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Prepend a level to a pandas MultiIndex
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I think this is a more general solution:
# Convert index to dataframe
old_idx = df.index.to_frame()
# Insert new level at specified location
old_idx.insert(0, 'new_level_name', new_level_values)
# Convert back to MultiIndex
df.index = pandas.MultiIndex.from_frame(ol...
Java: Date from unix timestamp
I need to convert a unix timestamp to a date object.
I tried this:
10 Answers
10
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How can I easily convert DataReader to List? [duplicate]
I have data in a DataReader which I want to be converted to a List<T> .
What is a possible simple solution for this?
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Convert an array of primitive longs into a List of Longs
This may be a bit of an easy, headdesk sort of question, but my first attempt surprisingly completely failed to work. I wanted to take an array of primitive longs and turn it into a list, which I attempted to do like this:
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Calculate distance between two latitude-longitude points? (Haversine formula)
...89793;
const double RADIUS = 6378.16;
/// <summary>
/// Convert degrees to Radians
/// </summary>
/// <param name="x">Degrees</param>
/// <returns>The equivalent in radians</returns>
public static double Radians(double x)
{
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Java String to SHA1
I'm trying to make a simple String to SHA1 converter in Java and this is what I've got...
12 Answers
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android on Text Change Listener
...");
}
}
Tested this for a college assignment I was working on to convert temperature scales as the user typed them in. Worked perfectly, and it's way simpler.
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Rounding a double to turn it into an int (java)
...value is 64bit, but then your int variable can only store 32bit so it just converts it to long, which is 64bit but you can typecast it to 32bit as explained above.
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Python: TypeError: cannot concatenate 'str' and 'int' objects [duplicate]
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You can convert int into str using string function:
user = "mohan"
line = str(50)
print(user + "typed" + line + "lines")
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How do I iterate over an NSArray?
...rray
double machTimerMillisMult; // multiplier to convert mach_absolute_time() to milliseconds
IBOutlet UISlider *sliderCount;
IBOutlet UILabel *labelCount;
IBOutlet UILabel *labelResults;
}
-(IBAction) doNSArray:(id)sender;
-(IBActi...