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Has anyone actually implemented a Fibonacci-Heap efficiently?
...lemented a Fibonacci-Heap ? I did so a few years back, but it was several orders of magnitude slower than using array-based BinHeaps.
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Using the RUN instruction in a Dockerfile with 'source' does not work
...targets /bin/sh to dash for a reason. dash is a fully posix shell which is orders of magnitude faster than bash. linking /bin/sh to bash will drastically reduce your server's performance. cite: wiki.ubuntu.com/DashAsBinSh
– xero
May 9 '16 at 18:35
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How to change language settings in R
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@0range did you try cd \ and dir Rconsole /s in order to look for multiple files?
– Alessandro Jacopson
Apr 1 at 6:50
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Which C++ idioms are deprecated in C++11?
... Regarding 14) I'm still crying that I have to use macros in order to write the same code twice -- once for the function body and once for the decltype() statement...
– user678269
Mar 31 '14 at 22:56
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How to smooth a curve in the right way?
...om(100) * 0.2
yhat = savitzky_golay(y, 51, 3) # window size 51, polynomial order 3
plt.plot(x,y)
plt.plot(x,yhat, color='red')
plt.show()
UPDATE: It has come to my attention that the cookbook example I linked to has been taken down. Fortunately, the Savitzky-Golay filter has been incorporated i...
How to check if a string contains a substring in Bash
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Note that the order in which the test occurs matters. The output of the following line of code will be forward 2. number=2; if [[ "1, 2, 4, 5" = *${number}* ]]; then echo forward $number; fi; if [[ *${number}* = "1, 2, 4, 5" ]]; then echo ...
Adding a new value to an existing ENUM Type
...he enum type you want to change, you can try this. Also you can change the order of values in the new type.
-- 1. rename the enum type you want to change
alter type some_enum_type rename to _some_enum_type;
-- 2. create new type
create type some_enum_type as enum ('old', 'values', 'and', 'new', 'on...
How to copy commits from one branch to another?
...it merge wss-to-rebase
Note: the reason that it takes some extra work in order to do this is that it's creating duplicate commits in your repository. This isn't really a good thing - the whole point of easy branching and merging is to be able to do everything by making commit(s) one place and merg...
Change text color of one word in a TextView
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USE:
makeTextBold("Your order is accepted","accepted", textView);
makeTextBold("Your order is canceled","canceled", textView);
Function:
public static void makeTextBold(String sentence, String word, AppCompatTextView textView) {
SpannableStri...
How to get image height and width using java?
...56) - 2649ms, 68ms
It's obvious that some methods load the whole file in order to get dimensions while others get by just reading some header information from the image. I think these numbers may be useful when application performance is critical.
Thank you everyone for the contribution to this t...