This forecast is a weighted average of correlated variables. shift is the number of days a is shifted forward, and r is the Pearson correlation coefficient between shifted a and b.
The model searches every combination of a, b, and shift for the highest r values. Only correlations >0.5 are used. r is used to weight each component of the forecast, and each component is scaled and aligned to the forecasted variable b. The forecast length is the average shift weighted by the average r.
Ordinary Least Squares regression is also used to scale each series from the a column as well as the final forecast.
You can choose two variables and see if they are correlated.
Infection fatality rate is calculated using the formula described by https://covid19-projections.com/estimating-true-infections-revisited.
Data is pulled daily from https://covidtracking.com
Mobility data is from google.com/covid19/mobility
Score forecasts with MSE or other metric
Feed correlated variables into ML regression model for forecasting Add Google mobility data
Add data from https://rt.live
PCA, cluster, and TSNE plot different states - In progress
Try using cointegration instead of correlation