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Matplotlib scatter plot with different text at each data point

I am trying to make a scatter plot and annotate data points with different numbers from a list. So, for example, I want to plot y vs x and annotate with corresponding numbers from n . ...
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How to take column-slices of dataframe in pandas

I load some machine learning data from a CSV file. The first 2 columns are observations and the remaining columns are features. ...
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How do I calculate percentiles with python/numpy?

Is there a convenient way to calculate percentiles for a sequence or single-dimensional numpy array? 11 Answers ...
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How are the points in CSS specificity calculated

Researching specificity I stumbled upon this blog - http://www.htmldog.com/guides/cssadvanced/specificity/ 7 Answers ...
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Are Javascript arrays sparse?

That is, if I use the current time as an index into the array: 7 Answers 7 ...
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What is the difference between 0.0.0.0, 127.0.0.1 and localhost?

I am using Jekyll and Vagrant on my mac. I found that Jekyll server will bind to 0.0.0.0:4000 instead of 127.0.0.1:4000 . Also gem server will bind to this address by default. I can still visit it via http://localhost:port . But for Jekyll , it seems that the default setting (e.g. 0.0....
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Open Redis port for remote connections

I can ping pong Redis on the server: 9 Answers 9 ...
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Get operating system info

I recently started wondering about sites like http://thismachine.info/ that get the user's operating system info. I have not been able to find out how to do that with PHP, and wanted to try to figure it out. ...
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Google Maps API 3 - Custom marker color for default (dot) marker

I've seen lots of other questions similar to this ( here , here and here ), but they all have accepted answers that don't solve my problem. The best solution I have found to the problem is the StyledMarker library, which does let you define custom colours for markers, but I can't get it to use ...
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How to validate an email address using a regular expression?

Over the years I have slowly developed a regular expression that validates MOST email addresses correctly, assuming they don't use an IP address as the server part. ...