165 when you add a new data set to a geom you need to use the data= argument. Or put the arguments in the proper order mapping=…, data=…. Take a look at the arguments for ?geom_line. Thus: Or:
The error happens because of you are trying to map a numeric vector to data in geom_errorbar: GVW[1:64,3]. ggplot only works with data.frame. In general, you shouldn’t subset inside ggplot calls. You are doing so because your standard errors are stored in four separate objects. Add them to your original data.frame and you will be … Read more
You can use the combinat package with R 2.13: If you want to know the number of combination/permutations, then check the size of the result, e.g.:
The truth is that objects in R don’t have names per-se. There exists different kinds of environments, including a global one for every process. These environments have lists of names, that point to various objects. Two different names can point to the same object. This is best explained to my knowledge in the environments chapter … Read more
The answer to the question was already posted by the @latemail in the comments above. You can use regular expressions for the second and subsequent arguments of filter like this: Since you have not provided the original data, I will add a toy example using the mtcars data set. Imagine you are only interested in cars produced by Mazda … Read more
Problem is with your basics of R knowledge You cannot name your parameter starting with number. And if you want to start it try this
The $ allows you extract elements by name from a named list. For example You can find the names of a list using names() This is a basic extraction operator. You can view the corresponding help page by typing ?Extract in R.
I’m guessing your data.frame has row.names: What’s happening here is that since you can’t by default have duplicated row.names in a data.frame and since you don’t tell R at any point to duplicate the row.names when recycling the first column to the same number of rows of the stacked column, R just discards the row.names. … Read more
You might want to try plotmatrix: to me mpg (first column in mtcars) should not be a factor. I haven’t checked it, but there’s no reason why it should be one. However I get a scatter plot 🙂 Note: For future reference, the plotmatrix() function has been replaced by the ggpairs() function from the GGally … Read more