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EURASIP Journal on Advances in Signal Processing

Table 4 Pearson correlation coefficient test for each independent variable

From: RETRACTED ARTICLE: Forecasting algorithm of tourism service trade based on PSO-optimized hybrid RVM model

Variable

UR

QTA

QL

ER

GDP

WGDP

UR

1

0.0528

0.5128

 − 0.2920

0.3915

0.2889

QTA

–

l.0000

0.2678

 − 0.2986

 − 0.0739

0.2952

QL

–

–

1.0000

0.0936

0.0414

 − 0.0913

ER

–

–

–

1.0000

 − 0.4556

 − 0.9723

GDP

–

–

–

–

1.0000

0.4484

WGDP

–

–

–

–

–

1.0000

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