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How to keep index when using pandas merge

I would like to merge two DataFrames , and keep the index from the first frame as the index on the merged dataset. However, when I do the merge, the resulting DataFrame has integer index. How can I specify that I want to keep the index from the left data frame? ...
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How to configure a HTTP proxy for svn

...p://code.sixapart.com/svn/perlbal/ . I can only access the the repository url by setting a proxy. I guess if I want to get the code from the same URL by svn I need to configure a proxy, too. So does anyone of you could tell me how to configure a HTTP proxy in svn? ...
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How to compile a 32-bit binary on a 64-bit linux machine with gcc/cmake

... in 32-bit with cmake and gcc on a 64-bit system? It probably is, but how do I do it? 6 Answers ...
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What happens to git commits created in a detached HEAD state?

.... git reflog This will show a list of commits, and the "lost" commit should be in there. You can make it into a new branch. For example, if the SHA-1 is ba5a739, then you can make a new branch named "new-branch" at the old commit with: git branch new-branch ba5a739 Note that "lost" commits w...
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How to permanently export a variable in Linux?

I am running RHEL6, and I have exported an environment variable like this: 6 Answers 6...
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Undocumented NSURLErrorDomain error codes (-1001, -1003 and -1004) using StoreKit

I'm writing StoreKit-related code, and I'm getting some rather troubling error codes when I try to add a purchase to the queue. ...
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How can I select rows with most recent timestamp for each key value?

.... I want to select a single row with latest timestamp for each sensor, including some of the other fields. 7 Answers ...
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How do I add a ToolTip to a control?

I have some controls that I would like to display a ToolTip for when the mouse is hovering over it. How can I do this? I would like to know how to do this properly in code, but also in the designer (There is a ToolTip component in the toolbox, but I don't quite.. get it). ...
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sqlite database default time value 'now'

...it possible in a sqlite database to craete a table that has a timestamp column that default to DATETIME('now') ? 7 Answer...
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How to programmatically display version/build number of target in iOS app?

How can I programmatically get the value of the target version , like in the image below? 6 Answers ...