count_rowsback: Count the number of rows to go back in data frame
In bgulbis/BGTools: Brian's Functions for Data Tidying and Analysis
Description
Usage
Arguments
Details
Value
Description
count_rowsback determines how many rows should be included
Usage
1
count_rowsback(datetime, back = 2)
Arguments
datetime
A vector of POSIXct values
back
An optional numeric specifying the number of days back to go.
Defaults to 2 days.
Details
This function takes a vector of date/times (of type POSIXct) and counts the
number of rows which would fall within the specified time frame. Typically
called from mutate and the results are passed on to
rollapplyr.
Value
An integer with the number of rows; can be passed on to
rollapplyr
bgulbis/BGTools documentation built on May 12, 2019, 8:21 p.m.
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Description Usage Arguments Details Value
Description
count_rowsback determines how many rows should be included
Usage
1 | count_rowsback(datetime, back = 2)
|
Arguments
datetime |
A vector of POSIXct values |
back |
An optional numeric specifying the number of days back to go. Defaults to 2 days. |
Details
This function takes a vector of date/times (of type POSIXct) and counts the
number of rows which would fall within the specified time frame. Typically
called from mutate and the results are passed on to
rollapplyr.
Value
An integer with the number of rows; can be passed on to
rollapplyr
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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