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Simple way to calculate median with MySQL
...al FROM data ORDER BY val limit @middlevalue) x;
I tested this with a 5x10e6 dataset of random numbers and it will find the median in under 10 seconds.
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filter for complete cases in data.frame using dplyr (case-wise deletion)
...his maybe as part of filter.
library('rbenchmark')
library('dplyr')
n = 5e6
n.na = 100000
df = data.frame(
x1 = sample(1:10, n, replace=TRUE),
x2 = sample(1:10, n, replace=TRUE)
)
df$x1[sample(1:n, n.na)] = NA
df$x2[sample(1:n, n.na)] = NA
benchmark(
df %>% filter(complete.cases(x...
How to generate a git patch for a specific commit?
...ute in a way that is compatible with "git patch-id --stable".
See commit a8f6855, commit 6f93d26 (26 Apr 2019) by Stephen Boyd (akshayka).
(Merged by Junio C Hamano -- gitster -- in commit 8202d12, 13 Jun 2019)
format-patch: make --base patch-id output stable
We weren't flushing the cont...
How do I find the location of the executable in C? [duplicate]
...friendly path: /home/peeterj/views/peeterj_clang-7.vws/.s/00024/8000023250b8f17fllvm-tblgen
– Peeter Joot
Nov 30 '12 at 18:23
5
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Deleting all pending tasks in celery / rabbitmq
...1.celery.pidbox 0 1
bcast.361093f1-de68-46c5-adff-d49ea8f164c0 0 1
bcast.a53632b0-c8b8-46d9-bd59-364afe9998c1 0 1
celeryev.c27b070d-b07e-4e37-9dca-dbb45d03fd54 0 1
celeryev.c66a9bed-84bd-40b0-8fe7-4e4d0c002866 0 1
celeryev.b490f71a-be1a-4cd8-ae17-06a713cc2a9...
Why does Boolean.ToString output “True” and not “true”
...pez Your comment is incorrect, see here: msdn.microsoft.com/en-us/library/c8f5xwh7.aspx. Also, looking up the Boolean definition reveals it is in fact a struct, and the two do have the same properties.
– tsemer
Aug 13 '14 at 6:52
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Regular expression to match a line that doesn't contain a word
...┬──┐
S = │e1│ A │e2│ B │e3│ h │e4│ e │e5│ d │e6│ e │e7│ C │e8│ D │e9│
└──┴───┴──┴───┴──┴───┴──┴───┴──┴───┴──┴───┴──┴───┴──┴───┴──┘
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How do you attach and detach from Docker's process?
...:
# docker run -it -d ubuntu
91262536f7c9a3060641448120bda7af5ca812b0beb8f3c9fe72811a61db07fc
# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
91262536f7c9 ubuntu "/bin/bash" 5 sec...
Find and restore a deleted file in a Git repository
...le.rb")^ -- "spec/Sporkfile_example.rb" zsh: no matches found: b71c152d8f38dcd23ad7600a93f261a7252c59e9^ I switched to bash & it worked fine though.
– zoras
Feb 28 '12 at 3:45
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How to find the statistical mode?
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I measured running time with a factor of 1e6 elements and this solution was faster than the accepted answer by almost factor 3!
– vonjd
Jun 6 '16 at 10:34
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