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Conversion of formula into character string or vice versa
formula2character(f, type = "formula")
a formula.
should the normal formula operator be used ("formula") or the one of lava.option ("symbols" or "symbol").
"formula"
"symbols"
"symbol"
formula2character(Y1~X1+X2) formula2character(Y1~X1+X2, type = "symbols")
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