python Programming Glossary: summing

Removing duplicate keys from python dictionary but summing the values

http://stackoverflow.com/questions/10654499/removing-duplicate-keys-from-python-dictionary-but-summing-the-values

duplicate keys from python dictionary but summing the values I have a dictionary in python d tags 0 value tags..

How to efficiently calculate a running standard deviation?

http://stackoverflow.com/questions/1174984/how-to-efficiently-calculate-a-running-standard-deviation

To do the mean I have been looping through the array and summing the value at a given index of a list. At the end I divide each..

Python: Multicore processing?

http://stackoverflow.com/questions/1182315/python-multicore-processing

MapReduce results seem limited to 100?

http://stackoverflow.com/questions/13318791/mapreduce-results-seem-limited-to-100

improve this question Your reduce function should be summing up the count values not just adding 1 for each value. Otherwise..

summing up values of columns from multiple files

http://stackoverflow.com/questions/14712268/summing-up-values-of-columns-from-multiple-files

up values of columns from multiple files I have a small problem.. 50 files and appended them but I'm having trouble actually summing the entries one by one. so I've done this for p in range 50..

Why is x**3 slower than x*x*x? [duplicate]

http://stackoverflow.com/questions/18453771/why-is-x3-slower-than-xxx

the powers of two computing each power of two as above and summing In 93 paste def smartintexp x exp result np.ones len x curexp..

Create a Pandas dataframe with counts of items spanning a date range

http://stackoverflow.com/questions/18775052/create-a-pandas-dataframe-with-counts-of-items-spanning-a-date-range

02 2 3 2001 03 2 3 2001 04 2 3 2001 05 2 3 2001 06 3 3 And summing these columns together gives those currently active and is same..

When I run it tells me this : NameError: name 'lock' is not defined?

http://stackoverflow.com/questions/20200549/when-i-run-it-tells-me-this-nameerror-name-lock-is-not-defined

work the main program should compute the final average by summing the sub sums and diving by the total number of array elements...

Recreating time series data using FFT results without using ifft

http://stackoverflow.com/questions/4451591/recreating-time-series-data-using-fft-results-without-using-ifft

just seeing the same shape. And finally note that I am summing over the full range of frequency coefficients. When I plotted.. I figured it would be easier to understand the result by summing over the full range seeing the correct result then paring back..

Django Template - New Variable Declaration

http://stackoverflow.com/questions/719127/django-template-new-variable-declaration

be reserved for very simple logic. For your example of summing up a total for example you could use the add filter. Likewise..

Python group by array a, and summarize array b - Performance

http://stackoverflow.com/questions/7538382/python-group-by-array-a-and-summarize-array-b-performance

0.2 I'd like to group by the elements in a aResult 7 3 5 summing over the elements in b Example used to summarize a probability..

sparse 3d matrix/array in Python?

http://stackoverflow.com/questions/7685128/sparse-3d-matrix-array-in-python

in code comment you'll need to define which indices you're summing over and be careful about the array lengths or things won't..