which() function in R Language is used to return the indices of the object which return true for the logical operation passed as argument.
Syntax: which(x, arr.ind)
x: logical object
arr.ind: Boolean value to display indices
[, 1] [, 2] [, 3] [1, ] 1 4 7 [2, ] 2 5 8 [3, ] 3 6 9 row col [1, ] 2 1 [2, ] 1 2 [3, ] 3 2 [4, ] 2 3
Here, in the above code, the
which() function returns the indices of all the even numbers present in the matrix.
Time demand 1 1 8.3 2 2 10.3 3 3 19.0 4 4 16.0 5 5 15.6 6 7 19.8  3
- Return a Matrix with Lower Triangle as TRUE values in R Programming - lower.tri() Function
- Return a Matrix with Upper Triangle as TRUE values in R Programming - upper.tri() Function
- Check if a value or a logical expression is TRUE in R Programming - isTRUE() Function
- Convert values of an Object to Logical Vector in R Programming - as.logical() Function
- Return a Logical Vector with Missing Values removed in R Programming - complete.cases() Function
- Check whether a value is logical or not in R Programming - is.logical() Function
- Return an Object with the specified name in R Programming - get0() and mget() Function
- Search and Return an Object with the specified name in R Programming - get() Function
- Check if values in a vector are True or not in R Programming - all() and any() Function
- Return the Index of the First Minimum Value of a Numeric Vector in R Programming - which.min() Function
- Return the Index of the First Maximum Value of a Numeric Vector in R Programming - which.max() Function
- Get Indices of Specified Values of an Array in R Programming - arrayInd() Function
- Applying a Function over an Object in R Programming - sapply() Function
- Print the Value of an Object in R Programming - identity() Function
- Convert type of data object in R Programming - type.convert() Function
- Create an Object of mode call in R Programming - call() Function
- Calculate Cumulative Product of a Numeric Object in R Programming – cumprod() Function
- Check if Object is of the Character Data type in R Programming - is.character() Function
- Get the number of columns of an Object in R Programming - ncol() Function
- Checking if the Object is a Factor in R Programming - is.factor() Function
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