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I have a dataframe on which I use psych::alpha. In the output there are general confidence boundaries around a general cronbach's alpha value. I want to access those but they don't appear in the results when I save the output as a variable. In the documentation they're called itemboot.ci but that doesn't exist in the alpha object.enter code here

I am trying to create a class for calibrating a classifier. I have been reading resources on probability calibration and I am a bit confused on which dataset should we calibrate the classifier. I created a class that split the training set to further train and validation the set. Then, the classifier is first fitted to the train set and predicts the uncalibrated probability on the validation set.

Then, I create a cal_model instance of the CalibrationCV class and then fit it to the validation set and predict calibrated probabilities of the validation set again.

Could someone take a look at the code below and correct the code for me?

So i have this nodejs that was originaly used as api to crawl data using puppeteer from a website based on a schedule, now to check if there is a schedule i used a function that link to a model query and check if there are any schedule at the moment. It seems to work and i get the data, but when i was crawling the second article and the next there is always this error UnhandledPromiseRejectionWarning: Error: Request is already handled! and followed by UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). and it seems to take a lot of resource from the cpu and memory. So my question is, is there any blocking in my code or anything that could have done better.

this is my server.js

I have a use case for which QLDB makes the most sense. I also think the Outbox pattern makes sense for data reliability. However, I am worried about polluting the Journal with the outbox entries.

My understanding is that while I can have my 'outbox' table separate from my main data table, the journal is shared across the entire ledger. It seems that the outbox pattern traditionally uses a relational DB where the concept of an immutable journal just isn't a concern.

Is this going to be a problem as the data set grows? More so, is there an alternate pattern that would make more sense to use?

I'm working on a small project to learn puppeteer and discord bots, thought it would be interesting to combine the two and make a weird cyborg bot thing that is essentially a bot but a normal user. I've set up the command handlers, etc, and I've created an 'invite' command that takes one of the arguments that the person provides (the code of the server invite) and uses it to auto-invite itself.

for example typing in discord: invite 78uHjkaf

This semi-works. Not really. It'll work the first time, but never again and I'll have to restart the thing. I keep trying to add a page.close(); hoping that it will solve the problem but then it won't work at all. How can I make this work consistently and reusably? - Note that my command handler works fine. The entire issue is located within the following code. (I hope)

Semi reliable.

I have my own FIFO class that works OK, but I'd like to extend its flexibility.

Right now, the data struct that goes in the FIFO is defined in the FIFO class, so every FIFO object has the same data struct.

It would be nice if every object could define its own FIFO struct and pass it to the FIFO class. The FIFO class shouldn't care what the structure looks like, it just queues and enqueues whatever struct got passed to the FIFO constructor. This is actually well beyond my current skill set, but I thought with a little help, maybe I could pull it off.

Here's a simple example of what I'm trying to do that I haven't been able to compile:

When trying to send my app to app store, I'm receiving the following message: ITMS-90809: Deprecated API Usage - New apps that use UIWebView are no longer accepted. Instead, use WKWebView for improved security and reliability. Learn more (https://developer.apple.com/documentation/uikit/uiwebview).

But my simulator log shows

I'm trying to create a matrix to eventually run inter-rater reliability. I am trying to populate a matrix with TRUE and FALSE (or 1/0) based on whether a string is present in a row with a matching ID in a second or third matrix. I've included what that should look like at the bottom.

Below is my reproducible example, including the two existing matrices and what I've tried so far to produce the final matrix I want. I was able to get it to the point where I can confirm I'm selecting the correct columns that match the matrix I'm wanting to match (see output with "m1" in all columns that have "m1" in the column name). I haven't figured out how to get to the next stage of properly matching the id column between m1.mat and the final matrix, reliability.ex. In excel this would be something like a VLOOKUP, but when I search for VLOOKUP equivalents in R, I just get join/merge functions, which I don't think will work for what I need, but maybe I'm wrong. I tried doing all this in excel but ultimately got stuck and would rather have it in R if possible anyway.