Pipe Operator - English
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Assignment
Not able to find the mean of sepal length and sepal width.Following output is obtained . iris %>% group_by(Species) %>% summarise(mean(Sepal.Length) %>% summarise(mean(Sepal.Width))+
11-12M 20-30SMay 14, 2025, 2:43 p.m. Joohi
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group_by()
gr_dramaMov <- group_by(dramaMov, mpaa_rating)When I checked the gr_dramaMov dataframe after execution of above line , they don't appear to be grouped like "R" rated would be closer to one another , "PG-13" rated would be closer to one another and so on..
06-07M 30-40SMay 15, 2025, 1:24 a.m. DVB
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Pipe operator
For the assignment on pipe operator1. Use the built-in data set iris. Using the pipe operator, group the flowers by their Species. 2. Summarise the grouped data by the mean of Sepal.Length and Sepal.Width. How can I summarise 2 variables at the same time in same row
12-13M 20-30SMay 15, 2025, 4:04 p.m. sakshi.khanna@juit.ac.in
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Overview of R and RStudio -
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Installing R and RStudio on Linux
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Installing R and RStudio on Windows
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Introduction to basics of R
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Introduction to Data Frames in R
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Introduction to RStudio
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Introduction to R script
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Working directories in RStudio
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Indexing and Slicing Data Frames
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Creating Matrices using Data Frames
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Operations on Matrices and Data Frames
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Merging and Importing Data
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Data types and Factors
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Lists and its Operations
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Plotting Histograms and Pie Chart
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Plotting Bar Charts and Scatter Plot
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Introduction to ggplot2
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Aesthetic Mapping in ggplot2
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Data Manipulation using dplyr Package
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More Functions in dplyr Package
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Pipe Operator
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Conditional Statements
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Functions in R
Questions posted on ST Forums:
Outline:
About summarise function in dplyr About group_by function in dplyr Difference between summarise and group_by functions Use summarise and group_by functions together About pipe operator Examples of pipe operator Benefits of pipe operator Use ggplot2 and dplyr package using pipe operator Plot a boxplot Use count in summarise function