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sameer112217
Quartz | Level 8

Hello!

 

Can anyone help me to identify how can I predict the most influential variable impacting the model in linear regression.

 

Which statistic or method I need to refer for this

1 ACCEPTED SOLUTION

Accepted Solutions
Ksharp
Super User

Check ANOVA table, the variable which has the smallest P-value should be the most significant variable.

Or check the largest T-value .

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5 REPLIES 5
PGStats
Opal | Level 21

Look at measures of variable importance in proc adaptivereg and proc pls.

PG
Ksharp
Super User

Check ANOVA table, the variable which has the smallest P-value should be the most significant variable.

Or check the largest T-value .

sameer112217
Quartz | Level 8

Hello Ksharp

 

Thanks for the reply. You mean smallest value or largest t value would have greatest impact or significance to the dependant variable. What about coeff var?

 

Sameer

Ksharp
Super User
No. The coefficient of variable only measure how much Y will change when X change one unit.

Y(x+1)-Y(x)=beta(x+1)-beta*x=beta

It doesn't measure the importance of variable to the model.
sameer112217
Quartz | Level 8

Thanks for the help

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What is ANOVA?

ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.

Find more tutorials on the SAS Users YouTube channel.

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