PROC SGSCATTER;
    MATRIX Ozone Solar Wind Temp Day;
RUN;

PROC SGSCATTER;
    MATRIX Ozone Solar Wind Temp Day / DIAGONAL=(HISTOGRAM);
RUN;

PROC REG;
    MODEL Ozone = Solar Wind Temp Day;
RUN;

PROC REG;
    MODEL Ozone = Solar Wind Temp Day / STB;
RUN;

DATA PredictMe;
	INPUT Ozone Solar Wind Temp Day;
	DATALINES;
. 180 15 70 274
. 180 5 90 274
RUN;

DATA ozone;
	SET ozone PredictMe;
RUN;

PROC REG;
    MODEL Ozone = Solar Wind Temp Day / P;
RUN;

DATA ozone;
    SET ozone;
    Extra = 3*Solar - 2*Wind + 0.5*Temp;
RUN;

PROC REG;
    MODEL Ozone = Extra Solar Wind Temp Day / P;
RUN;