Useful tips for everyday
What is the purpose of a meta model? A metamodel or surrogate model is a model of a model, and metamodeling is the process of…
How do you create a statistical model? 7 Practical Guidelines for Accurate Statistical Model Building Remember that regression coefficients are marginal results. Start with univariate…
Is coefficient of variation affected by sample size? The sample size varies among species and characters, being necessary a larger sample size to estimate the…
What does the Jacobian represent geometrically? The Jacobian matrix represents the differential of f at every point where f is differentiable. This means that the…
What is the difference between AB testing and multivariate testing? Multivariate testing uses the same core mechanism as A/B testing, but compares a higher number…
When do you adjust p-value for multiple comparisons? Use for multiple comparisons in ANOVA, the adjusted p-value indicates which factor level comparisons within a family…
What is the difference between difference stationary and trend-stationary? Trend stationary: The mean trend is deterministic. Once the trend is estimated and removed from the…
Are paired t tests independent? Two-sample t-test is used when the data of two samples are statistically independent, while the paired t-test is used when…
How to choose the best PLS model for your data? When using PLS, select a model with the smallest number of components that explain a…
What is a significant mean difference? A statistically significant difference is simply one where the measurement system (including sample size, measurement scale, etc.) was capable…