• Meanwhile, I'm still on day 2, getting bogged down in pandas, trying to understand why I can't use an operator on an array (to be honest, I don;t even know if I'm using the right language to describe what I'm trying to do).

    For some reason, I'm trying to avoid iterating through line by line, and hoping / expecting there's a way to do it with a vector operation (again - not sure if I'm using the right words to describe what I'm trying to do).

    Still - I have now learned about lambdas

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