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Pandas read_csv low_memory and dtype options
...aving to change the 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 un...
Using column alias in WHERE clause of MySQL query produces an error
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@megaSteve4 I did have the same problem! Using "HAVING" solved it smoothly. :)
– Johan
May 2 '13 at 23:02
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Find() vs. Where().FirstOrDefault()
...able and have a greater impact.
I guess my next question would be why did they add the find at all. That is a good tip. The only thing I can think of is that the FirstOrDefault could return a different default value other than null. Otherwise it just seems like a pointless addition
Find on Lis...
Android: textColor of disabled button in selector not showing?
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You need to also create a ColorStateList for text colors identifying different states.
Do the following:
Create another XML file in res\color named something like text_color.xml.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com...
Original purpose of ? [closed]
I am curious about the original purpose of the <input type="hidden"> tag.
5 Answers
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Is it possible to install APK file if more than one emulators/devices are connected [duplicate]
... alternate to install that apk file by giving any specific device Emulator id or any name ???
Please help me if there is any idea for it. . .
Thanks.
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Can a div have multiple classes (Twitter Bootstrap) [duplicate]
...me then it'll be the one that's defined last on the CSS). So you better avoid doing stuff like this:
<p class="text-center text-left">Some text</p>
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Reference: mod_rewrite, URL rewriting and “pretty links” explained
...ay also look like this:
GET /foo/bar?baz=42 HTTP/1.1
This is just as valid a request for a URL, and it has more obviously nothing to do with files.
The web server is an application listening on a port, accepting HTTP requests coming in on that port and returning a response. A web server is entir...
Will the base class constructor be automatically called?
...s not. So in order to create a parametersless constructor, you need to provide an argument to the base constuctor, which you can do with the base implementation.
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Can you nest html forms?
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I agree with what others have said. This limitation seems arbitrary and harmful.
– aroth
Jul 7 '14 at 6:43
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