Sharath questions

• Pivot rows into columns with values of counts for each measurement R
• Calculate column medians with NA's
• R: Roll up column values containing NA's by sum while grouping by ID's
• How do I subset datetimes and pivot the measurement column in R
• R: Pivot the rows into columns and use N/A's for missing values
• R: How to get the maximum value of a datetime column in a time series data
• Separate a column into 2 columns at the last underscore in R
• Extract part of string before the first semicolon
• Multiple boxplots placed side by side for different column values in ggplot

Sharath answers