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What are the “standard unambiguous date” formats for string-to-date conversion in R?

...te (+1). However, the error message "standard unambiguous format" is ironically ambiguous, to which the 23 previous questions attest. A more direct error message like, "format not recognized, see documentation" might improve user experience. Also, I don't believe "01/01/2000" is ISO-8601 ("2000-01-0...
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How To Create Table with Identity Column

...TH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ) ON [PRIMARY] share | improve this answer | follow...
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How to use a decimal range() step value?

...y([ 0. , 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9]) If you really want to use a floating-point step value, you can, with numpy.arange. >>> import numpy as np >>> np.arange(0.0, 1.0, 0.1) array([ 0. , 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9]) Floating-p...
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What is INSTALL_PARSE_FAILED_NO_CERTIFICATES error?

I was trying to change my default/main/startup (whatever you call it) activity by editing the androidmanifest.xml file. All i did was change the android:name property. however, this completely broke the entire app. when I try to install it fails and reads. ...
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Setting a system environment variable from a Windows batch file?

... The XP Support Tools (which can be installed from your XP CD) come with a program called setx.exe: C:\Program Files\Support Tools>setx /? SETX: This program is used to set values in the environment of the machine or currently logged on user using one of three...
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What is TypeScript and why would I use it in place of JavaScript? [closed]

... I originally wrote this answer when TypeScript was still hot-off-the-presses. Five years later, this is an OK overview, but look at Lodewijk's answer below for more depth 1000ft view... TypeScript is a superset of JavaScript ...
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Why have header files and .cpp files? [closed]

...dencies so that code that uses the header doesn't necessarily need to know all the details of the implementation and any other classes/headers needed only for that. This will reduce compilation times and also the amount of recompilation needed when something in the implementation changes. It's not ...
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SQL WHERE.. IN clause multiple columns

... or more generally SELECT * FROM table INNER JOIN otherTable ON ( table.x = otherTable.a AND table.y = otherTable.b) – ala Jul 16 '09 at 7:56 ...
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How to call a PHP function on the click of a button

...essfully"); }); }); }); In ajax.php <?php if (isset($_POST['action'])) { switch ($_POST['action']) { case 'insert': insert(); break; case 'select': select(); break; } } ...
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Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path

...Copy it in Base64 (.cer) format. It will be saved on your Desktop. • Install the certificate ignoring all the alerts. • This is how I gathered the certificate information of the URL that I was trying to access. Now I had to make my java version to know about the certificate so that further it do...