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Add one row to pandas DataFrame
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You can use df.loc[i], where the row with index i will be what you specify it to be in the dataframe.
>>> import pandas as pd
>>> from numpy.random import randint
>>> df = pd.DataFrame(columns=['lib', 'qty1', 'qty2'])
>>> for i i...
Unique Constraint in Entity Framework Code First
...work at the moment. However, this isn't just a problem with unique constraints... you may want to create indexes, check constraints, and possibly triggers and other constructs too. Here's a simple pattern you can use with your code-first setup, though admittedly it's not database agnostic:
public...
How to enable external request in IIS Express?
How can I enable remote requests in IIS Express? Scott Guthrie wrote that is possible but he didn't say how.
26 Answers
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Best way to test for a variable's existence in PHP; isset() is clearly broken
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If the variable you are checking would be in the global scope you could do:
array_key_exists('v', $GLOBALS)
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Reset AutoIncrement in SQL Server after Delete
I've deleted some records from a table in a SQL Server database. Now the ID's go from 101 to 1200. I want to delete the records again, but I want the ID's to go back to 102. Is there a way to do this in SQL Server?
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How to increase request timeout in IIS?
How to increase request timeout in IIS 7.0? The same is done under application tab in ASP configuration settngs in IIS 6.0. I am not able to find the asp.net configuration section in IIS 7.0
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How to filter logcat in Android Studio?
In my logcat there is too much output, so I'd like to filter it using some keywords, basically displaying only the output containing the keyword(s). Is there a way to do that in Android Studio through the UI?
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Debug vs. Release performance
I've encountered the following paragraph:
10 Answers
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Inline labels in Matplotlib
In Matplotlib, it's not too tough to make a legend ( example_legend() , below), but I think it's better style to put labels right on the curves being plotted (as in example_inline() , below). This can be very fiddly, because I have to specify coordinates by hand, and, if I re-format the plot, I pro...
Red black tree over avl tree
AVL and Red black trees are both self-balancing except Red and black color in the nodes. What's the main reason for choosing Red black trees instead of AVL trees? What are the applications of Red black trees?
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