Other important commands in Python

Other important commands in Python

1. arange() : [ PS: it is arange not arrange, even I got confused for the first time :p ]

arange returns a full array, which occupies memory, which might be overhead.

2. reshape():

3. Transpose frame: 

4.Transpose Transpose frame:

Example: 

1. re-indexing or changing the order of rows:

2. re-indexing or changing the order of columns:

3. re-indexing:

4. Using comparator operator:

5. Using comparator operator and gives result in True/False:

6. To display everything up to three.

7. For concatenation of two data use '+' operator.