大约有 2,700 项符合查询结果(耗时:0.0320秒) [XML]
Android - SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
... Wow I had 68 MB of stuff cached by that app. :O
– XåpplI'-I0llwlg'I -
Apr 22 '14 at 10:42
add a comment
|
...
Android Studio with Google Play Services
...ies:
dependencies {
compile 'com.google.android.gms:play-services:6.5.87'
}
And finally syncronise your project (the button to the left of the AVD manager).
Since version 6.5 you can include the complete library (very large) or just the modules that you need (Best Option). I.e if you onl...
How often should you use git-gc?
... 2.7 (Q4 2015) will make sure to not lose the error message.
See commit 329e6e8 (19 Sep 2015) by Nguyễn Thái Ngọc Duy (pclouds).
(Merged by Junio C Hamano -- gitster -- in commit 076c827, 15 Oct 2015)
gc: save log from daemonized gc --auto and print it next time
While commit 9f673f9 ...
How to change Rails 3 server default port in develoment?
...n.rb, guarded with an if defined?(Rails::Server).
– XåpplI'-I0llwlg'I -
Aug 5 '15 at 10:13
...
How do I get Pyflakes to ignore a statement?
...
Is this documented anywhere?
– Håken Lid
Apr 30 '19 at 11:12
add a comment
|
...
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.
share
|
improve this answer
|
...
Fastest way to replace NAs in a large data.table
... and drop that warning when coercing length-1 vectors 0 and 1 to logical: #996. Might not do it since, for speed, you do want to be warned about unnecessary repetitive coercing.
– Matt Dowle
Jan 5 '15 at 10:33
...
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...
SQL-Server: Error - Exclusive access could not be obtained because the database is in use
...ess and old db was left in SINGLE_USER mode.
– Smörgåsbord
Dec 21 '16 at 18:50
3
this worked fo...
How does one write code that best utilizes the CPU cache to improve performance?
...pr 18 '09 at 12:56
Tomi KyöstiläTomi Kyöstilä
1,20599 silver badges1313 bronze badges
...