Re: [R] Spaces in a name
Try this with built in BOD: > names(BOD) <- paste(names(BOD), "X") > BOD Time X demand X 1 1 8.3 2 2 10.3 3 3 19.0 4 4 16.0 5 5 15.6 6 7 19.8 > lm(`demand X` ~ `Time X`, BOD) Call: lm(formula = `demand X` ~ `Time X`, data = BOD) Coefficients: (Intercept) `Time X` 8.5211.721 > On Wed, Jul 15, 2009 at 10:40 AM, Idgarad wrote: > I am reading regressors from an excel file (I have no control over the file) > and some of the element names have spaces: > > i.e. "Small Bank Aquired" > > but I have found that lm(SourceData ~ . - "Small Bank Aquired", mcReg) > doesn't work (mcReg = modelCurrentRegressors) > > As they are toggles I have ran them through factor() to be treated propertly > as 0 or 1 but due to the fact I am grabbing automagically the first 2/3rds > of the data some of the regressors are either all 0s or all 1s accordingly > so I need to take them out of the model by hand for now until I find a nice > automatic method for removing regressors that only have 1 factor. > > So Primarily: how do I handle names that include spaces in this context and > as a bonus: Anyone have a nice method for yanking regressors that only have > a single factor in them from the lm() function? > > > e.g. (for the following 30 elements) > 0,0,0,0,0,0,0,0,0,0, > 0,0,0,0,0,0,0,0,0,0, > 1,1,1,1,1,1,1,1,1,1 > > As you can see grabbing the first 2/3rds is all 0s and the last 1/3rd is all > ones (doing in-sample forecast diagnostic building the model only on the > first 2/3rds of data, then forecasting the next 1/3rd and comparing.) > > Sorry if I am rambling a bit, still on cup of coffee #1... > > [[alternative HTML version deleted]] > > __ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Spaces in a name
Not sure how to get formula to handle spaces, but to get going you can just change the names in the data frame after you have read it, e.g. names(mcReg) <- make.names(names(mcReg)) will (usually) give you Small.Bank.Acquired. Allan On 15/07/09 15:40, Idgarad wrote: > I am reading regressors from an excel file (I have no control over the file) > and some of the element names have spaces: > > i.e. "Small Bank Aquired" > > but I have found that lm(SourceData ~ . - "Small Bank Aquired", mcReg) > doesn't work (mcReg = modelCurrentRegressors) > > As they are toggles I have ran them through factor() to be treated propertly > as 0 or 1 but due to the fact I am grabbing automagically the first 2/3rds > of the data some of the regressors are either all 0s or all 1s accordingly > so I need to take them out of the model by hand for now until I find a nice > automatic method for removing regressors that only have 1 factor. > > So Primarily: how do I handle names that include spaces in this context and > as a bonus: Anyone have a nice method for yanking regressors that only have > a single factor in them from the lm() function? > > > e.g. (for the following 30 elements) > 0,0,0,0,0,0,0,0,0,0, > 0,0,0,0,0,0,0,0,0,0, > 1,1,1,1,1,1,1,1,1,1 > > As you can see grabbing the first 2/3rds is all 0s and the last 1/3rd is all > ones (doing in-sample forecast diagnostic building the model only on the > first 2/3rds of data, then forecasting the next 1/3rd and comparing.) > > Sorry if I am rambling a bit, still on cup of coffee #1... > > [[alternative HTML version deleted]] > > __ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Spaces in a name
I am reading regressors from an excel file (I have no control over the file) and some of the element names have spaces: i.e. "Small Bank Aquired" but I have found that lm(SourceData ~ . - "Small Bank Aquired", mcReg) doesn't work (mcReg = modelCurrentRegressors) As they are toggles I have ran them through factor() to be treated propertly as 0 or 1 but due to the fact I am grabbing automagically the first 2/3rds of the data some of the regressors are either all 0s or all 1s accordingly so I need to take them out of the model by hand for now until I find a nice automatic method for removing regressors that only have 1 factor. So Primarily: how do I handle names that include spaces in this context and as a bonus: Anyone have a nice method for yanking regressors that only have a single factor in them from the lm() function? e.g. (for the following 30 elements) 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 1,1,1,1,1,1,1,1,1,1 As you can see grabbing the first 2/3rds is all 0s and the last 1/3rd is all ones (doing in-sample forecast diagnostic building the model only on the first 2/3rds of data, then forecasting the next 1/3rd and comparing.) Sorry if I am rambling a bit, still on cup of coffee #1... [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
