大约有 43,083 项符合查询结果(耗时:0.0613秒) [XML]

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How to get a vertical geom_vline to an x-axis of class date?

...I have a time series from and would like to draw a vertical line for years 1998, 2005 and 2010 for example. I tried with ggplot and qplot syntax, but still I either see no vertical line at all or the vertical line is drawn at the very first vertical grid and the whole series is shifted somewhat ...
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How can I suppress all output from a command using Bash?

...shells): scriptname &>/dev/null scriptname >/dev/null 2>&1 scriptname >/dev/null 2>/dev/null And, if you want to record the messages, but not see them, replace /dev/null with an actual file, such as: scriptname &>scriptname.out For completeness, under Windows cmd....
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Make $JAVA_HOME easily changable in Ubuntu [closed]

... 196 Put the environment variables into the global /etc/environment file: ... export JAVA_HOME=/us...
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What is the difference between ELF files and bin files?

... answered Mar 11 '10 at 17:30 t0mm13bt0mm13b 32.3k66 gold badges6767 silver badges101101 bronze badges ...
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How can I ignore a property when serializing using the DataContractSerializer?

I am using .NET 3.5SP1 and DataContractSerializer to serialize a class. In SP1, they changed the behavior so that you don't have to include DataContract / DataMember attributes on the class and it will just serialize the entire thing. This is the behavior I am using, but now I need to ignore o...
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How to remove duplicate values from an array in PHP

... Use array_unique(). Example: $array = array(1, 2, 2, 3); $array = array_unique($array); // Array is now (1, 2, 3) share | improve this answer | ...
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How do I check for null values in JavaScript?

... 19 Answers 19 Active ...
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Can't install via pip because of egg_info error

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Which is more efficient, a for-each loop, or an iterator?

...All iterators have as a fundamental requirement that next() should be an O(1) operation, making the loop O(n). To verify that the iterator is used underwater by the new for loop syntax, compare the generated bytecodes from the following two Java snippets. First the for loop: List<Integer> a...
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FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)

... There is one that is in android.support.v13.app.FragmentPagerAdapter, which should do what you want it to do. It's a FragmentPagerAdapter for non-support fragments. Android Studio Installation Please add follow Gradle dependencies dependencies { compile 'com....