PACKAGE |
|STAT Data Manipulation and Analysis,
by Gary Perlman
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NAME |
ts - time series analysis
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SYNOPSIS |
ts [-aeps] [-b base] [-c lag] [-i interval] [-l length]
[-P style] [-n number] [-w width]
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DESCRIPTION |
ts performs a variety of time series analyses on ordered data read
from the standard input.
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OPTIONS |
- -a
- requests no axes around plot.
- -b base
-
set the base label of the time series.
- -c lag
-
print (auto)correlation of lags 1:lag. These can be useful for
detecting cycles and other trends within the data. The output
for a lag of zero is the correlation of the time series with the
numbers 1 through the length of the time series.
- -e
- echo the time series (may be useful with the -l option).
- -i size
-
set the interval size for plot labels.
- -l length
-
sets the length of the time series. This can be useful for
summarizing, or for comparing time series of different lengths.
- -n N
- number the output lines of plots every N points.
- -p
- requests a time series plot. A vertical mean line is used for
the center of the plot.
- -P plotnum
-
Plot type. The default (type 1) plots points as deviations from
the mean. Plot type 2 plots points as lines above the minimum.
A line plot of the range indicating the mean and standard
deviation surround plots.
- -s
- Print summary statistics.
- -w width
-
Plot width (default: 70).
The following standard help options are supported.
The program exits after displaying the help.
- -L
- Display limits
- -O
- Display options and values
- -V
- Display version number and date
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EXAMPLES |
Side-by-side plots can compare trends in series of different lengths:
ts -p -w 20 -l 30 < data1 > plot1
ts -p -w 20 -l 30 < data2 > plot2
pr -m plot1 plot2
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LIMITS |
Use the -L option to determine the program limits.
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MISSING VALUES |
Missing data values (NA) are counted but not included in the analysis.
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SEE ALSO |
stats for simple univariate statistics.
desc for univariate descriptive statistics and analysis.
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UPDATED |
January 20, 1987
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