Course Content

Introduction to Python for Data Analysis

1. Introduction to Python 1/2

First Step in Programming Deal with Variables Practice Math Skills Challenge Deal with Percents How to Attract One User?Challenge Learn Numbers Boolean Numbers Challenge Work with Strings Get Familiar with Lists How to Append New Element?

2. Introduction to Python 2/2

If/Else Challenge If/Elif/Else Challenge For Loop While Loop Challenge

3. Explore Dataset

Data Study Operations with the File How to Explore the Data Sorting Data Max, min, mean, median Challenge Group Data Dive Deeper into Grouping Data Group Data 2.0 Introduction to NumPy Pivot Tables Recall Loops .loc Function Deal with Several Conditions Challenge Visualization: First Steps Dive Deeper into Visualization

4. Becoming an Analyst

Data Study Examine Dataset Challenge СAC 1/2 CAC 2/2 Costly Customers Organic Traffic How Much Do We Earn Is Our Project Profitable? ROI 1/2 ROI 2/2 Visualize ROI

For Loop

We use loops if we want to repeat any action n-times.

Look at the example!

end = ' ' means that the result will be written in one row (not column).

Look at the table to understand how to minimize the writing of mathematical operators!

Formula	How to minimize
`a = a + 1`	`a += 1`
`a = a - 1`	`a -= 1`
`a = a * 2`	`a *= 2`
`a = a / 2`	`a /= 2`

Task

Update subscription prices according to discounts.

Set the for loop to work with the prices using the i iterator.
Set the condition if the element of the list is greater than 30.
Set the 25% discount if the price is greater than 30.
Decrease the i by 3.
Print the prices.

Task

Update subscription prices according to discounts.

Set the for loop to work with the prices using the i iterator.
Set the condition if the element of the list is greater than 30.
Set the 25% discount if the price is greater than 30.
Decrease the i by 3.
Print the prices.

Everything was clear?

Section 2. Chapter 5

For Loop

We use loops if we want to repeat any action n-times.

Look at the example!

end = ' ' means that the result will be written in one row (not column).

Look at the table to understand how to minimize the writing of mathematical operators!

Formula	How to minimize
`a = a + 1`	`a += 1`
`a = a - 1`	`a -= 1`
`a = a * 2`	`a *= 2`
`a = a / 2`	`a /= 2`

Task

Update subscription prices according to discounts.

Set the for loop to work with the prices using the i iterator.
Set the condition if the element of the list is greater than 30.
Set the 25% discount if the price is greater than 30.
Decrease the i by 3.
Print the prices.

Task

Update subscription prices according to discounts.

Set the for loop to work with the prices using the i iterator.
Set the condition if the element of the list is greater than 30.
Set the 25% discount if the price is greater than 30.
Decrease the i by 3.
Print the prices.

Everything was clear?

Section 2. Chapter 5

For Loop

We use loops if we want to repeat any action n-times.

Look at the example!

end = ' ' means that the result will be written in one row (not column).

Look at the table to understand how to minimize the writing of mathematical operators!

Formula	How to minimize
`a = a + 1`	`a += 1`
`a = a - 1`	`a -= 1`
`a = a * 2`	`a *= 2`
`a = a / 2`	`a /= 2`

Task

Update subscription prices according to discounts.

Set the for loop to work with the prices using the i iterator.
Set the condition if the element of the list is greater than 30.
Set the 25% discount if the price is greater than 30.
Decrease the i by 3.
Print the prices.

Task

Update subscription prices according to discounts.

Set the for loop to work with the prices using the i iterator.
Set the condition if the element of the list is greater than 30.
Set the 25% discount if the price is greater than 30.
Decrease the i by 3.
Print the prices.

Everything was clear?

We use loops if we want to repeat any action n-times.

Look at the example!

end = ' ' means that the result will be written in one row (not column).

Look at the table to understand how to minimize the writing of mathematical operators!

Formula	How to minimize
`a = a + 1`	`a += 1`
`a = a - 1`	`a -= 1`
`a = a * 2`	`a *= 2`
`a = a / 2`	`a /= 2`

Task

Update subscription prices according to discounts.

Set the for loop to work with the prices using the i iterator.
Set the condition if the element of the list is greater than 30.
Set the 25% discount if the price is greater than 30.
Decrease the i by 3.
Print the prices.

Section 2. Chapter 5

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