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Exercise

Subsetting vectors

If we want to display only selected values from the object, R can help us do that easily.

For example, if we want to see the cost of the last 3 items in our food list, we would type:

cost[3:5]

Note here, that we could also type cost[c(3,4,5)] and get the same result. The : operator helps us condense the code and get consecutive values.

Instructions

100 XP

We will learn to subset using several special operators.

  • Use the [ and : operators to access the temperature of the first three cities in the list, which are already stored in temp.