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Generate 'n' unique random numbers within a range [duplicate]
...placement:
>>> import random
>>> random.sample(range(1, 100), 3)
[77, 52, 45]
random.sample takes a population and a sample size k and returns k random members of the population.
If you have to control for the case where k is larger than len(population), you need to be prepared...
Fastest way to list all primes below N
...
+100
Warning: timeit results may vary due to differences in hardware or
version of Python.
Below is a script which compares a number o...
How to give border to any element using css without adding border-width to the whole width of elemen
...dding cut inside the box. You can now safely declare your element to be of 100% width, including pixel-based padding and border, and accomplish your goal perfectly.
-webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
-moz-box-sizing: border-box; /* Firefox, other Gecko */
box-sizing:...
pandas DataFrame: replace nan values with average of columns
...ion from the test set into the training set! Imagine it like this: We have 100 data rows and we consider column x. The first 99 entries of x are NA. We want to split off row 100 as a test set. Let's assume row 100 has value 20 in column x. Then you will replace all entries in the training set in col...
Set the absolute position of a view
...ibutes.
The following example will place a 20x20px ImageView at position (100,200) using a FrameLayout as fullscreen container:
XML
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/root"
android...
Reading/writing an INI file
...s.ini");
You can write some values like so:
MyIni.Write("DefaultVolume", "100");
MyIni.Write("HomePage", "http://www.google.com");
To create a file like this:
[MyProg]
DefaultVolume=100
HomePage=http://www.google.com
To read the values out of the INI file:
var DefaultVolume = MyIni.Read("DefaultV...
How to pass command line argument to gnuplot?
...c switch with a script that contains lines such as plot 'data' using 0:($1/100). gnuplot dies with the error invalid expression because $1 is disappeared. Where am I wrong? Note that without -c, the script runs succefully.
– lorcap
Sep 30 '15 at 15:43
...
Code-first vs Model/Database-first [closed]
...generated. The initial migration is your current schema
or your baseline v1.0. From that point on you will add migrations
which are timestamped and labeled with a descriptor to help with
ordering of versions. When you call add-migration from the package
manager, a new migration file will be ...
What does multicore assembly language look like?
... of the first instruction that the processor will execute as:
CS = XX * 0x100
IP = 0
Remember that CS multiples addresses by 0x10, so the actual memory address of the first instruction is:
XX * 0x1000
So if for example XX == 1, the processor will start at 0x1000.
We must then ensure that ther...
what is the difference between a portlet and a servlet?
... 154(Servlet 2.5 & 2.4).
Portlet Specifications - JSR 168(Portlet Spec v1.0), JSR 286(Portlet Spec v2.0), JSR 362(Portlet Spec v3.0)
Deployment of Portlets involves different approach than a Servlet application. Some Providers (Liferay/Alfresco/WebSphere) support hot-deploying of portlets witho...