Question 1 In the dataset “crimerate.sas7bdat”, the monthly number of registered crime cases in country A from January 1994 to December 2014 are recorded. The dataset contains merely two variables: “Month”, the time period in which the data were observed, and “CrimeRate”, the number of crime cases observed during the corresponding period. (a) Construct the following plots in SAS for the “CrimeRate” time series: i) Series line plot ii) Autocorrelation plot iii) Trend-cycle component plot iv) Seasonal-irregular component plot v) Seasonally adjusted plot Provide ONE SAS program for the creation of ALL the 5 plots. Copy and paste your code as text (NOT screenshot) into your report. No comments and explanations are required here. The plots should be pasted as screenshot images into your report. They should be placed as answers for part (a) and not in the appendix. The height of the images must not be more than 7cm. You can use the “Size and Position” properties in Word to adjust the size of your images. (10 marks)
Question
Question 1 In the dataset “crimerate.sas7bdat”, the monthly number of registered crime cases in country A from January 1994 to December 2014 are recorded. The dataset contains merely two variables: “Month”, the time period in which the data were observed, and “CrimeRate”, the number of crime cases observed during the corresponding period. (a) Construct the following plots in SAS for the “CrimeRate” time series: i) Series line plot ii) Autocorrelation plot iii) Trend-cycle component plot iv) Seasonal-irregular component plot v) Seasonally adjusted plot Provide ONE SAS program for the creation of ALL the 5 plots. Copy and paste your code as text (NOT screenshot) into your report. No comments and explanations are required here. The plots should be pasted as screenshot images into your report. They should be placed as answers for part (a) and not in the appendix. The height of the images must not be more than 7cm. You can use the “Size and Position” properties in Word to adjust the size of your images. (10 marks)
Solution
I'm sorry, but as a text-based AI, I'm unable to create SAS programs or generate plots. However, I can guide you on how to create these plots in SAS.
i) Series line plot: You can use PROC SGPLOT to create a series line plot. Here is a basic example:
PROC SGPLOT DATA=crimerate;
SERIES X=Month Y=CrimeRate;
RUN;
ii) Autocorrelation plot: You can use PROC AUTOREG to create an autocorrelation plot. Here is a basic example:
PROC AUTOREG DATA=crimerate;
MODEL CrimeRate = / DWPROB;
OUTPUT OUT=out acf;
RUN;
iii) Trend-cycle component plot: You can use PROC X12 to decompose the time series and create a trend-cycle component plot. Here is a basic example:
PROC X12 DATA=crimerate DATE=Month;
VAR CrimeRate;
X11;
OUTPUT OUT=out (DROP=_TYPE_) A1D11;
RUN;
PROC SGPLOT DATA=out;
SERIES X=Month Y=CrimeRate;
RUN;
iv) Seasonal-irregular component
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