Replace values in data table based on conditions in R

R Replace Values in Data Frame Conditionally (4 Examples) | Exchange Value in Column & Entire Matrix

Create new Column by Condition | Pandas | DataFrame

Pandas DataFrame: replace all values in a column, based on condition

Replace Multiple Values in Several Columns of Data Frame in R (2 Examples) | sapply() & replace()

Return Data Frame Row Based On Value in Column in R (Example) | Extract Certain Rows Conditionally

R Basics: How to Use filter() to Select Rows Based on Column Values

Replace Entire Data Frame Column in R (2 Examples) | Exchange Variable | Substitute by New Values

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R : Sum (or not) a value based on condition of another column in R

Select Data Frame Columns by Logical Condition in R (Example) | grepl, select & starts_with of dplyr

Add New Variable to Data Frame Based On Other Columns in R (2 Examples) | $ Operator | transform()

Select Rows of pandas DataFrame by Condition in Python (4 Examples) | Range & Specific Set of Values

Delete Duplicate Rows Based On Column Values in R (Example) | Select Unique Row | Order Data Frame

How to Write a Function in R to Select Columns Based on a Sum Condition?

R : dplyr replacing na values in a column based on multiple conditions

Replace Values of pandas DataFrame in Python (Example) | Substitute & Exchange by Index & Condition

null handling by replacing with column value in another dataframe

How do I select rows from a DataFrame based on column values?

Replace Value of Data Frame Variable Using dplyr Package in R (Example) | mutate & replace Functions