From: Ed Holdgate <edholdgate_at_yahoo.com>

Date: Tue 30 Jan 2007 - 01:49:28 GMT

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Tue Jan 30 21:56:58 2007

Date: Tue 30 Jan 2007 - 01:49:28 GMT

Hello:

I have a vector with 120,000 reals

between 0.00000 and 0.9999

For example:

my_data <- c(0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.028, 0.024, 0.027, 0.023, 0.022, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.024, 0.029, 0.023, 0.025, 0.026, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.900, 0.022, 0.023, 0.025, 0.333, 0.027, 0.028, 0.900, 0.900, 0.900, 0.900, 0.900)

I seek the R program to report:

start_index of 12 and an end_index of 16
-- and also --

start_index of 23 and an end_index of 27
because that is were there happens to be
search_length numbers within my search_range.

It should _not_ report the series at start_index 40 because that 0.333 in there violates the search_range.

I could brute-force hard-code an R program, but perhaps an expert can give me a tip for an easy, elegant existing function or a tactic to approach?

Execution speed or algorithm performance is not, for me in this case, important. Rather, I seek an easy R solution to find the time windows (starting & ending indicies) where 5 or more small numbers in my search_range were measured all in a row.

Advice welcome and many thanks in advance.

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Tue Jan 30 21:56:58 2007

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