Sentence examples for year to control for from inspiring English sources
X j,t represents other covariates (economic activity, unemployment, public expenditure on education and health, and Plan Nacer beneficiaries); δ t is a set of dummy variables indicating the year (to control for aggregate shocks); μ c,j is a set of dummy variables indicating birth-cohort/province fixed effects; and ε c,j,t standard errors clustered at the birth-cohort/province level.
We estimated λ(t) with a natural cubic spline with 5 degrees of freedom (df) per year to control for time and season trends.
These sensitivity analyses resulted in the selection of 4 df per year to control for time trend and 4 df for meteorological factors.
Finally, we included a three-way interaction term between day of the week, month, and year to control for both seasonality and time trends.
The GAMs incorporated natural cubic smooth functions of calendar time with 7 degrees of freedom (df) per year to control for long-term and seasonal trends in daily mortality.
The model includes the cross-basis for daily mean temperature, a natural cubic spline of time with 10 df / year to control for the long-term and seasonal variation, and indicator variables for day of the week.
In controlling for time trend, we tried to make the degrees of freedom closer to the number of observation years to control for year trend, and seven times as large as the number of observation years to control for year and seasonal trend.
We used other smooth functions of time and terms for individual years to control for the underlying trend in casualties and collisions over time.
Future tracking of VDG should also be based on comparing the current holiday period to its mean of previous years to control for seasonal or day-specific effects.
As the matching of cases and controls by age was not exact, the conditional logistic regression models were adjusted for age in years to control for any residual confounding.
Each case was matched to a maximum of three controls on sex, RB heritable status, and date of birth within 5 years, to control for heritability, sex, and birth cohort variations.
