I write three line porgram as following:
rt = r.read_table("exam0203.txt", header=1)
lm_sol = r.lm("Weight ~ Height", data = rt)
r.summary(lm_sol)
the first line is to read a file
the second line is to make a linear regression
the third line is to display the content of variate lm_sol
but there is nothing to display. why?????
thank you very much
the R command is the following
rt <- read.table("exam0203.txt", head=TRUE)
lm.sol <- lm(Weight~Height, data = rt)
summary(lm.sol)
the file content is:
Name Sex Age Height Weight
Alice F 13 56.5 84.0
Becka F 13 65.3 98.0
Gail F 14 64.3 90.0
Karen F 12 56.3 77.0
Kathy F 12 59.8 84.5
Mary F 15 66.5 112.0
Sandy F 11 51.3 50.5
Sharon F 15 62.5 112.5
Tammy F 14 62.8 102.5
Alfred M 14 69.0 112.5
Duke M 14 63.5 102.5
Guido M 15 67.0 133.0
James M 12 57.3 83.0
Jeffrey M 13 62.5 84.0
John M 12 59.0 99.5
Philip M 16 72.0 150.0
Robert M 12 64.8 128.0
Thomas M 11 57.5 85.0
William M 15 66.5 112.0
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