I have no idea what's wrong. Please help! ERROR: UndefVarError: i not defined

[kristoffer.carlsson]

Please see:

PSA: how to quote code with backticks

This is a short post on using backticks (` and ```) to quote code, with the intention of benefiting users who are confused by this feature of the site. The intention is to make it linkable when necessary. Why By quoting your code, you get a monospaced font (which preserves indentation) and syntax highlighting. This helps people who read your code and want to help you. Displayed code looks like this: function displayed_code(x::Int, y::Int) if x < y println("x is smaller") else …

and

Please read: make it easier to help you

Welcome to the Julia Discourse! We are enthusiastic about helping Julia programmers, both beginner and experienced. This public service announcement (PSA) outlines best practices when asking for help. Following these points makes it easier for us to help you and more likely you’ll get a prompt, useful answer. Keywords are highlighted to make it easier to refer to specific points. Choose a descriptive title that captures the key part of your question, eg “plots with multiple axes” instead of …