Continuous variables were shown as mean ± SD and compared by performing the Welch's t-test for variables with normal distribution or the Mann–Whitney U-test for variables with skewed distribution.
The distribution of continuous variables was tested by performing the Shapiro-Wilk test.
After a reparameterisation in non-centred form, the empirical evidence supporting a particular hypothesis is obtained by performing variable selection on the model components, using a suitably designed Gibbs sampling scheme.
An edge is drawn between two genes if the corresponding regression coefficient is significantly different from zero, which can be deciphered by performing variable selection in the regression model.
This novel statistical analysis method is especially suited for analyzing data with many variables and few observations by performing variable selection.
Baetu, drawing on his own experimental research in molecular oncology, shows that scientists probe the mechanical link by performing "two-variable experiments".
Several empirical studies have investigated the extent of bias induced by performing preliminary supervised variable selection before CV.
Most recent studies take this important point into account, either by performing variable selection for each CV iteration successively or by using class prediction methods involving an intrinsic variable selection step, like the Lasso [ 11].
PLS-DA models with error rates below 30% were optimized by performing variable selection based on a jackknife approach.
The design parameters of each configuration were determined by performing a multi-variable optimisation.
