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C-like structures in Python
...lass
class Point:
x: float
y: float
z: float = 0.0
p = Point(1.5, 2.5)
print(p) # Point(x=1.5, y=2.5, z=0.0)
This plays nicely with the new typing module in case you want to use more specific type annotations.
I've been waiting desperately for this! If you ask me, Data Classes and...
How to remove outliers from a dataset
...{
qnt <- quantile(x, probs=c(.25, .75), na.rm = na.rm, ...)
H <- 1.5 * IQR(x, na.rm = na.rm)
y <- x
y[x < (qnt[1] - H)] <- NA
y[x > (qnt[2] + H)] <- NA
y
}
To see it in action:
set.seed(1)
x <- rnorm(100)
x <- c(-10, x, 10)
y <- remove_outliers(x)
## png(...
How do I go straight to template, in Django's urls.py?
....djangoproject.com/en/2.0/ref/class-based-views/base/#templateview
Django 1.5+
Use the class based generic views.
from django.views.generic import TemplateView
urlpatterns = patterns('',
(r'^foo/$', TemplateView.as_view(template_name='foo.html')),
)
Django <= 1.4
Docs: https://docs.dja...
Download large file in python with requests
...y. What are you trying to accomplish using it? (your memory usage won't be 1.5gb if you drop it). f.write(b'') (if iter_content() may return an empty string) should be harmless and therefore if chunk could be dropped too.
– jfs
Sep 28 '15 at 1:40
...
R memory management / cannot allocate vector of size n Mb
...t 2.4 GB for R, but now comes the worse...
open R and create a data set of 1.5 GB, then reduce its size to 0.5 GB, the Resource Monitor shows my RAM is used at nearly 95%.
use gc() to do garbage collection => it works, I can see the memory use go down to 2 GB
Additional advice that works on m...
Using Sass Variables with CSS3 Media Queries
... - 1px) {
:root {
--font-size-regular: 16px;
--gutter: 1.5rem;
}
}
@media (min-width: $mq-desktop) {
:root {
--font-size-regular: 18px;
--gutter: 1.75rem;
}
}
.my-element {
font-size: var(--font-size-regular);
padding: 0 calc(var(--gutter) / ...
Get dimension from XML and set text size in runtime
...te pixels. Your phone screen density is obviously hdpi (240dpi) so it uses 1.5 scale to convert dp to sp. Simple math 18 * 1.5 = 27.
It seems that your tablet density is mdpi (160dpi) so scale is just 1:1.
But if you compare real size of both texts it should be the same.
The best way is just crea...
How to implement Android Pull-to-Refresh
...g smoothScrollBy (API Level 8). The widget is now updated with support for 1.5 and later, please read the README for 1.5 support though.
In your layouts you simply add it like this.
<com.markupartist.android.widget.PullToRefreshListView
android:id="@+id/android:list"
android:layout_heig...
C++并发编程（中文版） - 文档下载 - 清泛网 - 专注C/C++及内核技术
...的工具… 9
1.4 开始入门… 9
1.4.1 你好，并发世界… 9
1.5 小结… 10
第2章 线程管理… 13
2.1 基本线程管理… 13
2.1.1 启动线程… 13
2.1.2 等待线程完成… 16
2.1.3 在异常环境下的等待… 16
2.1.4 后台运行线程… 18
2.2 传递参数给...
100% Min Height CSS layout
...y:arial,sans-serif;
font-size:small;
color:#666;
}
h1 {
font:1.5em georgia,serif;
margin:0.5em 0;
}
h2 {
font:1.25em georgia,serif;
margin:0 0 0.5em;
}
h1, h2, a {
color:orange;
}
p {
line-height:1.5;
margin:0 0 1em;
}
div#container {
posi...