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I am trying to define a data structure with these characteristics:

1. It is a rose tree
2. The nodes in the tree are of variable sort
3. The only difference between the sorts of node is a constraint on the number of children they may take
4. The complete set of constraints is: None; OneOnly; TwoOnly; AtLeastOne; AtLeastTwo
5. I want the relevant constraint to be type checkable and checked. (Eg when building, or editing the tree, trying to add a second child to IamJustOne :: OneOnly is an error)

I am having difficulty getting started defining this structure (especially points 3-5).

1. There is information on the web on the steps needed to define a rose tree.
2. There is information in Data.Tree.Rose sufficient to create a rose tree with variable nodes. (Though I am still not clear on the distinction in that module between Knuth trees, and Knuth forests.)
3. There are research level papers on heterogeneous containers well above my comprehension grade

My initial approach was to attempt to create subtypes of MyRose (not working code) as:

I'm analysing a data set with the weight of newborn babies and some info about their mothers, including a categorical variable 'smoke' - whether a mother is a smoker, or not.

I did an aov test and wanted to plot diagnostic plots of an ANOVA model with its help. I expected to get four plots, including a 'Residuals vs Factor Levels' plot. Instead, I got a 'Residuals vs Leverage' plot, as if my categorical variable was a numeric one.

You can find the dataset here: https://drive.google.com/file/d/1VwiAHdYZF2BrGZZ875GGdkyamKMgxmGU/view?usp=sharing

In there variable 'smoke' has values 0 (non-smoker) and 1 (smoker). I used mutate to change it into a proper factor (among others, like parity), then made the aov test itself and tried to plot the results, to verify the assumptions. Below you can find my code:

I have 13 lists and a dictionary that changes based on the user inputs, the dictionary selects lists from the 13 lists their names are key, and their values are the values of the lists, it changes based on the user inputs so it might have 1,2,3,4,5,.... lists but it is impossible to be 13 max is 11 or 9 I think,

what I want is to change this dictionary into sets or lists with different names than the ones I predefiend these lists names are (key + random number or something) and have the same value as a dictionary and I can't use the name of the key because it is random and changes based on the user inputs that's why I was trying to somehow index it or change it to list or sets to work with it

Let me explain in detail:

Alright so I have the following Functions

I was using this code to plot all data in my df:

Short version: I have a component type (a class or a function) and props for it. I need to "render" the component to obtain its representation in JSX elements. (I use the quotes because I mean «render into JSX elements» not «render into UI» and I am not sure about the terminology.)

Example:

I'm building a .net5 application to scrape RSS feeds and I would like to avoid custom string parsing logic. Instead I would like to directly serialize the XML in c# objects. I've previously done this once and I used xsd.exe to generade schema file and then .cs file from that. However that's not working this time. Here's what I am trying to scrape

I've got a combo carousel that's mostly working. Basically, I'm using this as a timeline slider. I have 14 dates to display. In addition to thumbnails/indicators, I'm using dates. But because there are so many dates, I need them to display in separate rows, but with only the active row at a time. I'm hoping my code makes it clear what I'm trying to achieve. I had a version that worked in BS 3 at one time, but that page appears to be dead so I can't see what I did. I only remember that I did basically what's shown here. When you click the arrow for the next page of thumbnails, the previous ones slide in behind the new ones for some reason. Also, I can't seem to figure out how to add "shown" to the thumbnail that's currently targeted in the first carousel. I know is off, probably in the math. I pulled it from somewhere - can't remember where.

So i'm trying to get "promo_type" value from mysql table to excel. However i need to use another table in order to get the value of this "promo_type".

So this is the main table booking, which contains the value of the promo code. Like shown below a user has a promo code of "1000". Booking Table

Now in this other table, this is where the promo codes are made and saved.

Promo Code table

But i need to access the "promo_type" variable to be able to export it to excel. How can i do this? I was thinking of seleting the value of the promo code from the booking table and comparing it to the promo code table and then seleting the "promo_type" column. But i have no idea how to translate this to query builder syntax.

This is the code im using to export the data to excel. So i need to return it in a suitable way in order to export the value to excel.

I'm following a tutorial from Julia Silge (link here) on using tidymodels and recipes. I can get most of the way through without a problem but when I come to calling the fit_resamples() function I get the error: Error: The first argument to [fit_resamples()] should be either a model or workflow.

I'm copying the code in the tutorial character for character, and everything runs fine up to and including printing out validation_splits. But as soon as I call fit_resamples() I get the error above (link to relevant part of tutorial). If useful, the output of rlang::last_error() is: