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Regarding Matrix Operations
Apart from binding rows and cols using rbind and cbind , it would be more helpful, if the video suggests edit and delete operations on a matrix.

R Operations-on-Matrices-and-Data-Frames 11-12 min 50-60 sec 12-10-19, 3:49 p.m.


Thank you for your suggestions. Editing and deleting can be achieved by indexing and slicing the required rows or columns. 
12-10-19, 3:55 p.m.

12-10-19, 3:58 p.m.

We will definitely look into it. Meanwhile, you can learn to delete data from a matrix and a data frame by considering captaincy data frame used in various spoken tutorials of R from the example below -

Let us say we want to delete the 1st and 3rd columns from the captaincy data frame. To do so execute the following statement -

captaincy <- captaincy[c(-1,-3)]

If only 3rd column is to be eliminated then execute the following -

captaincy <- captaincy[-3]

If all columns from 1st to 3rd of the captaincy data frame are to be eliminated then we may execute the following statement -

captaincy <- captaincy[-1:-3]
12-10-19, 4:16 p.m. sudhakarst

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