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How to get the first column of a pandas DataFrame as a Series?
...ure what's SO's policy regarding update of answers due to API change; I'm honestly surprised by the number of votes for this answer, didn't think it was that useful to people...
– herrfz
Apr 18 '16 at 16:06
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Pandas read_csv low_memory and dtype options
...dtype of that column when you read the last value.
Consider the example of one file which has a column called user_id.
It contains 10 million rows where the user_id is always numbers.
Since pandas cannot know it is only numbers, it will probably keep it as the original strings until it has read the ...
How to Remove ReadOnly Attribute on File Using PowerShell?
... are you telling me here? As for Keith's answer, he's using PSCX. Not everyone has those installed and that's not really a case of PowerShell v1 vs. v2.
– Joey
Apr 22 '11 at 9:28
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MSBuild doesn't copy references (DLL files) if using project dependencies in solution
I have four projects in my Visual Studio solution (everyone targeting .NET 3.5) - for my problem only these two are important:
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What does the WPF star do (Width=“100*”)
...widths with * (proportional) widths; in that case the * columns are apportioned to the remainder after the auto-fit and fixed widths have been calculated -
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" /> <!-- Auto-fit to content, 'Hi' -->
<ColumnDefinition ...
cannot load such file — zlib even after using rvm pkg install zlib
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Ruby has a bunch of package dependencies like the one on zlib-devel. They're nasty because there's nothing to indicate you need the library until get some obscure error message while trying to do something routine.
The solution is to use rvm. Use it even if you only need on...
Why is it string.join(list) instead of list.join(string)?
...nction with the first argument being the iterable and the second (optional one) being the joiner string - but that ship has sailed.
– user4815162342
Jun 11 '18 at 6:08
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Create a dictionary on a list with grouping
...DemoClass).ToDictionary(gdc => gdc.Key, gdc => gdc.ToList());
This one will work !!!
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The entity cannot be constructed in a LINQ to Entities query
...ce EF cannot find the mapping for PseudoProduct e.g. "System.InvalidOperationException: Mapping and metadata information could not be found for EntityType 'blah.PseudoProduct'".
– sming
Dec 24 '13 at 11:13
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How to do a SOAP Web Service call from Java class?
...ution if the received object is only a little bit differente from the sent one).
Creating a SOAP client using classic java.net.HttpUrlConnection is not that hard (but not that simple either), and you can find in this link a very good starting code.
I recommend you use the SAAJ framework:
SOA...