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Sample random rows in dataframe
....g. in machine learning when you have to do a certain split ratio like 80%:20%
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CSS strikethrough different color from text?
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And 3 years later...Firefox and Safari have it = 20% of reach.
– André Werlang
Mar 23 '15 at 15:02
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How would you go about parsing Markdown? [closed]
...68 SLOC for the parser, 43 SLOC for the HTML emitter), yet blazingly fast (20% faster than discount (written in hand-optimized C) and sixhundred times faster than BlueCloth (Ruby)), despite the fact that it isn't even optimized for performance yet. Because it is only intended for internal use by Mau...
Alternatives to gprof [closed]
...es have to be frequent in order to hit it. But, if the problem is costing, 20%, say, out of a total running time of 10 sec (or whatever), then each sample in that total time will have a 20% chance of hitting it, no matter if the problem occurs in a single piece like this
.....XXXXXXXX..................
Convert a list of characters into a string
...performance of this line counts in my program, the result shows it's about 20% faster then ''.join(['a','b','c'])
– bigeagle
Apr 8 '12 at 7:05
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is_null($x) vs $x === null in PHP [duplicate]
... Program execution time tends to follow a Pareto distribution i.e. ~20% of the codebase is responsible for ~80% of the runtime (when its not 10/90 or even 1/99). So, ya, this kind of microoptimization won't usually buy you much.
– Marcel Hernandez
May 31...
Integer division with remainder in JavaScript?
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Conclusion: Use (a/b>>0) (or (~~(a/b)) or (a/b|0)) to achieve about 20% gain in efficiency. Also keep in mind that they are all inconsistent with Math.floor, when a/b<0 && a%b!=0.
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How to set up fixed width for ?
... <th style="width: 30%">Col 1</th>
<th style="width: 20%">Col 2</th>
<th style="width: 10%">Col 3</th>
<th style="width: 30%">Col 4</th>
<th style="width: 10%">Col 5</th>
</tr>
</thead>
<tbody...
How do I alias commands in git?
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I think the most useful gitconfig is like this,we always use the 20% function in git,you can try the "g ll",it is amazing,the details:
[user]
name = my name
email = me@example.com
[core]
editor = vi
[alias]
aa = add --all
bv = branch -vv
ba = branch -ra
bd =...
Getting a slice of keys from a map
...hen generating the array of keys ten times with each method), it was about 20% faster to assign members of the array directly than to use append.
Although setting the capacity eliminates reallocations, append still has to do extra work to check if you've reached capacity on each append.
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