Use Partial correlation when you suspect the relationship between 2 variables to be influenced by other variables. The partial correlation coefficient is said to be adjusted or corrected for the influence by the different covariates.
Variable Y - Variable X
Select the 2 variables of interest.
The variables that you suspect to influence the relationship between the X and Y variables.
(Optionally) enter a selection criterion in order to include only a selected subgroup of cases in the statistical analysis.
You can select a Logarithmic transformation for one or both variables.
The results window for Partial correlation displays: