The code in the textbook uses a C:$\backslash$ folder reference, which we are not using. It also has a quotation mark that is not in the character set that our environment can understand. Therefore, please use the following code as the starting point for this assignment:

LIBNAME sasdata $\text{'}/$home$/$michaelweinberg$0/$my$\_$shared$\_$file$\_$links$/$michaelweinberg$0/$Chapter$11\text{'}$;

DATA alaska $($DROP $=$ Year Month Day$)$;

SET sasdata.earthquakes;

IF State $=$ Alaska;

EruptionDate $=$ MDY$($Month$,$Day,Year$)$;

RUN;

PROC PRINT DATA $=$ alaska NOROWNUM;

WHERE Year GT $2005$;

VAR EruptionDate Magnitute;

TITLE 'Alaska's Earthquakes in $2005$ or Later';

FORMAT EruptionDate DATE$10.$;

RUN;

The United States Geological Survey provides data on earthquakes of historical interest. The SAS data set called EARTHQUAKES contains data about earthquakes with a magnitude greater than $2\mathrm{.}5$ in the United States and its territories. The variables are year, month, day, state, and magnitude. You assign a new employee the task of writing a program to create a data set with just the earthquakes from Alaska and then print the eruption date and magnitude for Alaskan earthquakes occurring in $2005$ or later. The following is the program the new employee gives you.

LIBNAME sasdata $$c:$\backslash$MySASLib$$;

DATA alaska $($DROP $=$ Year Month Day$)$;

$$SET sasdata.earthquakes;

$$IF State $=$ Alaska;

$91$EruptionDate $=$ MDY$($Month$,$Day,Year$)$;

RUN;

PROC PRINT DATA $=$ alaska NOROWNUM;

$$WHERE Year GT $2005$;

$$VAR EruptionDate Magnitute;

$$TITLE $$Alaska$$s Earthquakes in $2005$ or Later$$;

$$FORMAT EruptionDate DATE$10.$;

RUN;

a$.$ Examine the SAS data set including the variable labels and attributes. Identify and correct any bugs in the preceding code so that this program will run correctly.

b$.$ Add comments to your revised program for each fix so that the new employee can understand her mistakes.