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Converting strings to floats in a DataFrame
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NOTE: pd.convert_objects has now been deprecated. You should use pd.Series.astype(float) or pd.to_numeric as described in other
answers.
This is available in 0.11. Forces conversion (or set's to nan)
This will work even when astype will fail; its als...
How to implement a queue with three stacks?
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SUMMARY
O(1) algorithm is known for 6 stacks
O(1) algorithm is known for 3 stacks, but using lazy evaluation which in practice corresponds to having extra internal data structures, so it does not constitute a solution
People near Sedgewick have confirm...
How do I manage conflicts with git submodules?
... for the subby submodule, when you merge changes from master git does not know which ref - v1.0 or v1.1 - should be kept and tracked by the one.one branch of supery.
If that is the case, then you need to select the ref that you want and commit that change to resolve the conflict. Which is exactly w...
How to import existing Git repository into another?
... mentioned merging it into master, but didn't actually show it. Editing it now...
– ebneter
Feb 28 '13 at 2:26
2
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How to replace all occurrences of a string?
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Now from august 2020, you can use inbuilt replaceAll function, stackoverflow.com/a/63587267/8798220
– Nisharg Shah
Aug 25 at 21:22
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CSS3 selector :first-of-type with class name?
...in some discussions of the feature:
:nth-match(1 of p.myclass)
This has now been implemented in WebKit, and is thus available in Safari, but that appears to be the only browser that supports it. There are tickets filed for implementing it Blink (Chrome), Gecko (Firefox), and a request to implemen...
Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
...as df.drop(df[df.score < 50].index, inplace=True). Nevertheless didn't know the "index" trick. Helped me a lot
– Quickbeam2k1
Jun 8 '16 at 10:59
14
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Show Youtube video source into HTML5 video tag?
...6616c"></video>
Note there seems to some expire stuff. I don't know how long the src string will work.
Still testing myself.
Edit (July 28, 2011): Note that this video src is specific to the browser you use to retrieve the page source. I think Youtube generates this HTML dynamically (a...
Generate a random double in a range
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This question was asked before Java 7 release but now, there is another possible way using Java 7 (and above) API:
double random = ThreadLocalRandom.current().nextDouble(min, max);
nextDouble will return a pseudorandom double value between the minimum (inclusive) and the ...
Need some clarification about beta/alpha testing on the developer console
... many users can install the app.
4. Production - This is the last release, now everybody can install your app, can give reviews, can report to google play if something bad is there. One more thing, now your app appears in play store search listing.
Now there is one more thing, open testing, closed t...