::Free Statistics and Forecasting Software::

v1.1.20
 
 

:: Timeplot ::

The non-commercial (academic) use of this software is free of charge. The only thing that is asked in return is to cite this software when results are used in publications.

Server date: November 20, 2008, 10:15 am

Airline.ds by time (d = 0, D = 0, Lambda = 1)
Number of observations144
# lost observations0
Median of Time Series265.5
2 Sided Trimmed Mean at 5%272.78294573643
2 Sided Trimmed Mean at 10%269.8
2 Sided Trimmed Mean at 15%267.90909090909
Mean of Time Series280.29861111111
SE of Mean of Time Series10.032087401351
T-STAT of Mean of Time Series27.940208243536
SE of Time Series119.96631694294
Minimum value of Time Series104
Maximum value of Time Series622


ObservationOriginal SeriesWorking SeriesSig.
1112112
2118118
3132132
4129129
5121121
6135135
7148148
8148148
9136136
10119119
11104104
12118118
13115115
14126126
15141141
16135135
17125125
18149149
19170170
20170170
21158158
22133133
23114114
24140140
25145145
26150150
27178178
28163163
29172172
30178178
31199199
32199199
33184184
34162162
35146146
36166166
37171171
38180180
39193193
40181181
41183183
42218218
43230230
44242242
45209209
46191191
47172172
48194194
49196196
50196196
51236236
52235235
53229229
54243243
55264264
56272272
57237237
58211211
59180180
60201201
61204204
62188188
63235235
64227227
65234234
66264264
67302302
68293293
69259259
70229229
71203203
72229229
73242242
74233233
75267267
76269269
77270270
78315315
79364364
80347347
81312312
82274274
83237237
84278278
85284284
86277277
87317317
88313313
89318318
90374374
91413413
92405405
93355355
94306306
95271271
96306306
97315315
98301301
99356356
100348348
101355355
102422422
103465465
104467467
105404404
106347347
107305305
108336336
109340340
110318318
111362362
112348348
113363363
114435435
115491491
116505505
117404404
118359359
119310310
120337337
121360360
122342342
123406406
124396396
125420420
126472472
127548548
128559559
129463463
130407407
131362362
132405405
133417417
134391391
135419419
136461461
137472472
138535535
139622622
140606606
141508508
142461461
143390390
144432432


Summary of extreme values (applies to stationary time series only)
Values > 2 S.E.
Values <-2 S.E.
Values > 3 S.E.
Values <-3 S.E.
Remarks:
Timeplot of time series.
This is a timeplot of the Airline data. The time series exhibits a non-seasonal and a seasonal trend. Furthermore the time series shows a typical form of heteroskedasticity where the (local) standard deviation varies in proportion to the (local) trend.

To cite Wessa.net in publications use:
Wessa, P. (2008), Free Statistics Software, Office for Research Development and Education,
version 1.1.20, URL http://www.wessa.net/

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Software Version : 1.1.20
Algorithms & Software : Prof. dr. P. Wessa
Facilities : Resa R&D - Office for Research, Development, and Education
Server : www.wessa.net

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