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What is an intuitive explanation of the Expectation Maximization technique? [closed]
... here.
Suppose we have some data sampled from two different groups, red and blue:
Here, we can see which data point belongs to the red or blue group. This makes it easy to find the parameters that characterise each group. For example, the mean of the red group is around 3, the mean of the blue...
How to get the nth occurrence in a string?
...n unbounded length input, it needlessly creates an unbounded length array, and then throws most of it away. It would be faster and more efficient just to iteratively use the fromIndex argument to String.indexOf
– Alnitak
Jan 23 '13 at 13:31
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What’s the purpose of prototype? [duplicate]
... this.name = name;
}
}
The set_name function is created de novo each and every time you create an animal. But when you do this
animal.prototype.set_name = function(name){
this.name = name;
}
The function does not have to be re-created each time; it exists in one place in the prototype....
How do I print bold text in Python?
... you didn't just did bold, but created a whole class for them to reference and to help all users viewing. Thank you.
– GreenHawk1220
Dec 9 '16 at 21:43
3
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Case insensitive 'in'
...e list. (name.upper() for name in USERNAMES) would create only a generator and one needed string at a time - massive memory savings if you're doing this operation a lot. (even more savings, if you simply create a list of lowercase usernames that you reuse for checking every time)
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dropping infinite values from dataframes in pandas?
what is the quickest/simplest way to drop nan and inf/-inf values from a pandas DataFrame without resetting mode.use_inf_as_null ? I'd like to be able to use the subset and how arguments of dropna , except with inf values considered missing, like:
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Why would an Enum implement an Interface?
...e.g. colours). They can represent more complex objects with functionality, and so you're then likely to want to add further functionality to these - e.g. you may have interfaces such as Printable, Reportable etc. and components that support these.
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How to clear all s’ contents inside a parent ?
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Can we clone the html and manipulate on that? like var tmp = $('<div>').append($('#masterdiv').clone()).remove().html(); and get the divs inside #masterdiv of tmp and clear the contents and return
– Prasad
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What is the bit size of long on 64-bit Windows?
...o long ago, someone told me that long are not 64 bits on 64 bit machines and I should always use int . This did not make sense to me. I have seen docs (such as the one on Apple's official site) say that long are indeed 64 bits when compiling for a 64-bit CPU. I looked up what it was on 64-bit W...
How can I get stock quotes using Google Finance API?
...I from google you can use to get stock info much easier as it's REST based and doesn't require authentication. Here is a C# example jarloo.com/google-stock-api
– Kelly
Oct 6 '11 at 15:28
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