speedy | A fast binary serialization framework | Serialization library

I would like to extract the first observations of different groups from a dataframe. The number of observations comes from another dataframe.

Here is an example: In dataframe "x" there are different groups of animals with their names.

i need to draw a circle. it is probably simple and there may be tons of tutorials out there, but i cant find one for my spicific problem. i need to tell it to draw a circle from here:

I want to check that a range of cell are empty or has any values in them, I use this for loop :

This is based off a codepen that I am working on and I simplified the code to work with the specific part I need. I haven't worked with applyMatrix and Matrix4 before. For some reason the info from the part using these functions are showing up in my console and causing my browser to crash. I don't completely understand what is going on. I can guess that the values are being reassigned nonstop but I don't see a resolution to it in the codepen even though this issue isn't in it. Here is my code and the link to the codepen for reference. https://codepen.io/Mamboleoo/pen/Bppdda?editors=0010 This codepen is out of my league and I am trying to get a better grasp of it.

lately I've been trying to create a ping pong game with Pygame but I can't seem to figure out why? or how the ball started tracing when I made it a moving object in the game. how can I go about fixing this problem?

Json file

I have a time series DataFrame involving multiple groups with a 3-level hierarchy (i.e., 3 id columns), together with a date column and a value column. The code I wrote to group them and an example of the result is shown below:

I am trying to create an array of values using a for loop in JavaScript with multiple div id's with successive numbers (i.e. their values) denoting depth. The issue that I am running into is that I can't add the DOM element, i.e. 'text by ship here' successfully to the stage. I added // to show different sections where I am stuck. In particular, I believe I am stuck on the for loop part of the code below //Trying to create a div array here with id's q0, q1, q2, ..., q3 and have used different functions such as for div[0].setAttribute("id", "q0") to be able to connect it with the create.jsDOMElement to add this text to the stage. Any help would be extremely appreciated! My apologies in advance if the code is too long. I have tried to express it succinctly.

I'm recently trying to monitor transactions of a contract address on BSC chain for my dex limit order and I finally found a stable solution to monitor the log event -- 'using web sockect connection'.