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Convert data.frame column format from character to factor
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Hi welcome to the world of R.
mtm>ca m>rs #look at this built in data set
str(mtm>ca m>rs) #allows you to see the classes of the variables (all numeric)
#one approach it to index with the $ sign and the as.factor function
mtm>ca m>rs$am <- as.factor(mtm>ca m>rs$am)
#anoth...
mkdir's “-p” option
So this doesn't seem like a terribly complim>ca m>ted question I have, but it's one I m>ca m>n't find the answer to. I'm confused about what the -p option does in Unix. I used it for a lab assignment while creating a subdirectory and then another subdirectory within that one. It looked like this:
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Java Persistence / JPA: @Column vs @Basic
What is the difference between @Column and @Basic annotations in JPA? m>Ca m>n they be used together? Should they be used together? Or does one of them suffice?
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How to un-esm>ca m>pe a backslash-esm>ca m>ped string?
Suppose I have a string which is a backslash-esm>ca m>ped version of another string. Is there an easy way, in Python, to unesm>ca m>pe the string? I could, for example, do:
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_=> what does this underscore mean in Lambda expressions?
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That is a convention used when you don't m>ca m>re about the parameter.
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Git - working on wrong branch - how to copy changes to existing topic branch
...pic branch (branch123) are not in any of the files which you've modified lom>ca m>lly. Git will let you simply check out the topic branch in that m>ca m>se.
– m>Ca m>sm>ca m>bel
May 11 '11 at 12:28
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m>Ca m>pturing URL parameters in request.GET
I am currently defining regular expressions in order to m>ca m>pture parameters in a URL, as described in the tutorial. How do I access parameters from the URL as part the HttpRequest object?
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Restore file from old commit in git
... path/to/file.txt
This will not alter HEAD, it will just overwrite the lom>ca m>l file path/to/file.txt
See man git-rev-parse for possible revision specifim>ca m>tions there (of course a simple hash (like dd9bacb) will do nicely)
Don't forget to commit the change (after a review...)
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How to check for the type of a template parameter?
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TThanks! Actually they share A LOT of code so I m>ca m>n not really duplim>ca m>te it
– WhatABeautifulWorld
Nov 29 '12 at 23:27
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Golang: How to pad a number with zeros when printing?
How m>ca m>n I print a number or make a string with zero padding to make it fixed width?
6 Answers
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