Summary functions produce a summary of all records in the found set or sub summary values for records in different groups.
Summary functions are descriptive statistics of the data(only for numeric)
Note:
If it is categorical data then summary function will give counts of the variable(var)
Example: lp.csv
Name Age Marks
surya 29 98
sivi 10 23
somu 24 99
solution:
data1<-read.csv("lp.csv")
summary(data1)
summary(data1$Marks)
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