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Simultaneously merge multiple data.frames in a list
...question was marked as a duplicate of this one so I answer here, using the 3 sample data frames below:
x <- data.frame(i = c("a","b","c"), j = 1:3, stringsAsFactors=FALSE)
y <- data.frame(i = c("b","c","d"), k = 4:6, stringsAsFactors=FALSE)
z <- data.frame(i = c("c","d","a"), l = 7:9, stri...
No module named MySQLdb
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653
You need to use one of the following commands. Which one depends on what OS and software you hav...
Why is [1,2] + [3,4] = “1,23,4” in JavaScript?
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13 Answers
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How do you detect Credit card type based on number?
...a card numbers start with a 4.
MasterCard: ^5[1-5][0-9]{5,}|222[1-9][0-9]{3,}|22[3-9][0-9]{4,}|2[3-6][0-9]{5,}|27[01][0-9]{4,}|2720[0-9]{3,}$ Before 2016, MasterCard numbers start with the numbers 51 through 55, but this will only detect MasterCard credit cards; there are other cards issued using t...
Iterating over every two elements in a list
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237
You need a pairwise() (or grouped()) implementation.
For Python 2:
from itertools import izip...
Styling every 3rd item of a list using CSS? [duplicate]
Is it possible for me to style every 3rd list item?
4 Answers
4
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Backporting Python 3 open(encoding=“utf-8”) to Python 2
I have a Python codebase, built for Python 3, which uses Python 3 style open() with encoding parameter:
6 Answers
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Generate random int value from 3 to 6
...ossible in Microsoft SQL Server generate random int value from Min to Max (3-9 example, 15-99 e.t.c)
10 Answers
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fatal error: Python.h: No such file or directory
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2381
Looks like you haven't properly installed the header files and static libraries for python dev...
How can I use Homebrew to install both Python 2 and 3 on Mac?
I need to be able to switch back and forth between Python 2 and 3. How do I do that using Homebrew as I don't want to mess with path and get into trouble.
Right now I have 2.7 installed through Homebrew.
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