jjulip questions

• Add a unique id for each matching pair of values between two columns in R
• How to create a time series plot in the style of a horizontal stacked bar plot in r
• How to add a random intercept and random slope term to a GAMM model in R
• How to colour the labels of a dendrogram by an additional factor variable in R
• How to assign a unique ID number to each group of identical values in a column [duplicate]

jjulip answers