Watch out:the order with which you assign the levels is important. If you typelevels(factor_survey_vector), you'll see that it outputs[1] "F" "M". If you don't specify(指出) the levels of the factor when creating the vector,Rwill automatically assign them alphabetically(字母序). To ...
factor_survey_vector <- factor(survey_vector) # Specify the levels of factor_survey_vector levels(factor_survey_vector) <- c("Female", "Male") factor_survey_vector 3. Summarizing a factor After finishing this course, one of your favorite functions in R will besummary(). This will give y...
Optionally can specify individual fields to validate, or even specific messages for each attribute.How To Use:expect(instance).to have_errors expect(instance).to have_errors.on(:name) expect(instance).to have_errors.on(:name).with_message('not to be nil') ...
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#Step2:specify the vectors as factors # diabetes=factor(diabetes) status=factor(status, order = TRUE) #Step3:create the dataframe# patientdata=data.frame(patientID, age, diabetes, status) #Step4: view the structure of the dataframe #
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patientID <- c(1, 2, 3, 4) age <- c(25, 34, 28, 52) diabetes <- c("Type1", "Type2", "Type1", "Type1") status <- c("Poor", "Improved", "Excellent", "Poor") diabetes <- factor(diabetes) status <- factor(status, order=TRUE) patientdata <- data.frame(patientID, ...
# You can specify your preferred order ofthe levels:repli_strand_granges$strand_info=factor(repli_strand_granges$strand_info,levels=c("left","right"))mut_mat_s_rep=mut_matrix_stranded(vcfs,ref_genome,repli_strand_granges,mode="replication") ...
By default,{thematic}attempts to detect the relevant background, foreground, and accent colors. However, you may also specify these settings more directly by providing relevant color and fonts directly tothematic_on()(orthematic_shiny()/thematic_rmd()). ...
Used to specify conditioning variables(in lattice formulas; see "Customizing Lattice Graphics" on page 312). Identity function (I()) Used to indicate that the enclosed expression should be interpreted by its arithmetic meaning. For example: ...