Rotating Data Tables / Matrices in R

 

        Rotating Data Tables / Matrices in R

 

* One can do a rotation operation over a T table / dataframe / matrix object so that the rows become the columns and the columns become the rows .

 

* For doing the rotation operation over any data table object / data frame object or a matrix object in R , one can use the t() command .

 

* One can think of such a program as short for transpose operation

 

* The given example begins with a dataframe that contains two columns of numeric data with its rows also named .

  

* The final object is transposed ( means - the rows are changed to columns and the columns are changed to rows / reversal of attributes )

 

* Also , the new object is in fact a matrix rather than a dataframe .

  

* One can see this much more clearly if one tries the same t() command over a simple vector .

* Vectors are treated like columns , but when they are displayed they look like rows

* In any event , when you apply a t() command one would get a matrix object as a result .

* One can easily convert the objects to a dataframe using the "as.dataframe()" command .