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How to draw an empty plot?
... coordinate system, so you need plot.new() and plot.window(), then you can start to add graph elements:
plot.new( )
plot.window( xlim=c(-5,5), ylim=c(-5,5) )
points( rnorm(100), rnorm(100) )
axis( side=1 )
example plot
s...
display:inline vs display:block [duplicate]
... of the screen
span default styling is display:inline block :span does not start on a new line and only takes up as much width as necessary
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How is the 'use strict' statement interpreted in Node.js? [duplicate]
I have started to explore the Node.js and wrote many demo web application, to understand the flow of Node.js, Express.js, jade, etc..
...
Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
...e a string buffer to unicode.
This function is only available at Python start-up time, when Python scans the environment. It has to be called in a system-wide module, sitecustomize.py, After this module has been evaluated, the setdefaultencoding() function is removed from the sys module.
The on...
How do you input commandline argument in IntelliJ IDEA?
...
Same thing but start with CTRL+ALT+D for debug configuration on OS X 10.5+ schema.
– michaelsnowden
Jul 18 '16 at 18:16
...
Turn off deprecated errors in PHP 5.3
...y WordPress install is spitting these errors out on me, causing my session_start() to break.
9 Answers
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Color text in terminal applications in UNIX [duplicate]
I started to write a terminal text editor, something like the first text editors for UNIX, such as vi. My only goal is to have a good time, but I want to be able to show text in color, so I can have syntax highlighting for editing source code.
...
Haskell Type vs Data Constructor
...ere a value is expected.
Data constructors
To make things simple, we can start with an example of a type that represents a colour.
data Colour = Red | Green | Blue
Here, we have three data constructors. Colour is a type, and Green is a constructor that contains a value of type Colour. Similarly...
Big O, how do you calculate/approximate it?
...ting the number of steps. And by definition, every summation should always start at one, and end at a number bigger-or-equal than one.
f(N) = Summation(i from 1 to N)( Summation(j = 1 to (N - (i - 1) * 2)( C ) )
(We are assuming that foo() is O(1) and takes C steps.)
We have a problem here: when...
如何查看Oracle用户的SQL执行历史记录？ - 数据库(内核) - 清泛网 - 专注C/...
....arc',options=>dbms_logmnr.new);
--开始miner
SQL> execute dbms_logmnr.start_logmnr(options=>dbms_logmnr.dict_from_online_catalog);
--查看结果
SQL> col username format a8;
SQL> col sql_redo format a50
SQL> select username,scn,timestamp,sql_redo from v$logmnr_contents where table_name='T...