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What are the undocumented features and limitations of the Windows FINDSTR command?
... is not the offset of the match within the line. It is the number of bytes from the beginning of the file to the beginning of the line.
text = The binary representation of the matching line, including any <CR> and/or <LF>. Nothing is left out of the binary output, such that this example ...
Multiple linear regression in Python
...
sklearn.linear_model.LinearRegression will do it:
from sklearn import linear_model
clf = linear_model.LinearRegression()
clf.fit([[getattr(t, 'x%d' % i) for i in range(1, 8)] for t in texts],
[t.y for t in texts])
Then clf.coef_ will have the regression coefficient...
Rails 2.3-style plugins and deprecation warnings running task in Heroku
...
Yep, I realize that all the warnings came from my Heroku scripts and logs. I'll assume that (a) it's the plugin injections and (b) that the Heroku team will fix this before it becomes an actual problem.
– fearless_fool
Jan 28 '...
angular ng-bind-html and directive within it
... In line #2, ie. function(scope, element, attrs), where did you get from those three arguments, scope, element and attrs?
– spaffy
Feb 6 '15 at 15:16
1
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How can I use pointers in Java?
... cannot allocate the requested cell. This is very rare and usually results from run-away recursion.
Note that, from a language point of view, abandoning objects to the garbage collector are not errors at all. It is just something that the programmer needs to be aware of. The same variable can point...
How can I use MS Visual Studio for Android Development?
...tall_path>\jdk
_JAVA_OPTIONS = -Xms256m -Xmx512m
Download examples from here.
It works like a charm... and best so far to use.
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将 App Inventor 2 项目连接到外部传感器 · App Inventor 2 中文网
...services such as sending and receiving SMS messages or reading information from the web. The focus of this effort was to extend AppInventor’s toolset into the physical space, allowing users to easily interface with external sensors, actuators, and other hardware.
The MOIO board[1] is a low-cost, ...
URL query parameters to dict python
...
Use the urllib.parse library:
>>> from urllib import parse
>>> url = "http://www.example.org/default.html?ct=32&op=92&item=98"
>>> parse.urlsplit(url)
SplitResult(scheme='http', netloc='www.example.org', path='/default.html', query='...
Can virtual functions have default parameters?
...iding function in a derived
class does not acquire default arguments from the function it
overrides. Example:
struct A {
virtual void f(int a = 7);
};
struct B : public A {
void f(int a);
};
void m()
{
B* pb = new B;
A* pa = pb;
pa->f(); //OK, calls pa->B::f(7)
pb->f();...
Convert JavaScript string in dot notation into an object reference
...erencing them). Like asking "how can I look up a function or variable name from a string".
This is bad programming practice (unnecessary metaprogramming specifically, and kind of violates function side-effect-free coding style, and will have performance hits). Novices who find themselves in ...