monarch | A barebones utility for metamorphic testing in Rust

pic of environment

I am attempting to make a new dataset from my original monarch.data df that consists of all variables for just three milkweed species (Milkweed_species).

I have a table with the birth and death of several europe monarchs, the table doesn't have have an age column and i have to add it. There are also several null and 'None' values, in that case the age column should display unknow.

the following code gives me a invalid input syntax for type double precision error.

I have the below attached object it has three properties Titles,pagesids & snippets , using for loop how can I add the values of properties one below the other in html like

I'm trying out monaco editor and I'm having real difficulty understanding how to create my own rule for syntax highlighting. (I'd really appreciate it if you had a resource that explains how to create rules)

I'm starting with the simple stuff:

• I'd like to add a special color for my variable at declaration. ie: a = 12, having color on a
• Add a special color for builtins functions. ie: builtin(a, b), having color on builtin

I'm using https://microsoft.github.io/monaco-editor/monarch.html to try the rule in real-time here is my syntax definition

I wanted to do a simple script that calculates the number of certain actions in the game . The game has an api that is limited to 100 results per request, that is why they have unix timestamps if you want to go further and keep searching in a loop,the issue is that i take all 100 timestamps from the results add them to a list and sort them to take the last one and use it in the next request until there are no more results, but using the code below 1- The code doesn't exit 2- After debugging the code the code changes the timestamp only once

I want to do LDA (linear discriminant analysis) with the Auto dataset of the ISLR package. To start off, I am trying to take the cars with year = 75 and use it as a "test set", where cars of all other years will be used as a "training set". However, it seems that I've made a mess of things. For instance, in my code below, sequentially using the replace function for the values of mpg.year75 just results in everything being set to high:

I am trying to use the rename() function of the dplyr package to change the variable mpg to mpgclass:

If I produce a JSON within Monarch for my new language syntax and I wish to use it in my Monaco editor, how can I do that? Is there a way to load this JSON? I guess there is a function which I can call to add this JSON as a language but I'm finding it difficult work out how where it is. My thinking is that it should be step by step a) make Monarch JSON b) use some Monaco API to load it and c) See it working.

Monarch here

https://microsoft.github.io/monaco-editor/monarch.html

Monaco Editor here

https://microsoft.github.io/monaco-editor/

Imagine I have a collection of books in Core Data. Each book can have multiple authors. Here's what this imaginary collection of books could look like (it only has one book, just to simplify things):