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Vor 2 Tagen · The %in% operator in R is used to check if the values of the first argument are present in the second argument and return a logical vector indicating if there is a match or not for its left operand. Here, the first and second arguments can be a value, vector, list, or sequence.
Vor 4 Tagen · To select columns of the R data frame you can use the %>% operator and select() function of the dplyr package. %>% operator is the pipe operator, which is used to implement multiple operations sequentially. When we use dplyr package, we mostly use the Infix operator %>% from magrittr.
Vor einem Tag · Thus, the following operation was performed: 1 + 4 + 2 + 3 + 7 = 17. Note that we could also define a more complex function to pass to the reduce() function if we would like. For example, we could define a function that allows us to concatenate each of the values together in the vector, using a dash as a separator:
Vor 3 Tagen · Use mutate() and its other verbs mutate_all(), mutate_if() and mutate_at() from R dplyr package to replace/update the values of the column (string, integer, or any type) in data frame (data.frame). For more methods of this package refer to the R dplyr tutorial.
Vor 6 Tagen · The three most commonly used operators are AND, OR, NOT. These are known as Boolean operators. They can be used to broaden or narrow a search and to exclude unwanted search terms and concepts.
Vor einem Tag · Create an Inclusion Search Operator Description. Constructs an InOperator object for search operations where the attribute value must be within a specified set. Usage InOperator(attribute, value) Arguments. attribute: The attribute to be ...
Vor 5 Tagen · Execute an R script from command-line (the first of the three options is preferred) $ Rscript my_script.R $ R CMD BATCH my_script.R $ R --slave < my_script.R Data Types Numeric data. Example: 1, 2, 3, ... x <- c(1, 2, 3) x ## [1] 1 2 3 is.numeric(x) ## [1] TRUE as.character(x) ## [1] "1" "2" "3" Character data. Example: "a", "b", "c
