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Showing posts with the label Statistics

Numpy Std (standard Deviation) Function Weird Behavior

From statistics point of view standard deviation when all values are equal should be 0. For arr1 re… Read more Numpy Std (standard Deviation) Function Weird Behavior

Fitting Negative Binomial In Python

In scipy there is no support for fitting a negative binomial distribution using data (maybe due to … Read more Fitting Negative Binomial In Python

Efficient Two Dimensional Numpy Array Statistics

I have many 100x100 grids, is there an efficient way using numpy to calculate the median for every … Read more Efficient Two Dimensional Numpy Array Statistics

Hotelling's T^2 Scores In Python

I applied pca on a data set using matplotlib in python. However, matplotlib does not provide a t-sq… Read more Hotelling's T^2 Scores In Python

Calculate Poisson Probability Percentage

When you use the POISSON function in Excel (or in OpenOffice Calc), it takes two arguments: an int… Read more Calculate Poisson Probability Percentage

Attributeerror: 'nonetype' Object Has No Attribute 'setcallsite'

In PySpark, I want to calculate the correlation between two dataframe vectors, using the following … Read more Attributeerror: 'nonetype' Object Has No Attribute 'setcallsite'

Python Negative Binomial Regression - Results Don't Match Those From R

I'm experimenting with negative binomial regression using Python. I found this example using R,… Read more Python Negative Binomial Regression - Results Don't Match Those From R

How To Use Scale And Shape Parameters Of Gamma Glm In Statsmodels

The task I have data that looks like this: I want to fit a generalized linear model (glm) to this … Read more How To Use Scale And Shape Parameters Of Gamma Glm In Statsmodels