lmo questions

lmo answers

• How to use lapply to create new variables in a dataframe and rename them
• Nested rolling sum in vector
• R transform data with multiple values
• How to find the index based on the gathered population
• In R, apply multiply two data frames element-wise and by a vector
• Cross correlation of different time series in a matrix
• Using Ifelse in a dataframe
• Calculating weightedMedian (matrixStats) coloumnwise by category
• Several bar plots in same graph in R
• Cross merge two vectors [duplicate]