allows you to view the first few rows of a DataFrame. Let me explain how it works:
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- The `head()` function returns the first n rows of a DataFrame or Series.
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- By default, it displays the first 5 rows, but you can specify a different number of rows using the n parameter.
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### Syntax
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```python
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dataframe.head(n)
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```
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`n` is the Optional value. The number of rows to return. Default value is `5`.
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### Example
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```python
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import pandas as pd
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df = pd.DataFrame({'animal': ['alligator', 'bee', 'falcon', 'lion','tiger','rabit','dog','fox','monkey','elephant']})
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df.head(n=5)
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```
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#### Output
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```
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animal
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0 alligator
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1 bee
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2 falcon
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3 lion
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4 tiger
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```
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## `tail()` method
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The `tail()` function in Python displays the last five rows of the dataframe by default. It takes in a single parameter: the number of rows. We can use this parameter to display the number of rows of our choice.
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- The `tail()` function returns the last n rows of a DataFrame or Series.
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- By default, it displays the last 5 rows, but you can specify a different number of rows using the n parameter.
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### Syntax
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```python
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dataframe.tail(n)
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```
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`n` is the Optional value. The number of rows to return. Default value is `5`.
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### Example
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```python
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import pandas as pd
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df = pd.DataFrame({'fruits': ['mongo', 'orange', 'apple', 'lemon','banana','water melon','papaya','grapes','cherry','coconut']})
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df.tail(n=5)
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```
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#### Output
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```
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fruits
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5 water melon
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6 papaya
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7 grapes
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8 cherry
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9 coconut
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```
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