"General" Data Table
Column Heading Column Description
Series Name Name of series. This is the name argument in the series spec, if given, or the name of the output files otherwise.
View Spec File Press the button to show the spec file that was used to adjust the series. Only works if the row was added automatically when the series was run.
FilenameName of the output files
Period Number of observations per year.
Transform Transformation. Includes "**" if the transformation was automatically selected.
Mode Seasonal adjustment mode. Includes "**" if the mode was automatically selected.
Span Span of data adjusted.
Outlier Span Span of data checked for outliers.
AO/LS/TC Crit Val Critical |t| values for additive outliers, level shifts, and temporary changes, separated by a slash. "*" indicates it was chosen by X-13ARIMA-SEATS; "--" indicates this type of outlier was not searched for.
# Outliers Number of hard-coded and automatically selected outliers.
# Auto Number of outliers automatically selected.
# Iter Number of iterations to reach convergence. If the maximum number of iterations was changed from the default (1500), the cell will also show an "m". If the convergence tolerance was changed from the default (0.00001), the cell will also contain a "t".
# Forecasts Number of forecasted values.
Forecast mode Indicates whether forecasts are within sample or out of sample.
Date/Time RunGives the date and time when the spec file was run.

"Model Info" Data Table
Column Heading Column Description
Series Name Name of series.
Model Span Span of data used to estimate regARIMA model coefficients.
ARIMA Model ARIMA model; "**" indicates the model was selected automatically by the program.
Regressors The regressors included in the model.
Trading Day Trading day regressors included, with t-values if only one regressor and p-values of the chi-squared test of groups of regressors if multiple regressors; "**" indicates trading day was included based on results of AIC test.
Holiday Easter, Thanksgiving, or Labor Day regressors (with their t-values) included; "**" indicates Easter was included based on results of AIC test.
Seasonal Seasonal or trigonometric seasonal regressors included, with the p-value of the chi-squared test.
Constant Gives the t-value of the constant, if it is included.
User Gives t-values of user defined regressors included, and p-value of the chi-squared test of the group of regressors, if there is more than one; "**" indicates user regressors are included based on results of AIC test.
Coded Outliers The outliers hard-coded in the spec file, with their t-values.
Auto Outliers The outliers automatically found, with their t-values.
Variance Innovation variance of the ARIMA model.
Phi1 Estimate of nonseasonal AR parameter at lag 1.
Sum NS AR Sum of all nonseasonal AR parameter estimates.
Theta1 Estimate of nonseasonal MA parameter at lag 1.
Sum NS MA Sum of all nonseasonal MA parameter estimates.
Sum Seas AR Sum of all seasonal AR parameter estimates.
Sum Seas MA Sum of all seasonal MA parameter estimates.

"Model Diagnostics" Data Table
Column Heading Column Description
Series Name Name of series.
AICC F-adjusted Akaike's Information Criterion (corrected for sample size).
aa FcE (3-yr) Average absolute percentage error of forecasts in the last three years. An average of the 1-step ahead to 12-step ahead (4-step ahead for quarterly series) forecasts of the data with one, two and three years removed. By default, this is calculated using within-sample forecasts, but it can be done with out-of-sample forecasts if requested.
Normal? Indicates whether residuals pass normality tests.
# LBQ Fail Number of the lags from 1 to 24 (8 for quarterly) with significant Ljung-Box Q statistic.
Sig LBQ List of lags with significant LBQ.
Sig Seas LBQ Seasonal lags with significant LBQ.
# BPQ Fail Number of the lags from 1 to 24 (8 for quarterly) with significant Box-Pierce Q statistic.
Sig BPQ List of lags with significant BPQ.
Sig Seas BPQ Seasonal lags with significant BPQ.
Sig ACF Lags with significant autocorrelation in the residuals.
Sig Seas ACF Seasonal lags with significant autocorrelation in the residuals.
Sig PACF Lags with significant partial autocorrelation in the residuals.
Sig Seas PACF Seasonal lags with significant partial autocorrelation in the residuals.
Resid Peaks Indicates the visually significant seasonal and trading day peaks in the spectrum of the model residuals.
QS Residuals p-value for the QS statistic of the residuals.
QSS Residuals p-value for the QS statistic of the residuals on the last 96 observations (8 years for a monthly series).
Avg Sq Fcst Err 1 PeriodAverage One-Step-Ahead Squared Forecast Error (from History analysis)
Avg Sq Fcst Err 1 YearAverage One-Year-Ahead Squared Forecast Error (from History analysis)

