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Modifying a subset of rows in a pandas dataframe

... the rows, 'B' selects the column. You can also use this to transform a subset of a column, e.g.: df.loc[df.A==0, 'B'] = df.loc[df.A==0, 'B'] / 2 I don't know enough about pandas internals to know exactly why that works, but the basic issue is that sometimes indexing into a DataFrame returns a co...
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How to force a SQL Server 2008 database to go Offline

... Go offline USE master GO ALTER DATABASE YourDatabaseName SET OFFLINE WITH ROLLBACK IMMEDIATE GO Go online USE master GO ALTER DATABASE YourDatabaseName SET ONLINE GO share | im...
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Object comparison in JavaScript [duplicate]

... return false; } // Quick checking of one object being a subset of another. // todo: cache the structure of arguments[0] for performance for (p in y) { if (y.hasOwnProperty(p) !== x.hasOwnProperty(p)) { return false; } else if (typeof y[p] !...
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How to add a ScrollBar to a Stackpanel

...ting a ScrollViewer around it, the entire content doesn't show up. I tried setting Height and Width to Auto, but no luck. Why should only a limited portion show? – Shamim Hafiz Jun 6 '11 at 9:57 ...
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How do I programmatically force an onchange event on an input?

... whether they were registered by calling the addEventListener method or by setting the onchange property of the element. If you want the event to bubble, you need to pass a second argument to the Event constructor: var event = new Event('change', { bubbles: true }); Information about browser...
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Search an Oracle database for tables with specific column names?

...w does not exist error. Would that have to do with how the privileges are set up? – David Oneill Dec 23 '09 at 15:13 ...
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Why does Git tell me “No such remote 'origin'” when I try to push to origin?

...before running git commit -m "some descriptive message" 2 - You haven't set up the remote repository You then ran git remote add origin https://github.com/VijayNew/NewExample.git After that, your local repository should be able to communicate with the remote repository that resides at the spe...
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Understanding colors on Android (six characters)

I am trying to understand how colors work in Android. I have this color set as the background of my LinearLayout , and I get a background gray with some transparency: ...
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Which $_SERVER variables are safe?

...hose values into three categories: Server controlled These variables are set by the server environment and depend entirely on the server configuration. 'GATEWAY_INTERFACE' 'SERVER_ADDR' 'SERVER_SOFTWARE' 'DOCUMENT_ROOT' 'SERVER_ADMIN' 'SERVER_SIGNATURE' Partly server controlled These variable...
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CSS table layout: why does table-row not accept a margin?

... background color */ } It's not as dynamic, since you have to explicitly set the color of the border (unless there's a way around that too), but this is something I'm experimenting with on a project of my own. Edit to include comments regarding transparent: tr.row { border-bottom: 30px solid...