Hello, I would like to compare 2 groups with 2 sub goups with LM function.
Can you help me please.
reg1 <-lm((complete_DATA$deltapercBMIDS.PM[complete_DATA$AgeH<10])~(complete_DATA$deltapercTDS.PM[complete_DATA$AgeH>10]))
Error in model.frame.default(formula = (complete_DATA$deltapercBMIDS.PM[complete_DATA$AgeH < :
les longueurs des variables diffèrent (trouvé pour 'complete_DATA$deltapercTDS.PM[complete_DATA$AgeH > 10]')
> complete_DATA$deltapercBMIDS.PM[complete_DATA$AgeH<10]
[1] -53.13 -48.60 -84.60 -57.77 12.30 -14.65 1.77 -57.77
> complete_DATA$deltapercTDS.PM[complete_DATA$AgeH>10]
[1] 15.40 3.63 -11.13 -45.80 -40.30 -48.27 -4.10 -50.33 -5.77 -30.65 -4.10 10.97 -5.33
[14] -4.30 5.77 -5.83 -48.27 -35.07 -13.23 -13.87 -51.00 -19.97 -59.13 -31.87 -8.53 15.40
[27] -14.33 -30.93 -2.03 -6.00 -15.50 -35.30 -21.77 10.97 15.40 1.20 -48.27 -35.65 19.83
[40] -10.93 2.90 12.53 2.95 -41.53 -0.97 -23.23 -1.57 7.50 -22.10 19.83 -21.25 -13.87
[53] -1.70 -32.67 -40.00 -50.33 -50.33 19.03 -50.33 -19.83 -12.63 -51.00 19.83 -48.27 10.97
[66] -50.33 -21.30 -41.53 -40.00 3.17 -58.95 -15.40