r Archives - Page 13 of 18

I am trying to make a bar graph where the largest bar would be nearest to the y axis and the shortest bar ...

I have a dataframe with a column of p-values and I want to make a selection on these p-values. > pvalues_anova...

I have a large data set and I would like to read specific columns or drop all the others. data <- read.dta("file.dta") I ...

I’m trying to determine if a string is a subset of another string. For example: chars <- "test" value <- "es" I want ...

How would one change this input (with the sequence: time, in, out, files): Time In Out Files 1 2 3 4 2 3 ...

In R, I have an element x and a vector v. I want to find the first index of an element in v ...

I have a data frame. Let’s call him bob: > head(bob) phenotype exclusion GSM399350 3- 4- 8- 25- 44+ 11b- 11c- 19- NK1.1- ...

I am having some trouble with leading and trailing white space in a data.frame. For example, I look at a specific row in ...

How to find the length of a string (i.e., number of characters in a string) without splitting it in R? I know how ...

I’m trying to build a survival model in JAGS that allows for time-varying covariates. I’d like it to be a parametric model — ...