Hi all: My data is in the attachment. I want to analysis the mean difference of y between 2 sex. My code: result_lm<-lm(y~factor(sex) + x1 + x2) summary(result_lm)
The result of "factor(sex)m" 136.83, is the mean difference of y between 2 sex,and the corresponding p value is 0.07618. My question is: how to get the mean y of sex(m) and sex(f) respectively via lm function? Many thanks for your help. My best.
sex x1 x2 y m 54 3 2446.2 m 50.5 2.25 1928.4 m 51 2.5 2094.5 m 56.5 3.5 2506.7 m 52 3 2121 m 76 9.5 3845.9 m 80 9 4380.8 m 74 9.5 4314.2 m 80 9 4078.4 m 76 8 4134.5 m 96 13.5 5830.2 m 97 14 6013.6 m 99 16 6410.6 m 92 11 5283.3 m 94 15 6101.6 f 54 3 2117.3 f 53 2.25 2200.2 f 51.5 2.5 1906.2 f 51 3 1850.3 f 51 3 1632.5 f 77 7.5 3934 f 77 10 4180.4 f 77 9.5 4246.1 f 74 9 3358.8 f 73 7.5 3809.7 f 91 12 5358.4 f 91 13 5601.7 f 94 15 6074.9 f 92 12 5299.4 f 91 12.5 5291.5
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