How to build a correlation matrix in R?

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How to build a correlation matrix in R?
Aug 15 in Data Analytics by payal
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1 answer to this question.

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@payal, You want to find the correlation matrix between data frame fields?

Use cor function to find the correlation matrix, but the fields should be numeric

> cor(iris[1:4])
             Sepal.Length Sepal.Width Petal.Length Petal.Width
Sepal.Length    1.0000000  -0.1175698    0.8717538   0.8179411
Sepal.Width    -0.1175698   1.0000000   -0.4284401  -0.3661259
Petal.Length    0.8717538  -0.4284401    1.0000000   0.9628654
Petal.Width     0.8179411  -0.3661259    0.9628654   1.0000000
answered Oct 28 by Cherukuri
• 32,260 points

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