"x11" Data Table
Column Heading Column Description
Series Name Name of series.
Sigma Lim Lower and upper sigma limits for downweighting extreme values.
Seasonal MA Seasonal moving average filter; "**" indicates the filter was chosen by X-13ARIMA-SEATS.
Trend MA Length of the final Henderson trend filter; "**" indicates the filter was chosen by X-13ARIMA-SEATS.
I/S Ratio The final irregular/seasonal Ratio from Table D10; also called the global moving seasonality ratio.
I/C Ratio The final irregular/trend ratio from Table D12.
D8F F-statistic of test for seasonality assuming stability from D8 table.
D8F p-val p-value of D8 F statistic.
D11F p-value of D11 F statistic for residual seasonality.
D11F 3 yr p-value of D11 F statistic for residual seasonality in the last three years.
M1 The relative contribution of the irregular over three months span.
M2 The relative contribution of the irregular component to the stationary portion of the variance.
M3 The amount of period-to-period change in the irregular component as compared to the amount of period-to- period change in the trend-cycle.
M4 The amount of autocorrelation in the irregular as described by the average duration of run.
M5 The number of months it takes the change in the trend-cycle to surpass the amount of change in the irregular.
M6 The amount of year-to-year change in the irregular as compared to the amount of year-to-year change in the seasonal.
M7 The amount of moving seasonality present relative to the amount of stable seasonality.
M8 The size of the fluctuations in the seasonal component throughout the whole series.
M9 The average linear movement in the seasonal component.
M10 As M8, calculated for recent years only.
M11 As M9, calculated for recent years only.
Q A weighted average of M1-M11.
Q2 A weighted average of M1-M11 without M2.
MCD Months for Cyclical Dominance
"Spectrum & QS" Data Table
Column Heading Column Description
Series Name Name of series.
Sig Ori Peaks Indicates the visually significant seasonal and trading day peaks in the spectrum of the (possibly differenced, transformed, prior-adjusted) original series.
QS Ori p-value for the QS statistic of the original series.
QSS Ori p-value for the QS statistic of the original series calculated using the spectrum span.
QS Ori Adj Ext p-value for the QS statistic of the original series adjusted for extreme values.
QSS Ori Adj Ext p-value for the QS statistic of the original series adjusted for extreme values calculated using the spectrum span.
Tukey Ori PeaksLists the highly significant (p>.99) and significant (p>.90) seasonal frequencies of the Tukey spectrum of the original series.
Sig SAdj Peaks Indicates the visually significant seasonal and trading day peaks in the spectrum of the seasonally adjusted series.
Sig Irr Peaks Indicates the visually significant seasonal and trading day peaks in the spectrum of the modified irregular.
Nonsig Seasonal Peaks Indicates whether there is a nonsignificant peak at any of S1, S2, S3, or S4 in the spectrum of the seasonally adjusted series ("sadj"), irregular ("irr"), or residuals ("rsd"). Also gives the height in "stars" of the tallest of these peaks.
Nonsig TD Peaks Indicates whether there is a nonsignificant peak at T1 in the spectrum of the seasonally adjusted series ("sadj"), irregular ("irr"), or residuals ("rsd"). Also gives the height in "stars" of the tallest of these peaks.
QS Sadj p-value for the QS statistic of the seasonally adjusted series.
QSS Sadj p-value for the QS statistic of the seasonally adjusted series calculated using the spectrum span.
QS Sadj Adj Ext p-value for the QS statistic of the seasonally adjusted series adjusted for extreme values.
QSS Sadj Adj Ext p-value for the QS statistic of the seasonally adjusted series adjusted for extreme values calculated using the spectrum span.
QS Irr p-value for the QS statistic of the irregular component.
QSS Irr p-value for the QS statistic of the irregular component calculated using the spectrum span.
QS Irr Adj Ext p-value for the QS statistic of the irregular component adjusted for extreme values.
QSS Irr Adj Ext QS statistic of the irregular component adjusted for extreme values calculated using the spectrum span.
Tukey Sadj PeaksLists the highly significant (p>.99) and significant (p>.90) seasonal frequencies of the Tukey spectrum of the seasonally adjusted series.
Tukey Irr PeaksLists the highly significant (p>.99) and significant (p>.90) seasonal frequencies of the Tukey spectrum of the irregular component.
Tukey Rsd PeaksLists the highly significant (p>.99) and significant (p>.90) seasonal frequencies of the Tukey spectrum of the residuals.

"Stability Diagnostics" Data Table
Column Heading Column Description
Series Name Name of series.
Rev Span Span of data of revision history analysis.
SA.AAR Average absolute percent revisions of the seasonal adjustments.
MM.AAR Average absolute revision of the month-to-month percent change of the adjustments.
#Spans Number of spans for sliding spans analysis.
Span Length Length of each span.
SF Cut Threshold value for the seasonal factors.
SF75p 75th percentile of maximum percent differences across spans of seasonal factors.
SF% Percent of months (quarters) with a maximum absolute percent change of the seasonal factors greater than the threshold.
SA Cut Threshold value for the seasonal adjustment values.
SA75p 75th percentile of maximum percent differences across spans of the seasonally adjusted series.
SA% Percent of months (quarters) with a maximum absolute percent change of the seasonal adjustment values greater than the threshold.
MM Cut Threshold value for the period-to-period percent change in the seasonally adjusted series.
MM60p 60th percentile of maximum percent differences across spans of period-to-period changes in the seasonally adjusted series.
MM% Percent of months (quarters) with a maximum absolute difference of period-to-period change in the seasonally adjusted series greater than the threshold.
TD Cut Threshold value for trading day factors.
TD75p 75th percentile of maximum percent differences across spans of trading day factors.
TD% Percent of months (quarters) with a maximum absolute percent change of the trading day factors greater than the threshold.
YY Cut Threshold value for the year-to-year change in the seasonally adjusted series.
YY90p 90th percentile of maximum percent differences across spans of year-to-year changes in the seasonally adjusted series.
YY% Percent of months (quarters) with a maximum absolute difference of year-to-year change in the seasonally adjusted series greater than the threshold.