Course Content

What is R?

7m 47s

How to use LearnVern

3m 20s

How is R environment?

9m 13s

What are objects in R?

3m 16s

How to handle objects in R?

8m 6s

What are data types in R?

6m 21s

How to handle vectors in R?

8m 25s

How to handle lists in R?

6m 40s

How to handle matrices in R?

7m 10s

How to handle factors in R?

4m 14s

How to handle data frames in R?

8m 42s

Objects and Datatypes Quiz

10m

How to handle strings in R?

3m 32s

Demo of handling string in R

4m 18s

What are some basic string manipulations?

1m 56s

Demo of string manipulations in R

5m 35s

How can 2 set of string vectors be manipulated?

1m 28s

Demo for set operations

6m 56s

How to handle strings in R using string package?

3m 39s

String handling using stringr package

15m 53s

Handling strings Quiz

5m

What are control structures?

5m 45s

How is if-else loop used in R?

15m 29s

How is for Loop used in R?

9m 5s

How is while Loop used in R?

6m 35s

How are functions used in R?

7m 21s

Assignment

1m 45s

How to handle dates in R?

7m 6s

How is Date class function used?

6m 56s

How is POSIXct function used?

6m 10s

How is POSIXlt function used?

7m 53s

How to handle dates using lubridate package in R?

8m 28s

What is ggplot in visualization?

4m 3s

Demo for using ggplot

14m 47s

How do you plot histogram using ggplot?

10m 25s

How to do scaling in ggplot?

4m 52s

How to set themes in ggplot?

7m 52s

Assignment

2m 38s

Assignment

2m 48s

What is tapply function in apply familly?

R Programming Course Loop Functions

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Course Content

What is R?

7m 47s

How to use LearnVern

3m 20s

How is R environment?

9m 13s

What are objects in R?

3m 16s

How to handle objects in R?

8m 6s

What are data types in R?

6m 21s

How to handle vectors in R?

8m 25s

How to handle lists in R?

6m 40s

How to handle matrices in R?

7m 10s

How to handle factors in R?

4m 14s

How to handle data frames in R?

8m 42s

How to handle strings in R?

3m 32s

Demo of handling string in R

4m 18s

What are some basic string manipulations?

1m 56s

Demo of string manipulations in R

5m 35s

How can 2 set of string vectors be manipulated?

1m 28s

Demo for set operations

6m 56s

How to handle strings in R using string package?

3m 39s

String handling using stringr package

15m 53s

What are control structures?

5m 45s

How is if-else loop used in R?

15m 29s

How is for Loop used in R?

9m 5s

How is while Loop used in R?

6m 35s

How are functions used in R?

7m 21s

Assignment

1m 45s

How to handle dates in R?

7m 6s

How is Date class function used?

6m 56s

How is POSIXct function used?

6m 10s

How is POSIXlt function used?

7m 53s

How to handle dates using lubridate package in R?

8m 28s

What is ggplot in visualization?

4m 3s

Demo for using ggplot

14m 47s

How do you plot histogram using ggplot?

10m 25s

How to do scaling in ggplot?

4m 52s

How to set themes in ggplot?

7m 52s

Assignment

2m 38s

Assignment

2m 48s

FAQs

tapply() is a function that applies to subsets of a vector. It is most commonly used in the following situations: A dataset that can be divided into categories (via categorical variables - aka factors) We'd like to divide the data into groups. We want to apply a function to each group.

The apply family contains functions that allow us to handle data frames, arrays, matrices, and vectors. These routines can be used instead of loops. Functions, on the other hand, are more efficient than loops since they execute faster. These routines eliminate the need to create a loop in R explicitly.

tapply() is a function that applies to subsets of a vector. It is most commonly used in the following situations: A dataset that can be divided into categories (via categorical variables - aka factors) We'd like to divide the data into groups.

R is a good place to start. Apply a function to each cell of a ragged array, that is, to each (non-empty) collection of values determined by a unique combination of specific parameters' levels. tapply() basically applies a function or operation to a subset of the vector that is split down by a factor variable.

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