[R] Help with decimal points
Hi I have found a little problem with an R script. I am trying to merge some data and am finding something unusual going on. As shown below I am trying to assign (MatchedValues[Value2,Value]) to (ClusteredData[k,Value]) which are two separate dataframes. 1) By the following command you can see that the value im transferring is 481844.03 MatchedValues[Value2,Value] [1] 481844.03 6618 Levels: 1.00E+07 1.01E+07 1.02E+07 1.04E+07 1.05E+07 1.06E+07 ... Raw 2) But when I try to replace the values using the command i get a value of 4420 ClusteredData[k,Value] - MatchedValues[Value2,Value] ClusteredData[k,Value] [1] 4420 3) So what am I not doing. How can I keep that same value of 481844.03 I have tried as.double(MatchedValues[Value2,Value]) [1] 4420 as.numeric(MatchedValues[Value2,Value]) [1] 4420 __ 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] Help with decimal points
MatchedValues is a factor rather than numeric, and so is giving you results you don't expect. 4420 is the level of the factor, out of the 6618 total levels. Probably the best thing to do is figure out why your data are factors when you expect numbers. Sarah On Tue, Sep 7, 2010 at 4:38 PM, Amit Patel amitrh...@yahoo.co.uk wrote: Hi I have found a little problem with an R script. I am trying to merge some data and am finding something unusual going on. As shown below I am trying to assign (MatchedValues[Value2,Value]) to (ClusteredData[k,Value]) which are two separate dataframes. 1) By the following command you can see that the value im transferring is 481844.03 MatchedValues[Value2,Value] [1] 481844.03 6618 Levels: 1.00E+07 1.01E+07 1.02E+07 1.04E+07 1.05E+07 1.06E+07 ... Raw 2) But when I try to replace the values using the command i get a value of 4420 ClusteredData[k,Value] - MatchedValues[Value2,Value] ClusteredData[k,Value] [1] 4420 3) So what am I not doing. How can I keep that same value of 481844.03 I have tried as.double(MatchedValues[Value2,Value]) [1] 4420 as.numeric(MatchedValues[Value2,Value]) [1] 4420 -- Sarah Goslee http://www.functionaldiversity.org __ 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] Help with decimal points
Hi Amit, MatchedValues$Value is a factor. Converting factors to numeric is a FAQ: see http://cran.r-project.org/doc/FAQ/R-FAQ.html#How-do-I-convert-factors-to-numeric_003f Best, Ista On Tue, Sep 7, 2010 at 4:38 PM, Amit Patel amitrh...@yahoo.co.uk wrote: Hi I have found a little problem with an R script. I am trying to merge some data and am finding something unusual going on. As shown below I am trying to assign (MatchedValues[Value2,Value]) to (ClusteredData[k,Value]) which are two separate dataframes. 1) By the following command you can see that the value im transferring is 481844.03 MatchedValues[Value2,Value] [1] 481844.03 6618 Levels: 1.00E+07 1.01E+07 1.02E+07 1.04E+07 1.05E+07 1.06E+07 ... Raw 2) But when I try to replace the values using the command i get a value of 4420 ClusteredData[k,Value] - MatchedValues[Value2,Value] ClusteredData[k,Value] [1] 4420 3) So what am I not doing. How can I keep that same value of 481844.03 I have tried as.double(MatchedValues[Value2,Value]) [1] 4420 as.numeric(MatchedValues[Value2,Value]) [1] 4420 __ 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. -- Ista Zahn Graduate student University of Rochester Department of Clinical and Social Psychology http://yourpsyche.org __ 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] Help with decimal points
On Sep 7, 2010, at 4:38 PM, Amit Patel wrote: I have found a little problem with an R script. I am trying to merge some data and am finding something unusual going on. As shown below I am trying to assign (MatchedValues[Value2,Value]) to (ClusteredData[k,Value]) which are two separate dataframes. 1) By the following command you can see that the value im transferring is 481844.03 MatchedValues[Value2,Value] [1] 481844.03 6618 Levels: 1.00E+07 1.01E+07 1.02E+07 1.04E+07 1.05E+07 1.06E +07 ... Raw This shows you that MatchValues' column eval(Value) is a factor represented internally by one of 6618 integers with various level labels. The label of the item in row eval(Value2) is 481844.03. The label is a character object. 2) But when I try to replace the values using the command i get a value of 4420 ClusteredData[k,Value] - MatchedValues[Value2,Value] ClusteredData[k,Value] [1] 4420 3) So what am I not doing. How can I keep that same value of 481844.03 I have tried Read FAQ 7.10: http://cran.r-project.org/doc/FAQ/R-FAQ.html#How-do-I-convert-factors-to-numeric_003f -- David. as.double(MatchedValues[Value2,Value]) [1] 4420 as.numeric(MatchedValues[Value2,Value]) [1] 4420 -- David Winsemius, MD West Hartford, CT __ 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.
