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Echo tab characters in bash script

... Put your string between double quotes: echo "[$res]" share | improve this answer | follow |...
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Filtering Pandas DataFrames on dates

...revious answer is not correct in my experience, you can't pass it a simple string, needs to be a datetime object. So: import datetime df.loc[datetime.date(year=2014,month=1,day=1):datetime.date(year=2014,month=2,day=1)] s...
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How does the HyperLogLog algorithm work?

...n be of different sizes. One element can be 1 another element "is this big string". So if you have a huge list (or a huge stream of elements) it will take a lot memory. Probabilistic Counting How can one get a reasonable estimate of a number of unique elements? Assume that you have a string of l...
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Quickest way to compare two generic lists for differences

...want the results to be case insensitive, the following will work: List<string> list1 = new List<string> { "a.dll", "b1.dll" }; List<string> list2 = new List<string> { "A.dll", "b2.dll" }; var firstNotSecond = list1.Except(list2, StringComparer.OrdinalIgnoreCase).ToList(); v...
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Start may not be called on a promise-style task. exception is coming

...s already started the task before giving it to you. You should only ever call Start on a task that you create by calling its constructor, and you shouldn't even do that unless you have a compelling reason to not start the task when you create it; if you want it started right away you should use Tas...
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What does $@ mean in a shell script?

... join all arguments by single spaces as well and # will then split the string as the shell does on the command # line, thus it will split an argument containing spaces into # several arguments. Example: Calling wrapper "one two three" four five "six seven" will result in: "$@": ...
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Update ViewPager dynamically?

...ntation. Here's an example for a pager creating fragments off of a list of strings: ViewPager pager = /* get my ViewPager */; // assume this actually has stuff in it final ArrayList<String> titles = new ArrayList<String>(); FragmentManager fm = getSupportFragmentManager(); pager.setAda...
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Best way to represent a fraction in Java?

... 0x10000000000000L).) * * NOTE: In many cases, BigFraction(Double.toString(d)) may give a result * closer to what the user expects. */ public BigFraction(double d) { if(Double.isInfinite(d)) throw new IllegalArgumentException("double val is infinite"); if(Double.isNaN(...
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How to drop a list of rows from Pandas dataframe?

... Folks, in examples, if you want to be clear, please don't use the same strings for rows and columns. That's fine for those who really know their stuff already. Frustrating for those trying to learn. – gseattle Mar 19 '17 at 7:40 ...
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The bare minimum needed to write a MSMQ sample application

...y of the output loop, add "message.Formatter = new XmlMessageFormatter(new String[] { "System.String,mscorlib" });Console.Write(message.Body.ToString());". As MSMQ passes things around as serialized objects, you have to tell it how to deserialize the objects its received into their original form. ...