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Possible to make labels appear when hovering over a point in matplotlib?
...ile searching here is the annotate command, but that appears to create a fixed label on the plot. Unfortunately, with the number of points that I have, the scatter plot would be unreadable if I labeled each point. Does anyone know of a way to create labels that only appear when the cursor hovers in ...
How to normalize a NumPy array to within a certain range?
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audio /= np.max(np.abs(audio),axis=0)
image *= (255.0/image.max())
Using /= and *= allows you to eliminate an intermediate temporary array, thus saving some memory. Multiplication is less expensive than division, so
image *= 255.0/ima...
Check if list contains any of another list
...check which is available on any Enumerable:
bool hasMatch = myStrings.Any(x => parameters.Any(y => y.source == x));
Faster performing on larger collections would be to project parameters to source and then use Intersect which internally uses a HashSet<T> so instead of O(n^2) for the f...
How do I tell matplotlib that I am done with a plot?
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You can use figure to create a new plot, for example, or use close after the first plot.
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What does the star operator mean, in a function call?
What does the * operator mean in Python, such as in code like zip(*x) or f(**k) ?
5 Answers
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Getting only response header from HTTP POST using curl
...as moved to a different location (indicated with a Location: header and a 3XX response
code), this option will make curl redo the request on the new place. If used together with -i/--include or -I/--head, headers from all requested
pages will be shown. When authentication is used, ...
Adding placeholder text to textbox
I am looking for a way to add placeholder text to a textbox like you can with a textbox in html5.
24 Answers
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Can someone explain the traverse function in Haskell?
...its point. Since I come from an imperative background, can someone please explain it to me in terms of an imperative loop? Pseudo-code would be much appreciated. Thanks.
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Proper MIME type for OTF fonts
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Works for me in Chrome 22 and Firefox 15 (Mac), on both SVG and WOFF inlined fonts.
– Zeke
Oct 10 '12 at 6:59
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Haskell error parse error on input `='
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In GHCi 7.x or below, you need a let to define things in it.
Prelude> let f x = x * 2
Prelude> f 4
8
Starting from GHC 8.0.1, top-level bindings are supported in GHCi, so OP's code will work without change.
GHCi, version 8.0....