How to Get Length of a Vector in R


How to Get Length of a Vector in R ?

Answer

To get the length of a vector in R, you can use the length function.



✐ Examples

1 Get Length of a Numeric Vector

In this example,

  1. We first create a numeric vector named num_vector with a set of numeric values using the c function, which combines the values into a vector.
  2. We use the length function to determine the number of elements in num_vector. The length function takes a vector as its argument and returns the number of elements in that vector.
  3. We assign the result of the length function to a variable named num_vector_length.
  4. Finally, we print the length of the vector using the print function to display the value of num_vector_length on the console.

R Program

num_vector <- c(10, 20, 30, 40, 50)
num_vector_length <- length(num_vector)
print(num_vector_length)

Output

[1] 5

2 Get Length of a Character Vector

In this example,

  1. We first create a character vector named char_vector with a set of string values using the c function, which combines the string values into a vector.
  2. We use the length function to determine the number of elements in char_vector. The length function takes a vector as its argument and returns the number of elements in that vector.
  3. We assign the result of the length function to a variable named char_vector_length.
  4. Finally, we print the length of the vector using the print function to display the value of char_vector_length on the console.

R Program

char_vector <- c("apple", "banana", "cherry")
char_vector_length <- length(char_vector)
print(char_vector_length)

Output

[1] 3

Summary

In this tutorial, we learned How to Get Length of a Vector in R language with well detailed examples.




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  2. How to Initialize a Vector in R ?
  3. How to Get Length of a Vector in R ?
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  13. How to Iterate Over a Vector in R ?
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  27. How to Sort a Vector in Descending Order in R ?
  28. How to create a Two Dimensional Vector in R ?
  29. How to Iterate over a Two Dimensional Vector in R ?
  30. How to create a Three Dimensional Vector in R ?
  31. How to Copy a Vector in R ?
  32. How to Split a Vector in R ?
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  34. How to Append an Item to a Vector in R ?
  35. How to Insert an Item at Specific Index in a Vector in R ?
  36. How to Append a Vector to another Vector in R ?
  37. How to Concatenate Two Vectors in R ?
  38. How to check if Two Vectors are Equal in R ?
  39. How to check if Two Vectors have Same Items (Regardless of Order) in R ?
  40. How to Convert a Vector of Integers to a Vector of Strings in R ?
  41. How to Convert a Vector of Strings to a Vector of Integers in R ?
  42. How to Convert a Vector of Floats to a Vector of Strings in R ?
  43. How to Convert a Vector of Strings to a Vector of Floats in R ?
  44. How to Reverse a Vector in R ?
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  46. How to Slice a Vector in R ?
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  48. How to get Last N Items from a Vector in R ?
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  50. How to Filter Items of a Vector based on a Condition in R ?
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  52. How to Remove Item at a Specific Index from a Vector in R ?
  53. How to Remove Specific Item from a Vector in R ?
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