How to weight down older data in an OLS fit
133802
How to down-weight older data in time series regression
24364
How to fit weights into Q-values with linear function approximation
16744
Trend in residuals vs dependent - but not in residuals vs fitted
110461
Fitting data without an equation
41646
Perform linear regression, but force solution to go through some particular data points
4074
How to reshape data from long to wide format
140907
Fit mixture of distributions to your time-series data in R
106358
How to make Kalman filter results equivalent to linear regression?
102141
Hacking linear regression
111400
Fit exponential distribution with noise
39548
Multicollinearity in OLS
158912
How to reduce the error in linear regression
84565
How to select a subset of variables from my original long list in order to perform logistic regression analysis?
147893
Specifying a difference in differences model with multiple time periods
21821
Reshaping multiple sets of measurement columns (wide format) into single columns (long format)
24013
Is a weighted $R^2$ in robust linear model meaningful for goodness of fit analysis?
71082
How to find a good fit for semi-sinusoidal model in R?