大约有 46,000 项符合查询结果（耗时：0.0457秒） [XML]
How to implement Rate It feature in Android App
... SharedPreferences prefs = mContext.getSharedPreferences("apprater", 0);
if (prefs.getBoolean("dontshowagain", false)) { return ; }
SharedPreferences.Editor editor = prefs.edit();
// Increment launch counter
long launch_count = prefs.getLong("launch_count", 0)...
How to split/partition a dataset into training and test datasets for, e.g., cross validation?
...k of the indices:
import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
numpy.random.shuffle(x)
training, test = x[:80,:], x[80:,:]
or
import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
indices = numpy.random.permutation(x.shape[0])
training_idx, test_idx = indices[:80], ind...
mysql check collation of a table
... |
edited Dec 13 '19 at 10:34
Robin
2,5782020 silver badges2929 bronze badges
answered Sep 30 '10 at 15...
Test if string is a guid without throwing exceptions?
...
107
Performance Benchmarks
Catch exception:
10,000 good: 63,668 ticks
10,000 bad: 6,435,...
Declaring variables inside loops, good practice or bad practice?
...ly includes the loop counter itself.
{
int i, retainValue;
for (i=0; i<N; i++)
{
int tmpValue;
/* tmpValue is uninitialized */
/* retainValue still has its previous value from previous loop */
/* Do some stuff here */
}
/* Here, retainValue is sti...
Auto Scale TextView Text to Fit within Bounds
...
From June 2018 Android officially started supporting this feature for Android 4.0 (API level 14) and higher.
Check it out at: Autosizing TextViews
With Android 8.0 (API level 26) and higher:
<?xml version="1.0" encoding="utf-8"?&g...
Using @include vs @extend in Sass?
... background-color: $main-color
border: 1px solid black
border-radius: 0.2em
&:hover, &:active
background-color: $active-color
a
+button
button
+button(pink, red)
Results in:
a {
background-color: lightgrey;
border: 1px solid black;
border-radius: 0.2em;
}
a:hover,...
Repeatedly run a shell command until it fails?
... |
edited Nov 8 '19 at 0:10
Gurpreet Atwal
7366 bronze badges
answered Oct 19 '12 at 4:09
...
How do I specify the exit code of a console application in .NET?
...
edited Aug 23 '18 at 14:50
answered Sep 30 '08 at 23:47
Th...
jquery how to empty input field
...
answered Feb 10 '12 at 23:36
shaunsantacruzshaunsantacruz
8,14433 gold badges1616 silver badges1818 bronze badges
...