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3 questions
0
votes
1
answer
98
views
How to create and save subset dataframes for sequence of year-month
I would like to filter from a dataframe observations for a given year-month and then save it as a separate dataframe and name it with the respective year-month.
I would be grateful if someone could ...
- 531
0
votes
2
answers
71
views
Subsetting from one data frame based on multiple rows of another data frame
I am working with acceleromater data from an actigraphy watch and I am trying to subset the periods in which a person is sleeping according to an algorithm.
I have identified the periods in which a ...
- 11
2
votes
1
answer
174
views
Create a data frame from loop
How do I create a data frame for wkend rather than not print it?
wkend<-as.Date(c("2013-01-04","2013-01-05","2013-01-06"),"%Y-%m-%d")
while(wkend < "2013-12-27") {
wkend <- wkend + 7
...
- 326