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r - How to extract unique values within each row in dataframe? - Stack . . . How can I get unique values within each row in the dataframe? Base R option : Split the string on comma, keep unique values and paste the values into comma-separated string # customer fruit #1 joe orange, apple #2 jane NA #3 john apple #4 mary orange
How use dplyr distinct with exceptions, select unique rows in R Here are several examples of how to use dplyr distinct to select only unique rows in the data frame Examples starting with situations where you define columns used to get distinct rows and ending with dplyr distinct with exceptions
unique function - RDocumentation The array method calculates for each element of the dimension specified by MARGIN if the remaining dimensions are identical to those for an earlier element (in row-major order) This would most commonly be used for matrices to find unique rows (the default) or columns (with MARGIN = 2)
r - unique () for more than one variable - Stack Overflow I want to list unique (like SQL's DISTINCT) values for selected multiple variables For example, unique(yad) gives me the names of each 42 elements, but I need to extract two columns (yad and per together, with all unique combinations):
R: Extract Unique Elements For a data frame, a data frame is returned with the same columns but possibly fewer rows (and with row names from the first occurrences of the unique rows) A matrix or array is subsetted by [, drop = FALSE], so dimensions and dimnames are copied appropriately, and the result always has the same number of dimensions as x
Find Unique Values Rows in data. table in R (2 Examples) In this article, I’ll explain how to get unique rows or values from a data table object in R programming The article consists of two examples for the display of singular rows and values in a data table object