Shree

Shree has asked 2 questions and find answers to 24 problems.

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Here to share and learn about R and Shiny.

Shree questions

tidyverse: row wise calculations by group

Shree answers

R cummax function with NA
Remove the first row from each group if the second row meets a condition
Is there a way to use Linear and Mixed Integer Programming to create groups while Minimizing the Average within the group in R?
Shiny sliderTextInput or sliderInput with different value labels
R (and dplyr?) - Sampling from a dataframe by group, up to a maximum sample size of n
How do I select all unique combinations of two columns in an R data frame?
What is the difference between ave() function and mean() function in R?
r sequence problem - max number of changes in a given sequence
What's a tidyverse approach to iterating over rows in a data frame when vectorisation is not feasible?
dplyr mutate specific columns by evaluating lookup cell value