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What does PorterDuff.Mode mean in android graphics.What does it do?
I would like to know what PorterDuff.Mode means in android graphics.
2 Answers
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Remove columns from dataframe where ALL values are NA
I'm having trouble with a data frame and couldn't really resolve that issue myself:
The dataframe has arbitrary properties as columns and each row represents one data set .
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Undo VS 'Exclude from project'?
...tion is active, the file should be there, just grayed out. Right click it, and select "Include In Project".
Include In Project
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Is there a function to make a copy of a PHP array to another?
...ike an array. Being an object however, it has reference semantics.
Edit: @AndrewLarsson raises a point in the comments below. PHP has a special feature called "references". They are somewhat similar to pointers in languages like C/C++, but not quite the same. If your array contains references, then...
Only read selected columns
...able() to skip columns. Here the data in the first 7 columns are "integer" and we set the remaining 6 columns to "NULL" indicating they should be skipped
> read.table("data.txt", colClasses = c(rep("integer", 7), rep("NULL", 6)),
+ header = TRUE)
Year Jan Feb Mar Apr May Jun
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Find unique rows in numpy.array
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+1 This is clear, short and pythonic. Unless speed is a real issue, these type of solutions should take preference over the complex, higher voted answers to this question IMO.
– Bill Cheatham
Apr 30 '14 at 13:3...
Best Way to read rss feed in .net Using C#
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This is the schizzle. Awesome and succinct. You also need to be using System.Xml; but that's fairly evident. For Blogger the url is currently "blogname.blogspot.com/feeds/posts/default" (Atom 1.0) and "blogname.blogspot.com/feeds/posts/default?alt=rss" f...
SQL Query to concatenate column values from multiple rows in Oracle
..., which works on versions prior to 11.2. Because WM_CONCAT is undocumented and unsupported by Oracle, it's recommended not to use it in production system.
With XMLAGG you can do the following:
SELECT XMLAGG(XMLELEMENT(E,ename||',')).EXTRACT('//text()') "Result"
FROM employee_names
What this doe...
Why would one declare a Java interface method as abstract?
...va Language Specification, the abstract keyword for interfaces is obsolete and should no longer be used. (Section 9.1.1.1)
That said, with Java's propensity for backwards compatibility, I really doubt it will ever make a difference whether the abstract keyword is present.
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How do I search within an array of hashes by hash values in ruby?
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Oh! You were the first one! Deleting my answer and +1.
– Milan Novota
Feb 11 '10 at 14:13
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