Learn how to filter Pandas dataframe using ‘in’ and ‘not in’ operators, similar to SQL. Master efficient data filtering techniques in Pandas for data analysis and manipulation.… Read More How to Filter Pandas Dataframe using ‘in’ and ‘not in’ like in SQL
Advertisements I have a Vector of players to be sorted by the following criteria: by championships (descending) by wins (descending) by name (ascending) I implemented it as follows in Rust: use std::cmp::Ordering; #[derive(Debug)] struct Player { name: String, championships: u8, wins: u8, } fn main() { let mut players = vec![ Player { name: "Alice".to_string(),… Read More Rust: `sort_by` multiple criteria, verbose pattern matching
Advertisements I take input string from user, match it with characters k,f or c. if anything else, returns "input k,f or c". How do i put "input k,f or c" in a loop so that when the user inputs correct string, i can extract value out of the loop. my code: (it compiles but not… Read More rust: how to bind match in a loop
Advertisements As a language that aims for safety and performance, Rust provides a powerful data structure called HashSet that provides a fast and efficient way to store and retrieve unique values. HashSet is optimized for scenarios where you need to check for the presence of a value and avoid duplicates, making it a popular choice… Read More How to apply function that returns Result to each element of HashSet in Rust
Advertisements i’m trying to replace a part of a string which is matched like in the following example: str1 <- "abc sdak+ 123+" I would like to replace all + that come after 3 numbers, but not in the case when a + is coming after characters. I tried like this, but this replaces the… Read More r – replace part of string after its matched
Advertisements I’m trying to write basic networking code in Rust, but running into an error I don’t understand. I have been using match statements to error check everything in Rust so far, but when I try to error check TcpStream::connect(), I get an unexpected error: My code: use std::net::TcpStream; fn main() { let mut server… Read More TcpStream::connect – match arms have incompatible type
Advertisements First line of the input contains an integer, N. Then N lines follow. From the second line onwards, each line contains a set of W words separated by a single space. For every line, Print (console.log()) 1 if the conversation starts with hackerrank Print 2 if the conversation ends with hackerrank Print 0 if… Read More Not expected .map()/.match(regex) output
Advertisements To elaborate I have a string x that will be in the structure of "Test_Case_Box 1" "Test_Case_Box 2" "Test_Case_Circle 1" I was using if and elif statements by checking for example if x[0:19] == "Test_Case_Box" With the match/case syntax if I set the term as my string x, can I still create if like… Read More Can I use list slicing on my match/case term in Python3
Advertisements I want to match everything between "02A1" and "03" IF its 14 characters in between those two. My RegEx Pattern looks like this: (02A1)[0-9A-Z]{14}(03) My problem: It also matches this: 02A103EEFFFFF702A103 What am i doing wrong? "EEFFFFF7" is clearly not between 02A1 und 03 as before the EEFFFFF7 theres a 03 and after it… Read More RegEx Match between beginning and ending problem
Advertisements I have a struct in which one of the fields is an enum, and when using a match statement there is a lot of repetition that feels avoidable. Basically what I have now is match self.foo // which is an enum, Foo { Foo::Bar => something, Foo::Bazz => something else, _ => you get… Read More How do I avoid syntax repitition when matching enums?
