Convert List to List model c#
as.list() function in R Programming Language is used to convert an object to a list. These objects can be Vectors, Matrices, Factors, and dataframes. Show
R – as.list() Function ExampleExample 1: Converting Vector to list using as.list() function in R Language
Output: [[1]] [1] 1 [[2]] [1] 2 [[3]] [1] 3 [[4]] [1] 4 [[5]] [1] 5Example 2: Converting data frame to list using as.list() function in R LanguageOutput: 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 $Time [1] 1 2 3 4 5 7 $demand [1] 8.3 10.3 19.0 16.0 15.6 19.8 attr(, "reference") [1] "A1.4, p. 270"Example 3: Converting matrix to list using as.list() function in R Language
Output: The 3x3 matrix: c d e a 1 2 3 b 4 5 6 c 7 8 9 [[1]] [1] 1 [[2]] [1] 4 [[3]] [1] 7 [[4]] [1] 2 [[5]] [1] 5 [[6]] [1] 8 [[7]] [1] 3 [[8]] [1] 6 [[9]] [1] 9Article Tags :
Collections.singletonList(object) method returns an immutable list containing only the specified object. The returned list is serializable. //Assuming that your object is a valid List object, you can use: Collections.singletonList(object) -- Returns an immutable list containing only the specified object. List Stream.collect(Collectors.toList()) can be used to collect Stream elements into a list. We can leverage this to convert object to a list. //If you want it in a specific datatype, use Stream.of(object):
List
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T Find(Predicate The first element that matches the conditions defined by the specified predicate, if found; otherwise, the default value for type T. The following example demonstrates the Find method on a List The following example demonstrates the find methods for the List The following table describes the examples provided for the find methods.
RemarksThe Predicate
Important When searching a list containing value types, make sure the default value for the type does not satisfy the search predicate. Otherwise, there is no way to distinguish between a default value indicating that no match was found and a list element that happens to have the default value for the type. If the default value satisfies the search predicate, use the FindIndex method instead. This method performs a linear search; therefore, this method is an O(n) operation, where n is Count. Applies to |