What is the cummax() function in R?
Which
Overview
The cummax() function in R obtains the vector's maximum for each index in the vector starting from the beginning of the vector up to the current index.
Syntax
Here is the syntax of the cummax() method:
cunmax(x)
The syntax for the cummax() function
Parameter value
The cummax() function takes a single parameter value, x, which represents a numerical or integer vector.
Example
This is the code for the cummax()method:
# implementing the cummax() functioncummax(1:10)cummax(c(1, 3, 4, 5, 3, 2, 5, 1, 7, 8, 8, 6))cummax(c(3, 2, 4, 6, 2, 6, 7, 1, 6, 8, 1, 2))cummax(c(20, 10, 5, 30, 50, 60, 15, 15))
Explanation
- Line 2: We implement the
cummax()to return a vector object where its maximum elements should start with1. This is because1is the element in the vector object's first index. - Line 3: We implement the
cummax()function to return a vector object where its maximum elements should start with1. This is because1is the element in the vector object's first index. - Line 4: We implement the
cummax()function to return a vector object where its maximum elements should start with3. This is because3is the element in the vector object's first index.
- Line 5: We implement the
cummax()function to return a vector object where its maximum elements should start with20. This is because20is the element in the vector object's first index.
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