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Extract month and year from a zoo::yearmon object
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Use the format() method for objects of class "yearmon". Here is your example date (properly created!)
date1 <- as.yearmon("Mar 2012", "%b %Y")
Then we can extract the date parts as required:
> format(date1, "%b") ## Month, c...
How to filter rows in pandas by regex
...k what you expect.
Alternatively you can use contains with regex option. For example:
foo[foo.b.str.contains('oo', regex= True, na=False)]
Result:
a b
1 2 foo
na=False is to prevent Errors in case there is nan, null etc. values
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Produce a random number in a range using C#
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You can try
Random r = new Random();
int rInt = r.Next(0, 100); //for ints
int range = 100;
double rDouble = r.NextDouble()* range; //for doubles
Have a look at
Random Class, Random.Next Method (Int32, Int32) and Random.NextDouble Method
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try/catch + using, right syntax
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I prefer the second one. May as well trap errors relating to the creation of the object as well.
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When to use Spring Integration vs. Camel?
...t sense in a recent project requiring some (JMS) messaging capabilities ( more details ). After some days working with Spring Integration it still feels like a lot of configuration overhead given the amount of channels you have to configure to bring some request-response (listening on different JMS ...
How do you make a web application in Clojure? [closed]
I suppose this is a strange question to the huge majority of programmers that work daily with Java. I don't. I know Java-the-language, because I worked on Java projects, but not Java-the-world. I never made a web app from scratch in Java. If I have to do it with Python, Ruby, I know where to go (Dja...
Add new row to dataframe, at specific row-index, not appended?
The following code combines a vector with a dataframe:
4 Answers
4
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Animation CSS3: display + opacity
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to support all browsers.. ?
– david_adler
Oct 25 '13 at 16:41
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How to hide action bar before activity is created, and then show it again?
...ER requestFeature
This creates the ActionBar and immediately hides it before it had the chance to be displayed.
But now there is another problem. After putting windowActionBar="false" in the theme, the Activity draws its normal Window Title instead of an ActionBar.
If we try to avoid this by usin...
Codeigniter - no input file specified
I am a beginner in Codeigniter and I saw a CI tutorial and was just trying to do a simple thing. I downloaded the CI and added this file to controller directory, but it won't work.
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