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Error in plot.new() : figure margins too large in R
...ect the problem is that the small figure region 2 created by your layout() call is not sufficiently large enough to contain just the default margins, let alone a plot.
Before the line causing the problem try:
par(mar = rep(2, 4))
then plot the second image
image(as.matrix(leg),col=cx,axes=T)
...
Write a program that will surely go into deadlock [closed]
...ic constructor must run no more than once and it must run before the first call to any static method in the class. Main is a static method, so the main thread calls the static ctor. To ensure it only runs once, the CLR takes out a lock that is not released until the static ctor finishes. When the ct...
How do I get the number of elements in a list?
... builtin objects with a "size" in Python, in particular, have an attribute called ob_size, where the number of elements in the object is cached. So checking the number of objects in a list is very fast.
But if you're checking if list size is zero or not, don't use len - instead, put the list in a b...
Seedable JavaScript random number generator
...t Math.random() function returns a random value between 0 and 1, automatically seeded based on the current time (similar to Java I believe). However, I don't think there's any way to set you own seed for it.
...
error: request for member '..' in '..' which is of non-class type
...that case If we change to Foo foo2 , the compiler might show the error " call of overloaded ‘Foo()’ is ambiguous".
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What is a bus error?
...r when your processor cannot even attempt the memory access requested, typically:
using a processor instruction with an address that does not satisfy its alignment requirements.
Segmentation faults occur when accessing memory which does not belong to your process, they are very common and are ty...
Convert NSArray to NSString in Objective-C
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Won't this accomplish the same thing as calling [array description]?
– TechZen
Dec 1 '09 at 20:55
10
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Expression Versus Statement
...was one unit of execution, a thing that you did. The only reason it wasn't called a "line" was because sometimes it spanned multiple lines. An expression on its own couldn't do anything... you had to assign it to a variable.
1 + 2 / X
is an error in FORTRAN, because it doesn't do anything. You ha...
Using getopts to process long and short command line options
...
For example, here's an example of using GNU getopt, from a script of mine called javawrap:
# NOTE: This requires GNU getopt. On Mac OS X and FreeBSD, you have to install this
# separately; see below.
TEMP=`getopt -o vdm: --long verbose,debug,memory:,debugfile:,minheap:,maxheap: \
-n ...
Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
...ns. e.g Eclipse, Visual Studio.
A Library is a chunk of code that you can call from your own code, to help you do things more quickly/easily. For example, a Bitmap Processing library will provide facilities for loading and manipulating bitmap images, saving you having to write all that code for you...