Programming Articles - Page 654 of 3363

To get the Least squares fit of Hermite_e series to data, use the hermite_e.hermfit() method in Python numpy. The method returns the Hermite_e coefficients ordered from low to high. If y was 2- D, the coefficients for the data in column k of y are in column k. The parameter, x are the xcoordinates of the M sample (data) points (x[i], y[i]).The parameter, y are the y-coordinates of the sample points. Several sets of sample points sharing the same x-coordinates can be (independently) fit with one call to polyfit by passing in for y a 2-D array that contains one ... Read More

To return the scaled companion matrix of a 1-D array of polynomial coefficients, return the hermite_e.hermecompanion() method in Python Numpy. The basis polynomials are scaled so that the companion matrix is symmetric when c is an Hermite_e basis polynomial. This provides better eigenvalue estimates than the unscaled case and for basis polynomials the eigenvalues are guaranteed to be real if numpy.linalg.eigvalsh is used to obtain them.The method returns the Scaled companion matrix of dimensions (deg, deg). The parameter, c is a 1- D array of Hermite series coefficients ordered from low to high degree.StepsAt first, import the required library −import ... Read More

Title() is a built-in function of strings package in Golang that is used to convert a string into Title Case. It converts the first character of each word in a given string into uppercase and returns the modified string.Syntaxfunc Title(s string) stringWhere s is the given string.Example 1Let us consider the following example −package main import (    "fmt"    "strings" ) func main() {    // Intializing the Strings    m := "title string function"    n := "Golang string package fUNCTION"    // Display the Strings    fmt.Println("String 1:", m)    fmt.Println("String 2:", n)    // ... Read More

strings.SplitAfter() is a built-in function in Golang that is used to break a string into a slice. SplitAfter is different from other Split functions. Here, we slice a given string into substrings after each instance of separators and it returns a slice of those substrings.Syntaxfunc SplitAfter(S String, sep string) []stringWhere s is the given string and sep is the separator string.Example 1Consider the following example −package main import (    "fmt"    "strings" ) func main() {    // Intializing the Strings    x := "Golang Program of SplitAfter Function"    y := "1.2.3.4.5.6.7.8"        // Display the ... Read More

strings.SplitN() is a built-in function in Golang that is used to split a given string into substrings by the given separator. It returns the slices of the substrings between those separators.Syntaxfunc SplitN(str, sep string, n int) []stringWhere, str is the given input string, sep is the separator string, andn defines the number of substrings that is to be returned.Example 1Consider the following example −package main import (    "fmt"    "strings" ) func main() {    // Intializing the Strings    p := "1, 2, 3, 4, 5, 6, 7"    q := "Welcome to Golang Programming Language"    r := ... Read More

strings.Split() is used to break a string into a list of substrings using a specified delimiter. It returns the substrings in the form of a slice.SyntaxThe syntax of strings.Split() is as follows −func Split(S string, sep string) []stringWhere s is the given string and sep is the delimiter (separator) string. It returns the substrings.Example 1Let us consider the following example −package main import (    "fmt"    "strings"    "regexp" ) func main() {    // Intializing the Strings    p := "oopsfunctions"    q := "GoLang language"    // Display the Strings    fmt.Println("String 1:", p)    fmt.Println("String ... Read More

strings.Repeat() is a built-in function in Golang that is used to repeat a string for a specified number of times. It returns a new string which consists of a new count of copies of the given string.SyntaxIts syntax is as follows −func Repeat(s string, count int) stringWhere s is the given string and count represents how many times you want to repeat the string. It returns a new string.Example 1The following example demonstrates how you can use the Repeat() function −package main import (    "fmt"    "strings" ) func main() {    // Initializing the Strings    x := ... Read More

LastIndex() is a built-in function of strings package in Golang. This function is used to check the index of the last occurrence of a specified substring in a given original string. If the substring is found in the given string, then it returns its index position, starting from 0; otherwise it returns "-1".SyntaxThe syntax of LastIndex() is −func LastIndex(str, substr string) intWhere, str is the string inside which we need to search, andsubstr is the substring that we want to search inside the str.Example 1Let us consider the following example −package main import (    "fmt"    "strings" ) func ... Read More

The simplest way to concatenate two strings in Golang is to use the "+" operator. For example, Example 1package main import (    "fmt" ) func main() {    str1 := "Hello..."    str2 := "How are you doing?"     fmt.Println("1st String:", str1)    fmt.Println("2nd String:", str2)    // Concatenate using the + Operator    fmt.Println("Concatenated String:", str1 + str2) }OutputIt will produce the following output1st String: Hello... 2nd String: How are you doing? Concatenated String: Hello...How are you doing?Concatenate using strings.Join()strings.Join() is a built-in function in Golang which is used to concatenate a slice ... Read More

IndexByte() is an inbuilt function of strings package in Golang. This function returns the index of the first occurrence of a character in a given string. If the character is found, then it returns its index, starting from 0; else it returns "-1".Syntaxfunc IndexByte(str string, chr byte) intWhere, str – It is the original string.chr – Character (byte) to be checked in the string.Example 1Let us consider the following example −package main import (    "fmt"    "strings" ) func main() {    // Initializing the Strings    m := "IndexByte String Function"    n := "Golang IndexByte String Package" ... Read More