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Specifying colClasses in the read.csv

... the read.csv function in R. In my data, the first column "time" is basically a character vector while the rest of the columns are numeric. ...
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How do I find the most recent git commit that modified a file?

...ts looking at the history of specific files (and directories), so you can call it like this: git log my/file.c If you really only want to list the one most recent commit, for example to use it in a script, use the -n 1 option: git log -n 1 --pretty=format:%H -- my/file.c --pretty=format:%h tel...
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Preventing Laravel adding multiple records to a pivot table

...ems()->where('foreign_key', $foreignKey)->count() Which, well, actually performs an additional query too '^^ But I don't need to fetch and hydrate the whole collection unless I really need it. – Silence May 24 '15 at 13:57 ...
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How to export plots from matplotlib with transparent background?

...Matplotlib so as to save you graph as a png file. And if you want to turn all white pixel transparent, there's this other question : Using PIL to make all white pixels transparent? If you want to turn an entire area to transparent, then there's this question: And then use the PIL library like in t...
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Single Page Application: advantages and disadvantages [closed]

...pages. The number of pages user downloads during visit to my web site?? really how many mails some reads when he/she opens his/her mail account. I read >50 at one go. now the structure of the mails is almost the same. if you will use a server side rendering scheme the server would then render it...
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Script parameters in Bash

...at can make it easier to parse named arguments on the command line, but usually for simple shell scripts you should just use the easy way, if it's no problem. Then you can do: /usr/local/bin/abbyyocr9 -rl Swedish -if "$1" -of "$2" 2>&1 The double quotes around the $1 and the $2 are not al...
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Change old commit message on Git

...situation, a git rebase -i --abort might be needed to reset everything and allow you to try again) As Dave Vogt mentions in the comments, git rebase --continue is for going to the next task in the rebasing process, after you've amended the first commit. Also, Gregg Lind mentions in his answer the r...
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How can I keep my branch up to date with master with git?

... Assuming you're fine with taking all of the changes in master, what you want is: git checkout <my branch> to switch the working tree to your branch; then: git merge master to merge all the changes in master with yours. ...
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What are the differences between vector and list data types in R?

... Technically lists are vectors, although very few would use that term. "list" is one of several modes, with others being "logical", "character", "numeric", "integer". What you are calling vectors are "atomic vectors" in strict R parl...
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In Windows Azure: What are web role, worker role and VM role?

... to host the application in Windows Azure, so I created a web role. I actually want to know what these roles are for. What is their significance coding wise or storage wise? ...