The TIMESERIES Procedure
- Overview
- Getting Started
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Syntax
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Details
Accumulation Missing Value Interpretation Time Series Transformation Time Series Differencing Descriptive Statistics Seasonal Decomposition Correlation Analysis Cross-Correlation Analysis Spectral Density Analysis Singular Spectrum Analysis Data Set Output OUT= Data Set OUTCORR= Data Set OUTCROSSCORR= Data Set OUTDECOMP= Data Set OUTPROCINFO= Data Set OUTSEASON= Data Set OUTSPECTRA= Data Set OUTSSA= Data Set OUTSUM= Data Set OUTTREND= Data Set STATUS Variable Values Printed Output ODS Table Names ODS Graphics Names
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Examples
- References
| TREND Statement |
- TREND statistics < / options > ;
The following trend statistics are available:
- NOBS
number of observations
- N
number of nonmissing observations
- NMISS
number of missing observations
- MINIMUM
minimum value
- MAXIMUM
maximum value
- RANGE
range value
- SUM
summation value
- MEAN
mean value
- STDDEV
standard deviation
- CSS
corrected sum of squares
- USS
uncorrected sum of squares
- MEDIAN
median value
If none of the trend statistics are specified, the default is as follows:
trend n min max mean std;
The following options can be specified in the TREND statement following the slash (/):
- NPERIODS= number
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specifies the number of time periods to be stored in the OUTTREND= data set when the TRANSPOSE=YES option is specified. If the TRANSPOSE option is not specified, the NPERIODS= option is ignored. The NPERIODS= option specifies the number of OUTTREND= data set variables to contain the trend statistics and is therefore limited to the maximum allowed number of SAS variables.
If the NPERIODS= option is not specified, all of the periods specified between the ID statement START= and END= options are stored. If at least one of the START= or END= options is not specified, the default magnitude is the seasonality specified by the SEASONALITY= option in the PROC TIMESERIES statement or implied by the INTERVAL= option in the ID statement. If only the START= option or both the START= and END= options are specified and the seasonality is zero, the default is NPERIODS=5. If only the END= option or neither the START= nor END= option is specified and the seasonality is zero, the default is NPERIODS=–5.
- TRANSPOSE= NO | YES
specifies which values are recorded as column names in the OUTTREND= data set. TRANSPOSE=YES specifies that the time periods be recorded as the column names instead of the statistics as the column names. The first and last time periods stored in the OUTTREND= data set correspond to the period of the ID statement START= and END= options, respectively. If only the ID statement END= option is specified, the last time ID value of each accumulated time series corresponds to the last time period column. If only the ID statement START= option is specified, the first time ID value of each accumulated time series corresponds to the first time period column. If neither the START= option nor the END= option is specified with the ID statement, the first time ID value of each accumulated time series corresponds to the first time period column. The TRANSPOSE=NO option is useful for analyzing or displaying the trend analysis results with SAS/GRAPH procedures. The TRANSPOSE=YES option is useful for analyzing the trend analysis results with other SAS procedures or SAS Enterprise Miner software. The default is TRANSPOSE=NO.