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Parseval
  • Member for 5 years, 2 months
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6 votes
1 answer
5k views

Facebook prophet gives a very high MAPE, how can I improve it?

4 votes
1 answer
339 views

Why is $Z_t$ uncorrelated with $X_{t-1}$ in $X_t=\theta X_{t-1}+Z_t$?

2 votes
1 answer
343 views

Parametric test if underlying assumption is gamma distribution

2 votes
2 answers
1k views

Statistical test for 3 groups (A/B/C test) for binary outcome. (binary dependent variable)

2 votes
1 answer
158 views

Check if log-likelihood function is correctly derived

1 vote
0 answers
48 views

Can't properly estimate parameters from simulation [closed]

1 vote
1 answer
168 views

How to find the likelihood given data?

1 vote
1 answer
76 views

Simulating a simple queueing problem to calculate $\Pr(B > 4).$ If-statement not working as I expect it

1 vote
0 answers
26 views

What statistical test to choose if I aim to find out differences in mean between two groups but data is zero-inflated? [duplicate]

1 vote
1 answer
3k views

Logistic LASSO regression model in R (glmnet) - predictions very close to 0.5 and bad misclassification error

1 vote
0 answers
159 views

Statistical test for recommendation algorithms

0 votes
1 answer
63 views

Is this an expected behavior of an ARIMA(0,0,4,1,1,1)

0 votes
1 answer
33 views

Conflicting answers in R depending on if the proportions test is two sided or one sided

0 votes
0 answers
28 views

Daily monitoring of churn prediction model

0 votes
0 answers
55 views

Predict customer profitability where profitability has a distribution that is zero-inflated and continuous

0 votes
1 answer
179 views

Sales forecasting. What model to choose and how to interpret ACF/PACF?

0 votes
1 answer
55 views

Why does glm in R create new variables upon training?

0 votes
0 answers
440 views

Simulating Brownian motion in R. Is this correct?