Problem with type mismatch -- MethodError: no method matching

[rdeits]

When you declare a function with keyword arguments like this:

function foo(x; y = 10)
end

then you must provide the keywords when you call the function:

foo(1, y = 2)  # NOT: foo(1, 2)

By the way, it will be easier to read your code (and help you) if you format it correctly with backticks:

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 …