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Table 9 Correlation matrices for metals in ginger sample (n = 4)

From: Levels of essential and non-essential metals in ginger (Zingiber officinale) cultivated in Ethiopia

  Ca Mg Cu Zn Mn Ni Fe Co Cr Cd
Ca 1          
Mg 0.315 1         
Cu −0.907 −0.453 1        
Zn −0.289 0.680 0.310 1       
Mn 0.032 0.683 0.120 0.924 1      
Ni 0.320 0.866 −0.623 0.311 0.232 1     
Fe 0.665 0.916 −0.711 0.443 0.592 0.783 1    
Co −0.376 −0.426 0.731 0.286 0.370 −0.813 −0.438 1   
Cr −0.312 0.751 0.002 0.655 0.399 0.781 0.439 −0.450 1  
Cd −0.554 0.397 0.616 0.941 0.814 0.022 0.115 0.513 0.527 1