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Questions tagged [pacf]

5 questions
2
votes
1 answer

ARIMA predictions look shifted by one unit of time

I am using statsmodels ARIMA (1,2,1) to predict the monthly demand for a product. The predictions look like they are shifted to the right by one month. I wonder if the statsmodels.ARIMA.Residuals.predict returns something different than the monthly…
Gloksinya
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Understanding plotted ACF on stationary time-series data

I made time-series data stationary and plotter ACF & PCF, while PCF looks fine, I do not know how to interpretate ACF, as it looks like this - I could not say it geometrical. For PACF - it is Significant till 1 lag
Zexxxx
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0
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ACF and PACF Autocorrelation

I have been trying to Understand correlation and tried it on my project and need help interpreting for a my case and in general. I have the following results but finding it hard to interpret. click here for acf image Is there anyone who understands…
Angie
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0 answers

Time series analysis for document published date and read date

I want to find whether there is a particular hour when the author should publish the documents online to get maximum views/reads. Data looks something like this - Document ID Published Date Read Date 1 1/1/2022 10:00:00 1/1/2022…
Kriti
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0
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1 answer

PACF for Airline Passengers dataset: What's wrong?

The airline passengers dataset is available here, but it also comes with in R. I'm working with python, and I import the following (besides the usual like pandas and numpy.) from statsmodels.tsa.stattools import pacf,acf from statsmodels.graphics…
An old man in the sea.
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