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How can the Euclidean distance be calculated with NumPy?
.../questions/322620/… . I have 2 tables of 'operations'; each has a 'code' label, but the two sets of labels are totally different. my goal is to find the best or closest code from the second table corresponding to a fixed code in the first (I know what the answer should be from manual inspection, b...
Weak and strong property setter attributes in Objective-C
...re what you mean by “default”. You have both strong=retain and assign labelled as defaults, but it can't be both.
– Slipp D. Thompson
May 28 '13 at 12:32
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Which characters make a URL invalid?
...semantic distinction, not a syntactic one. If the parsers you've seen that labelled themselves as "URI" parsers treated square brackets differently to those that labelled themselves as "URL" parsers, then that's pure coincidence, not caused by any difference between URLs and URIs.
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When to use symbols instead of strings in Ruby?
...ata: 123, file: "test.txt")
freeze to keep as a string and save memory
label = 'My Label'.freeze
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Base64Util 拓展：支持图像框、画布、文件、文本字符串、图像精灵base64编...
...代码
注意事项
下面提到的base64文本都是去掉了类似 “data:image/png;base64,” 前缀的文本。
图像框有关
画布有关
根据base64设置画布背景，已经有专门的内置属性块了。
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What does “S3 methods” mean in R?
...hod dispatching schemes described in the other answers come from S and are labelled appropriately according to version.
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Load view from an external xib file in storyboard
... "ReusableCustomView"
var contentView: UIView?
@IBOutlet weak var label: UILabel!
@IBAction func buttonTap(_ sender: UIButton) {
label.text = "Hi"
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
guard let view = loadViewFromNib()...
Generate a heatmap in MatPlotLib using a scatter data set
...t this as some sort of normal axes instance, where I can add a title, axis labels, etc. and then do the normal savefig() like I would do for any other typical matplotlib plot.
– gotgenes
Jul 15 '11 at 19:19
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App Launcher 应用启动器扩展：用于启动其他应用程序的强大工具，支持独立...
...App Inventor允许使用ActivityStarter组件启动其他活动。不幸的是，启动已安装的应用程序非常麻烦。根据说明，必须下载要启动的应用程序的.apk并找到包名。这两者都不容易也不总是可能的。
这个扩展简化了启动应用程序的过程。...
通过FastCGI Cache实现服务降级 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...宕机等等，此时如果没有合理的降级方案，那么结局必然是死路一条。
任何问题一旦脱离了实际情况，便失去了讨论的意义。在继续之前，不妨先介绍一下案例的背景情况：一个PHP网站，以读为主，原本躲在CDN后面，运行很稳...