jEN | the java client for The Echo Nest API

I should retrieve the IDs and names of ingredients that are not contained by any ice cream and then sort the output rows in ascending order by ingredient ID. I don't quite understand how JOIN -operation works in this exercise.

I tried e.g. the following but it gives too many rows in the output.

I have an object (not an array):

CONTEXT:

I have a DataFrame with a column and a function that duplicates a row based on the number in the column "count". My current method is very slow when working with larger datasets:

Say I have the following dataframe (Duplicate ID 1 and 3):

I have a very big text (.sql) file, and I want to get all the links out of it in a nice clean text file, where the link are all one in each line.

I have found the following command grep -Eo "https?://\S+?\.html" filename.txt > newFile.txt from anubhava, which nearly works for me, link: Extract all URLs that start with http or https and end with html from text file

Unfortunately, it does not quite work: Problem 1: In the above link, the webpages end with .html. Not so in my case. They do not have a common ending, so I just have to finish before the second ' symbol.

Problem 2: I do not want it to copy the ' symbol.

To give an example, (cause, I think I explain rather bad here):

Say, my file says things like this:

Not him old music think his found enjoy merry. Listening acuteness dependent at or an. 'https://I_want_this' Apartments thoroughly unsatiable terminated sex how themselves. She are ten hours wrong walls stand early. 'https://I_want_this_too'. Domestic perceive on an ladyship extended received do. Why jennings our whatever his learning gay perceive. Is against no he without subject. Bed connection unreserved preference partiality not unaffected. Years merit trees so think in hoped we as.

I would want

I am fairly new to programming and recently started working with dictionaries and a problem I am trying asks for me to create a list of names to take a poll. 2 names must not be in the dictionary while 2 more are in it. The code:

I have loaded some JSON API data as a Pandas dataframe, as such, there are some columns that come out as lists. I also have some NaN values.

First and foremost I want to replace the NaN with a single word such as 'empty' but the rest of the data are already in list forms. I want to ultimately create a new column that operates on this list structure and essentially turns it into a string since I will be using the strings to perform mapping logic later on.

Here is some sample data and logic:

I'm working on Laravel Framework 8.73.2 project with mysql Ver 8.0.26-0ubuntu0.20.04.3 for Linux on x86_64 ((Ubuntu)).

I'm getting wrong data from the database when using the offset condition. On the third data request I get unique data, but on the fourth data request I get repeated data

third data request, offset = 20

C allows three different sign representations:

• Sign and magnitude

• Ones’ complement

• Two’s complement

The first two nowadays probably only have historical or exotic relevance: for sign and magnitude, the magnitude is taken as positive values, and the sign bit simply specifies that there is a minus sign. Ones’ complement takes the corresponding positive value and complements all bits. Both representations have the disadvantage that two values evaluate to 0: there is a positive and a negative 0.

Source: Modern C, Jens Gustedt

Question: What's wrong with "two values evaluating to zero" according to the last statement (in bold)?