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Split comma-separated strings in a column into separate rows
...brary(magrittr)
Define function for benchmark runs of problem size n
run_mb <- function(n) {
# compute number of benchmark runs depending on problem size `n`
mb_times <- scales::squish(10000L / n , c(3L, 100L))
cat(n, " ", mb_times, "\n")
# create data
DF <- data.frame(directo...
How to version control a record in a database
...ite queries against the FOO table. Happy days.
Then, I would create a FOO_HISTORY table. This has all the columns of the FOO table. The primary key is the same as FOO plus a RevisionNumber column. There is a foreign key from FOO_HISTORY to FOO. You might also add columns related to the revisio...
A variable modified inside a while loop is not remembered
...ere: for line in $(echo -e $lines); do ... done
– dma_k
Jan 19 '16 at 20:20
@dma_k Thanks for your comment! This solut...
What is base 64 encoding used for?
...
@still_dreaming_1 PHP calls them binary strings. (source)php.net/manual/en/function.pack.php
– Cholthi Paul Ttiopic
Feb 28 '19 at 6:07
...
In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
...sure why this isn't the accepted answer.
– kayleeFrye_onDeck
Nov 16 '16 at 22:02
Defining old style anchors <a name...
jquery UI dialog: how to initialize without a title bar?
...t just for the currently opening dialog.
– ingredient_15939
May 14 '12 at 16:44
Nice ... This means I dont have to mak...
Can't install PIL after Mac OS X 10.9
...nk if needed i.e. if upgrading.
3) Install Pip and required modules:
easy_install pip
sudo pip install setuptools --no-use-wheel --upgrade
4) Finally this works with no errors:
sudo pip install Pillow
UPDATE 11/04/14: PIL repo no longer receives updates or support so Pillow should be used. T...
How to write an async method with out parameter?
... answered Apr 27 '18 at 14:30
jv_jv_
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What exactly is LLVM?
...ne code).
LLVM can also act as a JIT compiler - it has support for x86/x86_64 and PPC/PPC64 assembly generation with fast code optimizations aimed for compilation speed.
Unfortunately disabled since 2013, there was the ability to play with LLVM's machine code generated from C or C++ code at the de...
How do I catch a PHP fatal (`E_ERROR`) error?
I can use set_error_handler() to catch most PHP errors, but it doesn't work for fatal ( E_ERROR ) errors, such as calling a function that doesn't exist. Is there another way to catch these errors?
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