---
title: Periodogram Analysis | Time Series Analysis Software | Statgraphics
description: Periodogram STATBEANS® is a set of Java Beans which perform periodogram analysis. Learn about Statgraphics' products for time series analysis software here!
---

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<https://www.statgraphics.com/statbeans/calculations/periodogram#anchor3>

# Calculation STATBEANS®

 

**STATBEAN Name:** Periodogram

**Purpose:** Time series analysis software that performs a periodogram analysis.

**DataSource for periodogram analysis: **any. 

**Time Series Analysis Software Read/Write Properties**

| **Name** | **Type** | **Description** | **Possible Values** | **Default Value** |
| --- | --- | --- | --- | --- |
| removeMean | boolean | whether to subtract mean from time series before calculating periodogram. | true,false | true |
| seasonalLength | int | The number of time periods comprising a season. | 1+ | 1 |
| taper | double | Amount of tapering to apply at each end of time series (as a percentage). | 0.0-50.0 | 0.0 |
| timeSeriesVariableName | String | The name of the column with data values to be plotted. | Any string. | "" |

**Other Public Methods For Periodogram Analysis**

| **Name** | **Description** | **Arguments** | **Return Value** |
| --- | --- | --- | --- |
| double getCumulativeSum(int i) | Returns the sum of the first i+1 ordinates. | Index. | Cumulative sum. |
| double getFrequency(int i) | Returns the i-th Fourier frequency. | Index. | Frequency. |
| int getNumberOfMissingValuesReplaced() | Returns the number of missing values replaced with estimates. | None. | Number replaced. |
| int getNumberOfOrdinates() | Returns the number of ordinates (or frequencies). | None. | Number. |
| double getOrdinate(int i) | Returns the periodogram ordinate at the i-th frequency. | Index. | Ordinate. |
| double getSum() | Returns the sum all the ordinates. | None. | Sum. |
| int getSampleSize() | Returns the number of data values used to obtain estimates. | None. | Sample size. |

**Output Variables**

| **Name** | **Description** |
| --- | --- |
| Cumulative Sum | Cumulative sum of oridinates. |
| Frequency | Fourier frequencies. |
| Ordinate | Periodogram ordiantes. |

**Time Series Analysis Software Code Sample**   
- see [PeriodogramPlot](https://www.statgraphics.com/statbeans/graphical/periodogram_plot).

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