metools (version 1.0.0)

cuminyear_var: Accumulated variation in year

Description

cuminyear_var calculates an accumulated variation in year of a rate, _var means the data must be a percentage variation. Data must be start in january, if you data don't start in january and you need use this values, consider complete the previous months with 0.

Usage

cuminyear_var(data, coldate, colnum, div100 = FALSE)

Arguments

data

a dataframe

coldate

number of date column

colnum

number of values column

div100

divide data by 100, use if data is not fraction

Value

Return a dataframe.

Examples

# NOT RUN {
v=data.frame(
"Date"=c(seq.Date(as.Date("2018-01-01"),as.Date("2019-12-01"),by='month'))
,"Value"=c(rep(0.02,12),rep(0.03,12)))
cuminyear_var(v,coldate=1,colnum=2)

v=data.frame(
"Date"=c('january','february','march')
,"Value"=c('1%','3%','2%'))
v=colpct2num(v,start=2,div100=TRUE)
v[[1]]=month2num(v[[1]])
v[[1]]=paste('2018',v[[1]],'01',sep="-")
v[[1]]=as.Date(v[[1]])
cuminyear_var(v,coldate=1,colnum=2)

# }