Hi all, I have a data frame that looks like such: LATITUDE LONGITUDE TEMPERATURE TIME 36.73 -176.43 58.32 1 50.95 90.00 74.39 1 -30.42 5.45 23.26 1 15.81 -109.31 52.44 1 -80.75 -144.95 66.19 2 90.00 100.55 37.50 2 65.41 -4.49 29.83 2
and this goes on for a A LOT more records, until time=1200 I want to create a 5 degree by 5 degree grid of this data, with the value of temperature in the appropriate grid cell. I want one grid for each time value. For each time value, this works out to be a 36x72 grid with 2592 cells because the longitude spans -180 to 180 and latitude spans 90 to -90 and they would be in increments of 5 degrees. If there are no temperatures available to be put into a grid cell, than that cell should get a missing value, NA, put into it. Also, could the gridded result for each time be written to a text file before processing the next time value? Hope this is clear. Thanks in advance. dxc13 -- View this message in context: http://www.nabble.com/gridding-values-in-a-data-frame-tp23319190p23319190.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org 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.
