Advertisements I have a list with multiple squared dataframes each representing the economy of a country. I would like to combine all the dataframes in a single dataframe with the data of each country on the diagonal cells corresponding to the same column and row names. Here is a toy setup: # toy IO df1… Read More How to combine multiple datafrmes by rows and columns?
Advertisements I have now spent more than a few hours on this issue and I felt that it was time to reach out for some assistance because clearly I am missing some fundamental concepts about JSON schema validation that I thought I understood. Here’s some JSON that I actually expect not to pass the validation… Read More Confusion over some JSON Schema Validation
Advertisements I have some C code that is supposed to generate a password and save it to a file. I tried to enter a length that would be about 10 gb (absurdly big but I wanted to see how fast it could do it), and it didn’t stop at 10 gb. #define _FILE_OFFSET_BITS 64 #include… Read More Writing doesn't stop for files above ~2gb in C
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
Learn how to calculate the check digit according to ISO 6346 for shipping containers. Prevent errors in tracking and documentation with this simple algorithm.… Read More JavaScript : How to Calculate the Check Digit according to ISO 6346
Advertisements I have a function that reads a file line by line and returns it as a list of the words. Since the file is very large, i would like to make it a generator. Here is the function: def tokenize_each_line(file): with open(file, ‘r’) as f: for line in f: yield line.split() However, everytime i… Read More Generator always returning same value
Advertisements How to Build a Relevant Auto Generating Tags Recommendation Model in Python One of the most important features of any blog or website is its ability to recommend relevant tags to users. This not only helps users find related content easily, but it also improves the overall user experience. In this blog post, we’ll… Read More How to build relevant auto generating tags recommendation model in python
Advertisements I don’t know if this has been asked before, but I haven’t got anywhere from Googling. I want to have the following code’s equivalent in Haskell: def inputThing(string: str) -> bool: a=input("Input: ") if a=="Hello": return True else: print("Not hello") return False What I came up with is something like this: import System.IO (… Read More How do I compare an IO String with a String, print a message if false, and return the value?
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 have a node.js process which has several entry points, including a tcp server, websocket server, and named pipe server. I am wondering if any interactions with these connections will be blocking. Example: for a given connection, if there isnt anything in the buffer because the client didnt send anything yet, will this block… Read More In Node.js, is writing to a TCP connection blocking?
