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Determine the number of NA values in a column
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321
You're over-thinking the problem:
sum(is.na(df$col))
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vs vs for inline and block code snippets
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vsyncvsync
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Build and Version Numbering for Java Projects (ant, cvs, hudson)
...rmat property="builtat" pattern="MM/dd/yyyy hh:mm aa" timezone="America/New_York"/>
</tstamp>
<exec executable="svnversion" outputproperty="svnversion"/>
<exec executable="whoami" outputproperty="whoami"/>
<exec executable="uname" outputproperty="build...
Assign width to half available screen width declaratively
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
How to select an option from drop down using Selenium WebDriver C#?
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Matt
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answered Apr 27 '15 at 12:13
MadhuMadhu
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When using a Settings.settings file in .NET, where is the config actually stored?
...s 7 is in C:\Users\<username>\AppData\Local\Publisher\ApplicationName_Eid_EvidenceHash\Version
– The Lonely Coder
Aug 13 '15 at 11:12
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What is the “FS”/“GS” register intended for?
...called "flat (IMHO dull) address space". The segment registers on the x86-32 machine can still be used for real segment registers, but nobody has bothered (Andy Grove, former Intel president, had a rather famous public fit last century when he figured out after all those Intel engineers spent energ...
一分钟读懂低功耗蓝牙(BLE) MTU交换数据包 - 创客硬件开发 - 清泛IT社区，...
... http://www.viewtool.com/index.php/22-2016-07-29-02-11-32/205-hollong-4-0-4-1-ble
4. MTU 请求（REQEUST）
完整数据（以下关注蓝色标注部分）
1) 存取地址
Access Address: 0xaf9a8c69
&nb...
Select all text inside EditText when it gets focus
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You can also add an OnClick Method to the editText after
_editText.setSelectAllOnFocus(true);
and in that:
_editText.clearFocus();
_editText.requestFocus();
As soon as you click the editText the whole text is selected.
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How do I access my SSH public key?
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Mitch DempseyMitch Dempsey
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