Pandas DataFrame Basics: Shape, Head, Unique & Sorting

Use basic methods of Pandas to show the rows and columns. Details questions and sample DataFrame is here

https://www.plus2net.com/python/pandas-dataframe-exercise1.php
https://www.plus2net.com/python/pandas-student.php

using shape
print(df.shape) # ( 35, 5)
This will give number of rows and columns in the DataFrame.
Frist 4 rows of data
Print(df.head(4))
Number of rows using len()
Print(len(df))
Displaying all columns
Print(df.columns)
Displaying first 5 records and name column
Print(df[‘name’][:5])
Displaying highest 5 records based on mark
Df=df.sort_values([‘mark’],ascending=False)
Print(df[:5])
Displaying all unique class
print(df['class'].unique())
We can get number of unique class by using len()

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