Odd.. came right up for me. Perhaps you might find rseek.org easier to use?
On March 7, 2021 5:03:20 AM PST, Neotropical bat risk assessments and acoustic tools <neotropical.b...@gmail.com> wrote: >Hi all > >I have not found a package by Googling, but assume there must be at >least one out there. >I need to generate/write sun rise-sun set times (civil twilight) and >moon phase/illumination. > >I would like to add a start date and end date along with location >coordinates and have a table generated like below. >This is from a legacy program acquired some 30 years ago and is no >longer available. This can only generate 1 month at a time (subset >below). But for a year at a time both historical and for future dates >and locations. > >For this legacy program I enter the date and select a location I have >in >a simple TXT location file location with time-zone and X-Y coordinates >and it will generate a month at a time. this can be dumped to the >clipboard but not written as a TXT or delimited file. > >I am hoping there will be an elegant way to do this in R and have the >results written to a file for import into an Access DB. >Tnx for any suggestions on package(s). > >Sample below. > > Sun and Moon Data for March 2021 > 17.05°N 88.57°W 5hrW > Standard Time Civil Twilight > > Sun Moon > Date Twi. Rise Transit Set Twi. Rise Transit Set % > > 3/1/2021 06:50 07:12 13:07 19:01 19:23 21:36 02:52 09:04 92 > 3/2/2021 06:50 07:11 13:06 19:01 19:23 22:35 03:43 09:47 85 > 3/3/2021 06:49 07:11 13:06 19:02 19:23 23:35 04:35 10:31 76 > 3/4/2021 06:48 07:10 13:06 19:02 19:24 ***** 05:28 11:18 65 -- Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
