The grouped lasso would allow all variables encoding a compound hypothesis to be selected at the same time, and prevent only one component variable of a compound hypothesis being identified on its own.
We constructed a compound variable of factors related to the role of a husband or partner in the final model: IPV in pregnancy, IPV in the last year, and report that women had not discussed pregnancy with their husband or partner.
Second, we created a summary variable of exposure to all compounds of interest for each participant to assess exposure to multiple pollutants.
The compounds displayed a variable pattern of PARP-1/2 enzymes inhibition profile that, in part, paralleled the antiproliferative activity in cell lines.
The compounds displayed a variable pattern of target inhibition profile that, in part, paralleled the antiproliferative activity in cell lines characterized by homologous recombination defects.
It is difficult to determine the impact of a single variable of interest due to other compounding variables in a particular design.
To measure the importance of an individual variable (compound), Gini indexes are compared for a tree containing the variable to a tree obtained by permuting the variable.
Because this study identified a range of compounds showing variable inhibitory effects on phosphoinositide production, we then assessed VPA and five related compounds for effects on inositol levels in acutely treated Dictyostelium cells (Fig. 5).
Researchers test many dosage variables of the compound by administering various concentrations to the animals, changing how often the drug is given (frequency), and how long the drug is administered for.
Square, square root, log 10 or inverse transformations were conducted to some of the variables of phenolic compounds.
[25] Ferrosic hydroxide belongs to a variable and wide range of mixed valence compounds named green rusts for which general compositions have been proposed which vary from Fe2(OH)5 (ref. [32]) to (Fe11(1 - x Fe111 x - OH 2)x+ (x/nAn- m/nH2O)x-, (ref. [34]) where A can be the anions OH-, CO3, Cor 2- or SO4 2-.
