Back to list of Stocks See Also: Seasonal Analysis of EAC, Genetic Algorithms Stock Portfolio Generator,
and Fourier Calculator

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Fourier Analysis of EAC (ERICKSON INC)

Click on the checkboxes shown on the right to see how the various frequencies contribute to the graph.
Look for large magnitude coefficients (sine or cosine), as these are associated with frequencies which
contribute most to the associated stock plot. If you find a large magnitude coefficient which dramatically
changes the graph, look at the associated "Period" in weeks, as you may have found a significant recurring
cycle for the stock of interest.
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Fourier Analysis

EAC (ERICKSON INC) appears to have interesting cyclic behaviour every (-79228162514264337593543950335*cosine), (-79228162514264337593543950335*cosine), and (-79228162514264337593543950335*cosine).

EAC (ERICKSON INC) has an average price of 1.56 (topmost row, frequency = 0).

EAC (ERICKSON INC) has an average price of 1.56 (topmost row, frequency = 0).

Right click on the graph above to see the menu of operations (download, full screen, etc.)

Using data from 11/18/2016 to 9/5/2017 for EAC (ERICKSON INC), this program was able to calculate the following Fourier Series:

Sequence # | Cosine Coefficients | Sine Coefficients | Frequencies | Period | ||
---|---|---|---|---|---|---|

0 | 1.56314 |
| 0 | |||

1 | -2.49787 |
| -1.13968 |
| (1*2π)/8 | 8 weeks |

2 | 1.48378 |
| 1.4625 |
| (2*2π)/8 | 4 weeks |

3 | -.42958 |
| -1.03468 |
| (3*2π)/8 | 3 weeks |

4 | .05128 |
| (4*2π)/8 | 2 weeks | ||

5 | -.42958 |
| 1.03468 |
| (5*2π)/8 | 2 weeks |

6 | 1.48378 |
| -1.4625 |
| (6*2π)/8 | 1 weeks |

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