The strength of the trend and the strength of seasonality are two crucial indicators that help in understanding the significance of trend...

Let's take a look at diesel fuel prices. An overview of the data is presented in the figure below. Analysis of Price Behavior tells us...

Let us not delve too deeply into purely theoretical conclusions and instead attempt to translate the findings of the previous post into...

hat does the future hold for us? It would be beneficial to know, so let us begin with gasoline prices. The general view of the data is...

It seems our IT specialist has done an excellent job by applying a mathematical model to optimize the profit from selling hot dogs. Using...

Why did we include advertising expenses squared in the second model? Clearly, the quality of the model is determined by the behavior of...

Our IT specialist, still selling hot dogs and analyzing sales, didn't stop there. He was advised to invest in advertising and observe the...

Life unfolds in unpredictable ways... It's hard to say what you'll be doing tomorrow. So, the guy (an IT specialist) found himself...

"Well, not all victories at once" (Pekhov V. "Under the Sign of the Manticore"), referring to the previous note. It is clear that we need...

Continuing from the previous note under the motto "don't believe your eyes," the figure displays the spread of the BIT and ETH series...

In the previous post, it was established that the number of cointegrating vectors is at least two. Therefore, we must consider pairwise...

Continuing from the previous note, it turns out that neither Bitcoin (blue) nor NVDA (yellow) have a significant impact. Let us introduce...

A forecast for the NVDA time series has been presented. The series is clearly non-stationary, showing a trend with consistent growth,...