Reshape wide data to long when variables have different naming pattern in R...

How does one compute the "normalized" model residuals based via lme4/merMod in R?...

how to filter repeat data based on repeated id and time interval...

how to filter repeat data based on repeated id and date...

How to filter repeated data based on the number of days between dates in R...

how to create aggregate data from repeated data based on a date in R...

How to combine dated data rows in SAS?...

creating a dummy variable based on dates for longitudinal data in R...

Longitudinal exclusion of participants in R...

running multiple lines of R code that differ by a single variable each time to improve readability...

lme4 1.1-27.1 error: pwrssUpdate did not converge in (maxit) iterations...

Replicating a color-coded spaghetti plot...

Create a dummy variable indicating if an event occured the past 2 years...

How to splice an existing date-bounded row of data into two new rows based on the date of a new vari...

SPSS: How do I generate ID numbers from client ID variable that contains duplicate IDs in the order ...

R: How can I retain the 2-3 last rows within the same IDs when the values in a column are the same i...

R: How to delete ID from a list of multiple strings in a longitudinal format...

Convert data on pre-post repeated measures from long to wide by filtering data to get time point as ...

Subset cases in which there were more than 3 observations in longitudinal data?...

ggplot longitudinal data with a line connecting participant change over time...

Deleting/ rows if rows do not have atleast 2 recordings for multiple variable...

PSM in R with specific lines...

Longitudinal modeling with GAM in R...

emmip - is there a way to plot a 'merged' treatment x time factor?...

Presentation of a longitudinal dataframe, counting by year...

New variables using id's linking different cases in longidutinal data...

How can i sum values of 1 column based on the categories of another column, multiple times, in R?...

Creating new variables with links between cases via id's (longitudinal data)...

Comparing two visits in R...

R Filling all observations after first occurrence with that observation in longitudinal data...