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ExampleApproach to solve this problemStep 1 − Define a method that accepts the head of a linked list.Step 2 − If head == nil, return the head.Step 3 − Initialize the index as i := 0.Step 4 − Iterate the given linked list from its head.Step 5 − If index i matches with the given index (to be updated), then update that node.Step 6 − Else, return head.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value n.next = next ... Read More
ExamplesApproach to solve this problemStep 1 − Define a method that accepts head of the linked list.Step 2 − If head == nil, return the head.Step 3 − When index == 0, then return head.nextStep 4 − Else, Iterate given linked list from head.Step 5 − If index i matches with given index(to be delete) then delete that node.next, break the loop.Step 6 − Return, at the end of loop.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value n.next ... Read More
To calculate the z score for grouped data, we can use ave function and scale function. For example, if we have a data frame called df that contains a grouping coloumn say GROUP and a numerical column say Response then we can use the below command to calculate the z score for this data −ave(df$Response,df$GROUP,FUN=scale)ExampleConsider the below data frame −grp
ExamplesApproach to solve this problemStep 1 − Define a method that accepts the head of a linked list.Step 2 − If head == nil, create a new node and make it head and return it as the new head.Step 3 − When index == 0, then update the head.Step 4 − Iterate the given linked list from its head. Also, initialize preNode that will keep the store address of the previous node.Step 5 − If index i matches with the given index, then then delete that node.next, break the loop.Step 6 − Return, at the end of loop.Examplepackage main import ... Read More
ExamplesExampleApproach to solve this problempackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value n.next = next return &n } func TraverseLinkedList(head *Node){ temp := head for temp != nil { fmt.Printf("%d ", temp.value) temp = temp.next } fmt.Println() } func InsertNodeAtIthIndex(head *Node, index, data int) *Node{ if head == nil{ head = NewNode(data, nil) return head } if index ... Read More
To display tick marks on upper as well as right side of the plot, we can create duplicate axes for X as well Y by using scale_x_continuous and scale_y_continuous functions. The argument that will help us in this case is sec.axis and we need to set it to dup_axis as scale_x_continuous(sec.axis=dup_axis()) and scale_y_continuous(sec.axis=dup_axis()). Check out the below example to understand how it can be done.ExampleConsider the below data frame −x
A doubly linked list node contains three items, where two items point to the next and previous nodes, and the third item contains the value of that node.ExampleApproachStep 1 − Define a method that accepts the head of a doubly linked list.Step 2 − Initialize temp:=head.Step 3 − Iterate temp until it becomes nil.Step 4 − Print temp.value.Examplepackage main import "fmt" type Node struct { prev *Node value int next *Node } func CreateNewNode(value int) *Node{ var node Node node.next = nil node.value = value node.prev = nil return &node } func ... Read More
There are two easy methods to select columns of an R data frame without missing values, first one results in a vector and other returns a matrix. For example, if we have a data frame called df then the first method can be used as df[,colSums(is.na(df))==0] and the second method will be used as t(na.omit(t(df))).ExampleConsider the below data frame −df1
ExampleApproachAsk the user to enter the size of array.Make an integer array of given size.Ask the user to enter elements.At the end, print the array.Examplepackage main import ( "fmt" ) func main(){ fmt.Printf("Enter size of your array: ") var size int fmt.Scanln(&size) var arr = make([]int, size) for i:=0; i
To display mean in a boxplot with cross sign in base R, we can use the points function and pass the mean with pch = 4 that represents a star, also we can change the color to highlight the mean using col argument and the size of the start can be changed using lwd argument as shown in the below examples.Examplex