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Table 3 Ten variables selected by LASSO and random forest, respectively

From: Principal variable selection to explain grain yield variation in winter wheat from features extracted from UAV imagery

Rank

Feature

Originated map

Date

Abbreviation

LASSO selected variables

 1

Median

Plant height

6th

PH.Date6.Var1

 2

Contrast

NDRE

3rd

NDRE.Date3.Var1

 3

Standard deviation

NDRE

2nd

NDRE.Date2.Var1

 4

95th percentile

Plant height

5th

PH.Date5.Var1

 5

95th percentile

Plant height

1st

PH.Date1.Var1

 6

Homogeneity

Plant height

7th

PH.Date7.Var1

 7

Standard deviation

NDVI

3rd

NDVI.Date3.Var1

 8

Standard deviation

Plant height

2nd

PH.Date2.Var1

 9

Correlation

GNDVI

6th

GNDVI.Date6.Var1

 10

Standard deviation

NDRE

3rd

NDRE.Date3.Var2

Random forest selected variables

 1

Median

Plant height

6th

PH.Date6.Var1

 2

Median

Plant height

7th

PH.Date7.Var1

 3

Second growth rate

GNDVI

3rd and 5th

GNDVI. Date3-Date5

 4

95th percentile

Plant height

2nd

PH.Date2.Var1

 5

Fifth growth rate

Plant height

5th and 6th

PH.Date5-Date6

 6

Correlation

Plant height

1st

PH.Date1.Var1

 7

95th percentile

Plant height

6th

PH.Date6.Var2

 8

Median

Plant height

4th

PH.Date4.Var1

 9

Standard deviation

NDRE

2nd

NDRE.Date2.Var1

 10

95th percentile

Plant height

7th

PH.Date7.Var2

  1. Common variables selected by both algorithms were given in italic