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Named Branches vs Multiple Repositories

We're currently using subversion on a relatively large codebase. Each release gets its own branch, and fixes are performed against the trunk and migrated into release branches using svnmerge.py ...
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Linear Regression and group by in R

I want to do a linear regression in R using the lm() function. My data is an annual time series with one field for year (22 years) and another for state (50 states). I want to fit a regression for each state so that at the end I have a vector of lm responses. I can imagine doing for loop for each ...
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Delete all lines beginning with a # from a file

All of the lines with comments in a file begin with # . How can I delete all of the lines (and only those lines) which begin with # ? Other lines containing # , but not at the beginning of the line should be ignored. ...
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How to normalize an array in NumPy?

I would like to have the norm of one NumPy array. More specifically, I am looking for an equivalent version of this function ...
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copying all contents of folder to another folder using batch file?

I have a folder in C:\Folder1 12 Answers 12 ...
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How can I create a correlation matrix in R?

I have 92 set of data of same type. 5 Answers 5 ...
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Split a vector into chunks in R

I have to split a vector into n chunks of equal size in R. I couldn't find any base function to do that. Also Google didn't get me anywhere. So here is what I came up with, hopefully it helps someone some where. ...
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How do I choose grid and block dimensions for CUDA kernels?

This is a question about how to determine the CUDA grid, block and thread sizes. This is an additional question to the one posted here . ...
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How to subtract 2 hours from user's local time?

Can anyone give me a simple JavaScript code block that will allow me to display the local time minus 2 hours? 2 Answers ...
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In Python, how do I index a list with another list?

I would like to index a list with another list like this 7 Answers 7 ...