replace for loop with dplyr across / rowwise?...

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Mutating a column of grouped data with a value from a column based on a specific timestamp from anot...

set column value to first value meeting conditions across columns...

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Define a new variable name based on a conditon within R dplyr universe (mutate, if, ifelse)...

Why changing from pivot long to Pivot wide adds new rows to my data?...

JS: Check for existence of deep object key and replace value...

Add lists as variables in a dataframe...

New identifier column to dataframe based on whether string contains said identifier...

Change character values under specific columns that ends with similar suffixes in R...

r - Group by two columns and create a new sequential number for values of one of the columns...

select values based on column index...

R Replace column values in dataframe base on matching indexing column in separate dataframe...

How to index variables using for-loop in R?...

Mutate new column with values conditioned by other columns of the dataset...

create multiple columns based on a values of one column for different times...

How to replace a value by function in R using mutate?...

How to create a new df with each "cell" mutated by a formula?...

When using mutate for several columns in dplyr, how can I reference to another data frame by row nam...

Use substrings of column names in across...

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Creating a new variable by decades using mutate()...

Create a new column by applying a custom function to selected columns only in R...

Count by group and condition on a number in R...

Trying to sort character variable into new variable with new value based on conditions...

Mutate specific colums and add pattern to the name...