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Remove rows with all or some NAs (missing values) in data.frame

... Joris MeysJoris Meys 95k2626 gold badges196196 silver badges254254 bronze badges ...
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How to clear basic authentication details in chrome

..."GET",str,true); xmlhttp.setRequestHeader("Authorization","Basic YXNkc2E6") xmlhttp.send(); return false; } share | improve this answer | follow |...
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正则表达式 不包含指定字符串 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...o! 原文链接:http://www.imkevinyang.com/2009/08/%E4%BD%BF%E7%94%A8%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%E6%89%BE%E5%87%BA%E4%B8%8D%E5%8C%85%E5%90%AB%E7%89%B9%E5%AE%9A%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E6%9D%A1%E7%9B%AE.html 正则表达式 不包含 字符串
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Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence

...xa8\xd7\x99 \xd7\xa6\xd7\xa7\xd7\x9c\xd7\x94', 2: u'\u05d1\u05e8\u05d9 \u05e6\u05e7\u05dc\u05d4'} >>> s=json.dumps(d, ensure_ascii=False, encoding='utf8') >>> s u'{"1": "\u05d1\u05e8\u05d9 \u05e6\u05e7\u05dc\u05d4", "2": "\u05d1\u05e8\u05d9 \u05e6\u05e7\u05dc\u05d4"}' >>>...
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How to check if remote branch exists on a given remote repository?

...a67d7371 refs/heads/deps_refactor 821e15e5f2d9ef2aa43918a16cbd00f40c221e95 refs/heads/encoding 8f57bf207ff4f28fa8da4544ebc573007b65439d refs/heads/master c796d695909c8632b4074b7af69a1ef46c68289a refs/heads/sass-cleanup afd7140b66e7cb32e1be58d9e44489e6bcbde0dc refs/heads/serializers ...
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What characters are valid for JavaScript variable names?

...815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\...
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Number of days in particular month of particular year?

... daysInMonth = monthEnum.maxLength(); } If the month isn't February (92% of the cases), it depends on the month only and it is more efficient not to involve the year. This way, you don't have to call logic to know whether it is a leap year and you don't need to get the year in 92% of the cases...
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In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli

...6","87","88","89","8A","8B","8C","8D","8E","8F", "90","91","92","93","94","95","96","97","98","99","9A","9B","9C","9D","9E","9F", "A0","A1","A2","A3","A4","A5","A6","A7","A8","A9","AA","AB","AC","AD","AE","AF", "B0","B1","B2","B3","B4","B5","B6","B7","B8","B9","BA","BB","BC","BD","BE","BF", "C0","C1...
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How to draw a path on a map using kml file?

... GeoPoint startGP = new GeoPoint((int) (Double.parseDouble(lngLat[1]) * 1E6), (int) (Double.parseDouble(lngLat[0]) * 1E6)); mMapView01.getOverlays().add(new RouteOverlay(startGP, startGP, 1)); GeoPoint gp1; GeoPoint gp2 = startGP; for (int i = 1; i ...
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switch() statement usage

... == "median") 2 else if (type == "trimmed") 3 } system.time( for(i in 1:1e6) test1('mean') ) # 0.89 secs system.time( for(i in 1:1e6) test2('mean') ) # 1.13 secs system.time( for(i in 1:1e6) test1('trimmed') ) # 0.89 secs system.time( for(i in 1:1e6) test2('trimmed') ) # 2.28 secs Update With Jo...