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a<-sample(1:100,replace=T)
I would like to have an if condition that looks at a and if any of the elements of a satisfy the condition then it executes a command.
how can this be done?
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Using Count() The python list method count() returns count of how many times an element occurs in list. So if we have the same element repeated in the list then the length of the list using len() will be same as the number of times the element is present in the list using the count(). The below program uses this logic.
Method #1 : Using all() We can use all() , to perform this particular task. In this, we feed the condition and the validation with all the elements is checked by all() internally.
Method 2: Using all() function: Using all() function we can check if all values are greater than any given value in a single line. It returns true if the given condition inside the all() function is true for all values, else it returns false.
To check if the list contains an element in Python, use the “in” operator. The “in” operator checks if the list contains a specific item or not. It can also check if the element exists on the list or not using the list. count() function.
List comprehension just checks for any element that satisfies a condition. The original list : [4, 5, 8, 9, 10, 17] Does any element satisfy specified condition ? : True This the most generic method to solve this particular problem.
In order to check if any element in a Python list satisfies a given condition or not we will be using list comprehension and any () method. Let’s see these two methods one by one. This method uses list comprehension as shown below. We can also use a loop for this program but list comprehension is the shorter way of doing the same.
Quite often it is required to know whether elements of an array satisfy a given condition. A simple example could be checking if all elements of array are greater than 100, or at least one element is greater than 100.
Dart list provides two methods called any() and every() that can be used to solve this easily. We can also use a loop to do that. I will show you both of these approaches in this article i.e. by using a for in loop and by using inbuilt methods. Method 1: Check if any of the elements in a list satisfy a condition using loop:
Why not use any?
any(a > 100)
# FALSE
any(a > 50)
# TRUE
if (any(a > 50)) {
# do something ...
}
See ?any for details.
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