Variables

Hardness before cooking

Hardness after cooking

Cooking time

Density of grains

Weight of 1000 grains

Length

Width

Thickness

SI

Hardness before cooking

1

Hardness after cooking

−0.196

1

Cooking time

−0.078

−0.041

1

Density of grains

0.301

0.186

0.197

1

Weight of 1000 grains

0.164

0.405*

0.081

0.481**

1

Length

−0.034

0.527**

−0.065

0.187

0.360

1

Width

−0.169

0.460*

−0.209

0.102

0.282

0.923***

1

Thickness

−0.394*

0.476**

−0.188

0.011

0.167

0.764***

0.764***

1

Sphericity index (SI)

−0.465*

−0.118

−0.243

−0.171

−0.257

−0.335

0.017

0.330

1