Time Series

Time Specification

Time Type Start Date End Date Increment No. observed
MONTH 1973-01-01 1978-12-01 1 72

Exponential Smoothing: Parameter and Error Estimates [USAccDeaths]

Alpha Beta Gamma SSE MSE RMSE
0.999934 --- --- 3.78523e+07 533132 730.159

Exponential Smoothing: Coefficient Estimates [USAccDeaths]

Level
9239.96

Double Exponential Smoothing: Parameter and Error Estimates [USAccDeaths]

Alpha Beta Gamma SSE MSE RMSE
1 0.109594 --- 4.58233e+07 654619 809.085

Double Exponential Smoothing: Coefficient Estimates [USAccDeaths]

Level Trend
9240 40.5777

Fitted Values and Residuals for Model Fit [USAccDeaths]

Date/Time USAccDeaths Exponential: Fitted Values Exponential: Residuals Double-Exponential: Fitted Values Double-Exponential: Residuals
1973-01-01 9007
1973-02-01 8106 9007 -901
1973-03-01 8928 8106.06 821.94 7205 1723
1973-04-01 9137 8927.95 209.054 8215.83 921.17
1973-05-01 10017 9136.99 880.014 8525.78 1491.22
1973-06-01 10826 10016.9 809.058 9569.21 1256.79
1973-07-01 11317 10825.9 491.053 10515.9 801.051
1973-08-01 10744 11317 -572.968 11094.7 -350.739
1973-09-01 9713 10744 -1031.04 10483.3 -770.3
1973-10-01 9938 9713.07 224.932 9367.88 570.12
1973-11-01 9161 9937.99 -776.985 9655.36 -494.362
1973-12-01 8927 9161.05 -234.051 8824.18 102.817
1974-01-01 7750 8927.02 -1177.02 8601.45 -851.451
1974-02-01 6981 7750.08 -769.078 7331.14 -350.137
1974-03-01 8038 6981.05 1056.95 6523.76 1514.24
1974-04-01 8422 8037.93 384.07 7746.72 675.285
1974-05-01 8714 8421.97 292.025 8204.72 509.278
1974-06-01 9512 8713.98 798.019 8552.54 959.464
1974-07-01 10120 9511.95 608.053 9455.69 664.313
1974-08-01 9823 10120 -296.96 10136.5 -313.492
1974-09-01 8743 9823.02 -1080.02 9805.14 -1062.14
1974-10-01 9129 8743.07 385.929 8608.73 520.268
1974-11-01 8710 9128.97 -418.974 9051.75 -341.75
1974-12-01 8680 8710.03 -30.0277 8595.3 84.7038
1975-01-01 8162 8680 -518.002 8574.58 -412.579
1975-02-01 7306 8162.03 -856.034 8011.36 -705.363
1975-03-01 8124 7306.06 817.943 7078.06 1045.94
1975-04-01 7870 8123.95 -253.946 8010.69 -140.688
1975-05-01 9387 7870.02 1516.98 7741.27 1645.73
1975-06-01 9556 9386.9 169.1 9438.63 117.368
1975-07-01 10093 9555.99 537.011 9620.49 472.506
1975-08-01 9620 10093 -472.964 10209.3 -589.278
1975-09-01 8285 9620.03 -1335.03 9671.7 -1386.7
1975-10-01 8466 8285.09 180.912 8184.72 281.277
1975-11-01 8160 8465.99 -305.988 8396.55 -236.55
1975-12-01 8034 8160.02 -126.02 8064.63 -30.6252
1976-01-01 7717 8034.01 -317.008 7935.27 -218.269
1976-02-01 7461 7717.02 -256.021 7594.35 -133.348
1976-03-01 7767 7461.02 305.983 7323.73 443.266
1976-04-01 7925 7766.98 158.02 7678.31 246.687
1976-05-01 8623 7924.99 698.01 7863.35 759.652
1976-06-01 8945 8622.95 322.046 8644.6 300.398
1976-07-01 10078 8944.98 1133.02 8999.52 1078.48
1976-08-01 9179 10077.9 -898.925 10250.7 -1071.72
1976-09-01 8037 9179.06 -1142.06 9234.26 -1197.26
1976-10-01 8488 8037.08 450.925 7961.05 526.949
1976-11-01 7874 8487.97 -613.97 8469.8 -595.802
1976-12-01 8647 7874.04 772.959 7790.51 856.495
1977-01-01 7792 8646.95 -854.949 8657.37 -865.372
1977-02-01 6957 7792.06 -835.057 7707.53 -750.533
1977-03-01 7726 6957.06 768.945 6790.28 935.721
1977-04-01 8106 7725.95 380.051 7661.83 444.172
1977-05-01 8890 8105.97 784.025 8090.51 799.493
1977-06-01 9299 8889.95 409.052 8962.13 336.874
1977-07-01 10625 9298.97 1326.03 9408.05 1216.95
1977-08-01 9302 10624.9 -1322.91 10867.4 -1565.42
1977-09-01 8314 9302.09 -988.087 9372.86 -1058.86
1977-10-01 8850 8314.07 535.935 8268.81 581.188
1977-11-01 8265 8849.96 -584.965 8868.51 -603.507
1977-12-01 8796 8265.04 530.961 8217.37 578.634
1978-01-01 7836 8795.96 -959.965 8811.78 -975.781
1978-02-01 6892 7836.06 -944.063 7744.84 -852.841
1978-03-01 7791 6892.06 898.938 6707.38 1083.62
1978-04-01 8192 7790.94 401.059 7725.13 466.866
1978-05-01 9115 8191.97 923.027 8177.3 937.701
1978-06-01 9434 9114.94 319.061 9203.07 230.934
1978-07-01 10484 9433.98 1050.02 9547.37 936.625
1978-08-01 9827 10483.9 -656.931 10700 -873.023
1978-09-01 9110 9827.04 -717.043 9947.35 -837.345
1978-10-01 9070 9110.05 -40.0474 9138.58 -68.5772
1978-11-01 8633 9070 -437.003 9091.06 -458.062
1978-12-01 9240 8633.03 606.971 8603.86 636.139