I have a high dimension linear model:
y~ x1 + x2 + ... + x_n. n is very large.
For linear model fit, I wish to use a sequence of covariates, say X1 to
X200, without typing every single covariate in the function (my variable
names are coded in the pattern of X1, X2, ...). I think all.var or
all.names might have worked but I can't figure out how to do it. Please
help.
Thanks,
Michael
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