I have several records with a given attribute, and I wan开发者_运维百科t to find the standard deviation.
This question already has answers here: How do I determine the standard deviation (stddev) of a set of values?
I am trying to get the standard deviation of a user input开发者_Go百科 string. I have as follows, but it returns the wrong value for SD. The calculation should go as follows:
The assignment is to create a program that will read from standard input (a file containing a list of integers) into an array, and then finding the mean, max, min, median, and standard deviation of th
I need a standard deviation function in SQLite. I have found one here: http://www.sqlite.org/contrib?orderby=date
Is there a function that given a vector of numbers, returns another vector with the standard units corresponding to each value?
I am trying to calculate Z-scores using PHP. Essentially, I am looking for the most efficient way to calculate the mean and standard deviation of开发者_运维技巧 a data set (PHP array). Any suggestions
I\'m writing a c extension to calculate he standard deviation.Performance is important because it will be performed over large data sets.I\'m having a hard time figuring out how to get the value of py
I would like to reproduce the following figure in MATLAB: There are two classes of points with X and Y coordinates. I\'d like to surround each class with an ellipse with one parameter of standard d
I am trying to calculate value $x in a number series based on an array of numbers (as $numbers). Ex: $numbers = array(1=>1000,2=>600,3=>500,4=>450,5=>425,6=>405,7=>400,8=>396
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