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How to read a large file - line by line?
... efficient ways in ranked order (first is best) -
use of with - supported from python 2.5 and above
use of yield if you really want to have control over how much to read
1. use of with
with is the nice and efficient pythonic way to read large files. advantages - 1) file object is automatically clo...
How to make Visual Studio copy a DLL file to the output directory?
...ion above did not work for me (VS 2013) when trying to copy the output dll from one C++ project to the release and debug folder of another C# project within the same solution.
I had to add the following post build-action (right click on the project that has a .dll output) then properties -> conf...
Using openssl to get the certificate from a server
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Alternative useful script, from madboa.com: echo | openssl s_client -connect server:port 2>&1 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > cert.pem
– rmeakins
Aug 5 '13 at 5:44
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Changing font size and direction of axes text in ggplot2
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Using "fill" attribute helps in cases like this. You can remove the text from axis using element_blank()and show multi color bar chart with a legend. I am plotting a part removal frequency in a repair shop as below
ggplot(data=df_subset,aes(x=Part,y=Removal_Frequency,fill=Part))+geom_bar(stat="id...
WPF Command Line
...you can call Console.WriteLine, but the output won't appear on the console from which you launched the app. I'm not sure what "Console" is in the context of a WPF application.
– Matt Hamilton
Nov 18 '09 at 1:55
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Remove last character from string. Swift language
How can I remove last character from String variable using Swift? Can't find it in documentation.
22 Answers
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Generic List - moving an item within the list
... {
list[i] = list[i - 1];
}
}
// put element from position 1 to destination
list[newIndex] = tmp;
}
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Transpose a data frame
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You can use the transpose function from the data.table library. Simple and fast solution that keeps numeric values as numeric.
library(data.table)
# get data
data("mtcars")
# transpose
t_mtcars <- transpose(mtcars)
# get row and colnames in order
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When to use wrapper class and primitive type
...ustom exceptions to indicate what has gone wrong. Good, I'll be doing that from now on...
– klaar
Nov 16 '17 at 8:46
1
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How do you add a Dictionary of items into another Dictionary
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Pulling straight from the SwifterSwift Library: public static func +=(lhs: inout [Key: Value], rhs: [Key: Value]) { rhs.forEach({ lhs[$0] = $1}) }
– Justin Oroz
Jun 10 '17 at 5:33
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