R ts with missing values

Question

I have a data frame I read from a csv file that has daily observations:

Date        Value 
2010-01-04  23.4
2010-01-05  12.7
2010-01-04  20.1
2010-01-07  18         


        

Answer 1

You can use the imputeTS, zoo or forecast package, which all offer methods to fill the missing data. (the process of filling missing gaps is also called imputation)

imputeTS

na.interpolation(yourData)
na.seadec(yourdata)
na.kalman(yourdata)
na.ma(yourdata)

zoo

na.approx(yourdata)
na.locf(yourdata)
na.StructTS(yourdata)

forecast

na.interp(yourdata)

These are some functions from the packages you could use.