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Change column type from string to float in Pandas

I want to convert a table, represented as a list of lists, into a Pandas DataFrame . As an extremely simplified example: 9...
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Which is the preferred way to concatenate a string in Python?

Since Python's string can't be changed, I was wondering how to concatenate a string more efficiently? 12 Answers ...
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What is an Android PendingIntent?

I am a newbie to Android. I read the Android Documentation but I still need some more clarification. Can anyone tell me what exactly a PendingIntent is? ...
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Jelly Bean DatePickerDialog — is there a way to cancel?

--- Note to moderators: Today (July 15), I've noticed that someone already faced this problem here . But I'm not sure if it's appropriate to close this as a duplicate, since i think I provided a much better explanation of the issue. I'm not sure if I should edit the other question and paste this ...
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Asynchronous vs synchronous execution, what does it really mean? [closed]

What is the difference between asynchronous and synchronous execution? 22 Answers 22 ...
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LINQ - Full Outer Join

I have a list of people's ID and their first name, and a list of people's ID and their surname. Some people don't have a first name and some don't have a surname; I'd like to do a full outer join on the two lists. ...
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Remove grid, background color, and top and right borders from ggplot2

I would like to reproduce the plot immediately below by using ggplot2. I can come close, but cannot remove the top and right borders. Below I present several attempts using ggplot2, including several suggestions found on or via Stackoverflow. Unfortunately I have not been able to get those sugges...
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Merging 2 branches together in GIT

I've only just started to use GIT and think its wonderful, however I'm a little confused over what the merge command does. ...
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Checkout subdirectories in Git?

Is it possible to check out subdirectories of a repository in Git? 9 Answers 9 ...
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What's the difference between dependencies, devDependencies and peerDependencies in npm package.json

This documentation answers my question very poorly. I didn't understand those explanations. Can someone say in simpler words? Maybe with examples if it's hard to choose simple words? ...