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Background

I'm currently trying to implement a DDPG framework to control a simple car agent. At first, the car agent would only need to learn how to reach the end of a straight path as quickly as possible by adjusting its acceleration. This task was simple enough, so I decided to introduce an additional steering action as well. I updated my observation and action spaces accordingly.

The lines below are the for loop that runs each episode:

Given the xml:

The R/exams package supports including TikZ graphics using its function include_tikz(), e.g., as shown in the automaton and logic exercises shipped with the package.

After getting include_tikz() to work for these exercises (see: Why are TikZ graphics rendered with exams2pdf but not with exams2moodle?) I tried to create my own exercise. However, so far this does not work yet. My code is:

I have this function. I want to return in the form of (steering, throttle) for all the elements in the array vec_steering. In (steering, throttle) throttle value here is constant(1150) and steering changes according to sine curve equation.

I'm having trouble trying to understand why i cant get the mask collision to work. I'm trying to use a background image(Racetrack class) that has transparent areas the car object can 'drive' in. However i cant seem to get it to work. Collide function will only return none once the car has moved outside off the background image area. I've also tried placing the sprites into groups, but i couldn't get that to work either.

So I am trying to make a boids simulation. I am trying to implement the first rule which is that each boid must steer away from nearby boids. I have all boids in a std::vector called boids. Each boids has a std::vector called withinSensoryRange which holds all boids which are within the boids sensory range. The way I went about this is to calculate the closest boid in the withinSensoryRange vector for each boid and then try to steer away from that boid.

I would like to have a list of date every year from an end date spaced in given month amount. For example if my end is "20251220" and I have a paramter freq which steers the time step to go back. A value of 1 indicates yearly steps and a value of 12 indicates monthly backward steps. I would like to get the following list of dates for freq 1 it should "20211220","20221220","20231220","20241220" and for freq 2 "20211220","20220620","20221220","20230620""20231220","20240620","20241220","20250620". However, if it was "20250220" I only need "20220220","20230220","20240220" as we already passed February in the case for freq 1. I tried to a simple loop by myself (see below) where I then would check at then end if first date is in the past. But I think there must be a build in function to do this, via pandas or dateutil etc. See the similar question without the freq paramter

I have a loop. If a certain condition is true, I need to add an item to a vector. If it's false instead, I need to remove an item from the vector.

Here is my best attempt at reproducing what I am trying to do:

I am fairly new to Vaadin and to Java, so also the obvious tips could be beneficial.

In my view, I have 5 RadioGroupButtons (Vaadin's Standard). The major RGB changes the Item Text of the other four RGB. A real life example would be to select a car brand (VW, BMW, Kia) and for every Brand there would be different models.

I tried having the ClickListener inside the MainView, RBG and RBG_Aggregat. Also tried to pass the different RBGs as variables to the different classes. Nothing worked. There is not much documentation on these RadioButtonGroups. Now I have found some examples of "binder" but I could not manage to get it working.

Can anyone steer me in the right direction?

Thanks!!

The Code for the main View is the following: I added the comments where the problem is located.