Vlad questions

• R cumsum with multiplication based on value
• R: cumulative sum based on another column and max sum value
• R Shiny: upload image file and save to server
• codefolding on google colab
• Pandas read_excel: only read first few lines
• R shinydashboardplus flipbox - how to remove images
• Change data types using a list of data type names
• pandas read_csv fix columns to read data with newline characters in data
• R Shiny map search input box
• R: cumulative sum over rolling date range

Vlad answers