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Plot correlation matrix into a graph
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Quick, dirty, and in the ballpark:
library(lattice)
#Build the horizontal and vertical axis information
hor <- c("214", "215", "216", "224", "211", "212", "213", "223", "226", "225")
ver <- paste("DM1-", hor, sep="")
#Build the fa...
How to set a default value for an existing column
...in SQL Server:
ALTER TABLE Employee ADD CONSTRAINT DF_SomeName DEFAULT N'SANDNES' FOR CityBorn;
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How can I combine two HashMap objects containing the same types?
... edited Aug 2 '16 at 20:51
Andrew Tobilko
42.5k1111 gold badges6666 silver badges119119 bronze badges
answered Nov 28 '10 at 23:26
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How to read keyboard-input?
...f you use Python 2
input('Enter your input:') # If you use Python 3
and if you want to have a numeric value
just convert it:
try:
mode=int(raw_input('Input:'))
except ValueError:
print "Not a number"
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Can I restore a single table from a full mysql mysqldump file?
...extract only the table you want.
Let say the name of your table is mytable and the file mysql.dump is the file containing your huge dump:
$ sed -n -e '/CREATE TABLE.*`mytable`/,/Table structure for table/p' mysql.dump > mytable.dump
This will copy in the file mytable.dump what is located between...
Eliminate space before \begin{itemize} [closed]
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yes, but sometimes the fight is too much to handle.
– Stefano Borini
Jul 2 '09 at 12:50
30
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What is Common Gateway Interface (CGI)?
... says, it is a "common" gateway interface for everything. It is so trivial and naive from the name. I feel that I understood this and I felt this every time I encountered this word. But frankly, I didn't. I'm still confused.
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Why not infer template parameter from constructor?
... the only point of entry of the class (I am talking about copy constructor and operator=). So suppose you are using your class like this :
MyClass m(string s);
MyClass *pm;
*pm = m;
I am not sure if it would be so obvious for the parser to know what template type is the MyClass pm;
Not sure if ...
Aborting a shell script if any command returns a non-zero value?
I have a Bash shell script that invokes a number of commands.
I would like to have the shell script automatically exit with a return value of 1 if any of the commands return a non-zero value.
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Ignore with CSS?
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With css, you can "hide" the br tags and they won't have an effect:
br {
display: none;
}
If you only want to hide some within a specific heading type, just make your css more specific.
h3 br {
display: none;
}
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