I have a vector of observed values and also a vector of values calculated with model: actual <- c(1411,439,214,100,62,38,29,64) expected <- c(1425.3,399.5,201.6,116.9,72.2,46.3,30.4,64.8) ...

Question Why is there a significant difference between the r2_score function in scikit-learn and the formula for the Coefficient of Determination as described in Wikipedia? Which is the correct on...

Let's assume I have some data I obtained empirically: from scipy import stats size = 10000 x = 10 * stats.expon.rvs(size=size) + 0.2 * np.random.uniform(size=size) It is exponentially distribute...

I use the multinom() function from the nnet package to run the multinomial logistic regression in R. The nnet package does not include p-value calculation and t-statistic calculation. I found a way...

I am partitioning 500 samples out a 10,000+ row dataset just for sake of simplicity. Please copy and paste X and y into your IDE. X = array([ -8.93, -0.17, 1.47, -6.13, -4.06, -2.22, -2.11, -0.25...

I am using the 'bife' package to run the fixed effect logit model in R. However, I cannot compute any goodness-of-fit to measure the model's overall fit given the result I have below. I would appre...

I am not sure whether this belongs on stackoverflow or another stackexchange site - input very welcome here. I have used python OpenCV to match a target image's BRISK keypoint descriptors to - in ...

Despite having searched for two day in related questions, I have not really found an answer to this Problem yet... In the following code, I generate n normally distributed random variables, which ...