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Mastering Development

Should I call Axios in each component on a page or multiple times on the parent page for each component?

I’m looking to understand what is the best practice when it comes to utilizing Axios to fetch data from Node.js. I have multiple graphs, cards and other components on the given page and am trying to understand if I should be calling Axios on the parent page for each component and passing the values as […]

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Artificial Intelligence (AI) Mastering Development

What is the Preferred Mathematical Representation for a Forward Pass in a Neural Network?

I know this may be a question of semantics but I always see different articles explain forward pass slightly different. e.g. Sometimes they represent a forward pass to a hidden layer in a standard neural network as np.dot(x, W) and sometimes I see it as np.dot(W.T, x) and sometimes np.dot(W, x). Take this image for […]

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Mastering Development

Number is not added at back of existing array

Learning about Arrays. I am not able to figure out why a new number is not added to the back of my existing array. I read in two textfiles in file_1.txt are the numbers ‘1 2 3′ and in file_2.txt is the number ’91’. Basically without the method of Void addBack() the program does what […]

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Artificial Intelligence (AI) Mastering Development

How do I make an AI the official way?

Let me explain. So, there are many ways to make an AI. I want to make one on Node.js localhost that will take some input, and output the result it evaluates. Before you comment saying "you can just code it", I want it to compare the input to everything in a set of one thing […]

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Mastering Development

Receiving and appending PHP data using jquery ajax function into anychart

I am using AnyChart to post data from my DB. I am trying to get the last entry and update it on the chart using an ajax function so the chart streams live data. When I call the ajax function how can I append the PHP data to the chart using the ajax function with […]

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Mastering Development

RShiny: Refer to data from UI in server

Example Case: I have a function in my global.R called get_data which returns a list of many items. The reason I don’t just put the data in global is so the data can automatically refresh after a certain amount of time ui.R my_data <- uiOutput("data") # Doesn’t work ### Some more generic manipulation before final […]

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Mastering Development

Legendre Polynomials Python

I am trying to calculate the 720th Legendre polynomial with scipy: >>>from scipy.special import legendre >>>print(legendre(720)) it prints the powers correctly but returns NAN for the coefficients how can I fix this?

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Mastering Development

Python string to json with escaping double quotes

I have a string that I need to be converted to json. It has the following structure: [{"name": "Karolina", "company": "Shop "Karolina""}] As you can see there can be double quotes inside the string that should be escaped while converting. How can I convert this string to json?

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Mastering Development

Multiple Unexplained Error Messages using AVAudioRecorder

I’m working on a project for a class (I’m learning Swift/iOS) in which I have to use AVAudioRecorder, and I am getting the following error messages in the debug panel upon running my app (though the app is building successfully): 2020-08-09 20:28:41.073178+0200 MyAppName[49311:2895565] [plugin] AddInstanceForFactory: No factory registered for id <CFUUID 0x600002409fe0> F8BB1C28-BAE8-11D6-9C31-00039315CD46 2020-08-09 20:28:41.165556+0200 […]

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Mastering Development

(Laravel) Multiple counts, group by on same table with one query

I have two tables. I would like to get the values of the counts of these two rows (attacker, victim) from the first table and their respective userid from the second table, if possible. Table1: id—-attacker—victim 1—–1216——-1040 1—–1216——-1024 1—–1040——-1024 1—–1040——-1024 1—–1024——-1216 1—–1216——-1024 Table2: id—-name—-userid 1—–John—-1216 2—–Joe—–1024 3—–Peter—1040 So far I only managed to get the […]