The table below shows coding example using all 3 options lined out above. Statement Normalised Type+Period Type+Period+Freq Level series (non FREQ=A or Q FREQ=A or Q or M FREQ=A or Q or M … … or M TIMETRANS=N TIMETRANS=N transformed data) … TYPE=N PER=1 Quarter on quarter FREQ=Q FREQ=Q FREQ=Q or M … TYPE=G TIMETRANS=G1 TIMETRANS=G1Q growth rate PER=1 Contribution to growth FREQ=Q FREQ=Q FREQ=Q TYPE=GC TIMETRANS=GC4 TIMETRANS=GC1Y over 1 year (quarterly PER=4 data) Contribution to growth FREQ=A FREQ=A FREQ=A TYPE=GC TIMETRANS=GC1 TIMETRANS=GC1Y over 1 year (annual PER=1 data) 3 months moving FREQ=M FREQ=M FREQ=Q or M … TYPE=A TIMETRANS=A3 TIMETRANS=A3M average PER=3 Annual index FREQ=A FREQ=A FREQ=A or Q or M … TYPE=I TIMETRANS=I1 TIMETRANS=I1Y PER=1
The table below shows coding example using all 3 options lined out above. Statement Normalised Type+Period Type+Period+Freq Level series (non transformed data) FREQ=A or Q or M … TYPE=N PER=1 FREQ=A or Q or M … TIMETRANS=N FREQ=A or Q or M … TIMETRANS=N Quarter on quarter growth rate FREQ=Q TYPE=G PER=1 FREQ=Q TIMETRANS=G1 FREQ=Q or M … TIMETRANS=G1Q Contribution to growth over 1 year (quarterly data) FREQ=Q TYPE=GC PER=4 FREQ=Q TIMETRANS=GC4 FREQ=Q TIMETRANS=GC1Y Contribution to growth over 1 year (annual data) FREQ=A TYPE=GC PER=1 FREQ=A TIMETRANS=GC1 FREQ=A TIMETRANS=GC1Y 3 months moving average FREQ=M TYPE=A PER=3 FREQ=M TIMETRANS=A3 FREQ=Q or M … TIMETRANS=A3M Annual index FREQ=A TYPE=I PER=1 FREQ=A TIMETRANS=I1 FREQ=A or Q or M … TIMETRANS=I1Y
SWG_TimeTransformation_V1.0.docx