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I want a thing that can plot a numerical array as a line graph of data points. A histogram and a scatter plot would be nice, too. And I don't mean for computat

I want a thing that can plot a numerical array as a line graph of data points. A histogram and a scatter plot would be nice, too. And I don't mean for computational/data science exploring, I've got numpy/matplotlib for that. But really as a debugging tool in the browser's dev console. It's not uncommon that I have an array of numbers (or something that looks like one), a few hundred or more. Finding the bug or unexpected behaviour in my program is often about finding the numbers in such a list that "stand out" in some way. Now I could specify and filter those elements that "stand out", but I could also plot a graph and grasp its behaviour in a single glance. Just dumping the numbers to the console and hunting for aberrant behaviour likely takes me out of my flow, where a graph would not.

TeMPOraL 8y ago
Yup. This is something I'd love to have too - in particular, point/line plots and scatterplots at resolution greater than possible in text-only terminals. I already render text-based histograms when I need. Come to think of it, it shouldn't be hard to extend Emacs to eat specially prefixed output (e.g. #<scatterplot: (1 2) (3 4)...>), feed the data to external program and place a rendered chart inline. I might pick it up as a small project. Thanks!