options nocenter;

data temps;
  input city $ 1-19 temp lat long;
  cards;
Mobile, AL          44      31.2    88.5
Montgomery, AL      38      32.9    86.8
Phoenix, AZ         35      33.6   112.5
Little Rock, AR     31      35.4    92.8
Los Angeles, CA     47      34.3   118.7
San Francisco, CA   42      38.4   123.0
Denver, CO          15      40.7   105.3
New Haven, CT       22      41.7    73.4
Wilmington, DE      26      40.5    76.3
Washington, DC      30      39.7    77.5
Jacksonville, FL    45      31.0    82.3
Key West, FL        65      25.0    82.0
Miami, FL           58      26.3    80.7
Atlanta, GA         37      33.9    85.0
Boise, ID           22      43.7   117.1
Chicago, IL         19      42.3    88.0
Indianapolis, IN    21      39.8    86.9
Des Moines, IA      11      41.8    93.6
Wichita, KS         22      38.1    97.6
Louisville, KY      27      39.0    86.5
New Orleans, LA     45      30.8    90.2
Portland, ME        12      44.2    70.5
Baltimore, MD       25      39.7    77.3
Boston, MA          23      42.7    71.4
Detroit, MI         21      43.1    83.9
Minneapolis, MN      2      45.9    93.9
St. Louis, MO       24      39.3    90.5
Helena, MT           8      47.1   112.4
Omaha, NE           13      41.9    96.1
Concord, NH         11      43.5    71.9
Atlantic City, NJ   27      39.8    75.3
Albuquerque, NM     24      35.1   106.7
Albany, NY          14      42.6    73.7
New York, NY        27      40.8    74.6
Charlotte, NC       34      35.9    81.5
Raleigh, NC         31      36.4    78.9
Bismarck, ND         0      47.1   101.0
Cincinnati, OH      26      39.2    85.0
Cleveland, OH       21      42.3    82.5
Oklahoma City, OK   28      35.9    97.5
Portland, OR        33      45.6   123.2
Harrisburg, PA      24      40.9    77.8
Philadelphia, PA    24      40.9    75.5
Charleston, SC      38      33.3    80.8
Nashville, TN       31      36.7    87.6
Amarillo, TX        24      35.6   101.9
Galveston, TX       49      29.4    95.5
Houston, TX         44      30.1    95.9
Salt Lake City, UT  18      41.1   112.3
Burlington, VT       7      45.0    73.9
Norfolk, VA         32      37.0    76.6
Seattle, WA         33      48.1   122.5
Spokane, WA         19      48.1   117.9
Madison, WI          9      43.4    90.2
Milwaukee, WI       13      43.3    88.1
Cheyenne, WY        14      41.2   104.9
;

proc print;
run;

proc plot;
  plot temp*lat;
run;

proc corr;
  var temp lat long;
run;

proc reg;
  model temp=lat;
  output out=one residual=ehat predicted=yhat;
run;

proc plot;
  plot ehat*yhat;
run;

proc univariate plot;
  var ehat;
run;

proc reg;
  model temp=lat long;
run;