DATA FRAME (Creation & Accessing Elements) IN R - PROGRAMMING || DATA STRUCTURES IN R

DATA FRAME

CREATION

syntax:

col_name2=c(val1,val2, . . ),
. . . . . . )
or
col_name1=c(val1,val2, . . . )
col_name2=c(val1,val2, . . . )

ACCESSING DATAFRAME

* dataframe_name[index] - return columns with specified index
* dataframe_name[c(col1,col2,...)] - return multiple columns having given index
* dataframe_name[["col_name']] - return column having given name
* dataframe_name$col_name - return column having given name
* dataframe_name$col_name[index] - return element having index in specified column

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R PROGRAMMING

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[mindgamer]

Sir plz do class on standa alone statement in r..and read and write