READY SIGNAL CONTROL DATA

CPI (Urban): All Items

Why Use This Data Source In Your Models?

The consumer price index is an index of the variation in prices paid by typical consumers for all items. This describes the overall economic situation, and supply and demand of all goods in the US.

CPI (Urban): All Items

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Automated Data Profiling

Ready Signal automatically profiles each data set and offers up suggested industry standard data science treatments to utilize with these data in your models.

Suggested Treatment:

The data shows auto correlation and a non-normal distribution. The data should be differenced. While the Order Norm transformation, provides the best normality, the Yeo Johnson variable will also perform well.

Grain Transformation:

Data is unable to be distributed by time or geography. The roll up method used is Weighted Average.

Source:
U.S. Bureau of Labor Statistics

Release:
Consumer Price Index

Units:
Index 1982-1984=100, Seasonally Adjusted

Frequency:
Monthly

Available Through:
02/28/2023

Suggested Treatment:

The data shows auto correlation and a non-normal distribution. The data should be differenced. While the Order Norm transformation, provides the best normality, the Yeo Johnson variable will also perform well.

Grain Transformation:

Data is unable to be distributed by time or geography. The roll up method used is Weighted Average.

Auto Correlation Analysis:

Data shows auto correlation indicating a need for differencing

The ACF indicates 2 order differencing is appropriate.

Further differencing is reccommended

Trend Analysis:

The Kwiatkowski-Phillips-Schmidt-Shin (KPSS) test, KPSS Trend = 0.46 p-value = 0.01 indicates that the data is not stationary.

Distribution Analysis:

The Shapiro-Wilk test returned W = 0.89 with a p-value =0.00 indicating the data does not follow a normal distribution.

A skewness score of 1.11 indicates the data are substantially skewed.

Hartigan's dip test score of 0.03 with a p-value of 0.69 inidcates the data is unimodal

Statistics (Pearson P/ df, lower => more normal)

No transform
5.63
Box-cox
5.03
Log_b(x-a)
5.74
sqrt(x+a)
5.55
exp(x)
139.63
arcsinh(x)
5.74
Yeo-Johnson
3.32
OrderNorm
0.03

Auto Correlation Function

Auto Correlation Function After Differencing

Partial Auto Correlation Function

Seasonal Impact

Seasonal and Trend Decompostion

Citation:

U.S. Bureau of Labor Statistics, Consumer Price Index for All Urban Consumers: All Items in U.S. City Average [CPIAUCSL], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CPIAUCSL, December 13, 2019.

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