Question: NOTE: THIS IS R PROGRAMMING: Discuss how to solve the following problems use R code. Youre not just writing the R code, you are also
NOTE: THIS IS R PROGRAMMING: Discuss how to solve the following problems use R code. Youre not just writing the R code, you are also discussing the process.
Considering the following data frame called items (note the row names and column names):
| store id | item name | price | |
| entry 1 | 1 | milk | $1.99 |
| entry 2 | 2 | egg | $0.99 |
| entry 3 | 3 | fish | $1.99 |
| entry 4 | 4 | pork | $3.99 |
| entry 5 | 5 | beef | $4.99 |
Write R code(s) to:
retrieve all the information for entry2;
Retrieve all the item names;
Use two ways to retrieve beef;
Retrieve the item name and price columns for store id greater than 3.
The resulting data frame for (d) should look like below.
| item name | price | |
| entry 4 | pork | $3.99 |
| entry 5 | beef | $4.99 |
Considering this function header: myFun=function(first=10,second=20,third=30,fourth=40), List the values of first, second, third, and fourth when we call myFun in the following ways.
myFun()
myFun(second=60,70)
myFun(fourth=10,first=20,50,80)
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