How to remove the double or single quote from a string(unquote?)?
Hi, Jing Jiang, maybe as.formula( paste( "V12 ~ V", i, sep = "")) inside the call to glm() does what you need. Hth -- Gerrit
On Tue, 19 Apr 2011, JingJiang Yan wrote:
Is there a function to get a string without a pair of quotes around it? I have several expressions like: glm(V12 ~ V3, family=binomial, data=df1) glm(V12 ~ V4, family=binomial, data=df1) ... glm(V12 ~ V8, family=binomial, data=df1) As you can see, the only differences among them are V3 ... V8. Because sometimes several of these expressions are performed many times, I want to use a variable "i" to change the V3 ... V8. I did this with:
i <- 3:8
glm(V12 ~ paste("V", i, sep=""), family=binomial, data=df1)
However, it seems the paste always returns a variable name with a pair of quotes, which were wrong in such condition. I only find a function "sQuote" to add quotes to a string, and it looks I am looking for an opposite function of it. Any advice will be appreciated.
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