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POscale_fill_manual based on another factor in ggplot2
 

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  1. POscale_fill_manual based on another factor in ggplot2
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    <p>I am trying to color-code my legend based on a broader categorization of the factor used to "fill" my geom_bar in ggplot2. My plot looks like this:<img src="https://i.stack.imgur.com/KjJHB.jpg" alt="enter image description here"> which I got using this R code:</p> <p><code>ggplot(df, aes(year, TOTALshark, fill=fishery)) + geom_bar(width=.5,stat="identity", position="dodge")+ facet_wrap(~div)</code> </p> <p>Here is a dput sample of my dataset:</p> <pre><code>&gt; dput(smpl) df &lt;- structure(list(X1 = structure(c(6L, 11L, 22L, 27L, 10L, 10L, 6L, 11L, 6L, 10L, 8L, 6L, 6L, 4L, 22L, 18L, 10L, 10L, 11L, 6L ), .Label = c("AMERICAN PLAICE", "BIGEYE TUNA", "BIVALVE", "BLUEFIN TUNA", "CAPELIN", "COD(ATL)", "CRAB(SNOW,QUEEN)", "HADDOCK", "HAGFISH(ATL)", "HALIBUT(ATL)", "HALIBUT(GREENLAND)", "HERRING(ATL)", "JONAH CRAB (CANC.BOR.)", "LOBSTER", "LONGHORN SCULPIN", "LUMPFISH", "MACKEREL(ATL)", "MONKFISH", "PAND.BOR.", "PAND.MON.", "POLLOCK", "REDFISH", "SCALLOP", "SEA URCHINS", "SEACU", "SILVER HAKE", "SWORDFISH", "WHELK", "WHITE HAKE", "WINTER FLOUNDER", "WITCH FLOUNDER", "YELLOWFIN TUNA", "YELLOWTAIL FLOUNDER"), class = "factor"), X2 = structure(c(2L, 2L, 8L, 5L, 5L, 5L, 5L, 8L, 5L, 5L, 5L, 2L, 5L, 5L, 8L, 2L, 5L, 5L, 2L, 2L), .Label = c("Dredge", "Gillnet", "Hook", "Jigger", "Line", "Seine", "Trap", "Trawlb", "Trawlm"), class = "factor"), fishery = structure(c(12L, 25L, 43L, 50L, 24L, 24L, 15L, 27L, 15L, 24L, 21L, 12L, 15L, 9L, 43L, 36L, 24L, 24L, 25L, 12L), .Label = c("AMERICAN PLAICE-Gillnet", "AMERICAN PLAICE-Line", "AMERICAN PLAICE-Trawlb", "BIGEYE TUNA-Jigger", "BIGEYE TUNA-Line", "BIVALVE-Dredge", "BLUEFIN TUNA-Hook", "BLUEFIN TUNA-Jigger", "BLUEFIN TUNA-Line", "CAPELIN-Seine", "CAPELIN-Trap", "COD(ATL)-Gillnet", "COD(ATL)-Hook", "COD(ATL)-Jigger", "COD(ATL)-Line", "COD(ATL)-Trap", "COD(ATL)-Trawlb", "CRAB(SNOW,QUEEN)-Trap", "CUSK-Line", "HADDOCK-Gillnet", "HADDOCK-Line", "HADDOCK-Trawlb", "HAGFISH(ATL)-Trap", "HALIBUT(ATL)-Line", "HALIBUT(GREENLAND)-Gillnet", "HALIBUT(GREENLAND)-Line", "HALIBUT(GREENLAND)-Trawlb", "HERRING(ATL)-Seine", "HERRING(ATL)-Trawlm", "JONAH CRAB (CANC.BOR.)-Trap", "LOBSTER-Trap", "LONGHORN SCULPIN-Trawlb", "LUMPFISH-Gillnet", "MACKEREL(ATL)-Seine", "MACKEREL(ATL)-Trawlm", "MONKFISH-Gillnet", "MONKFISH-Trawlb", "PAND.BOR.-Trawlb", "PAND.MON.-Trawlb", "POLLOCK-Gillnet", "POLLOCK-Trawlb", "REDFISH-Gillnet", "REDFISH-Trawlb", "REDFISH-Trawlm", "SCALLOP-Dredge", "SEA URCHINS-Dredge", "SEACU-Dredge", "SILVER HAKE-Trawlb", "SWORDFISH-Jigger", "SWORDFISH-Line", "SWORDFISH-unk", "WHELK-Trap", "WHITE HAKE-Gillnet", "WHITE HAKE-Line", "WINTER FLOUNDER-Gillnet", "WINTER FLOUNDER-Trawlb", "WITCH FLOUNDER-Trawlb", "YELLOWFIN TUNA-Line", "YELLOWTAIL FLOUNDER-Trawlb"), class = "factor"), year = c(2008L, 2008L, 2009L, 2009L, 2008L, 2009L, 2009L, 2008L, 2006L, 2007L, 2007L, 2007L, 2007L, 2007L, 2008L, 2008L, 2009L, 2009L, 2009L, 2009L), div = structure(c(6L, 19L, 2L, 4L, 5L, 10L, 3L, 19L, 9L, 10L, 3L, 9L, 6L, 4L, 3L, 9L, 6L, 11L, 7L, 9L), .Label = c("5Z", "5Y", "4X", "4W", "4V", "4T", "4S", "4R", "3P", "3O", "3N", "3M", "3L", "3K", "2J", "2H", "2G", "1F", "0B", "1B", "0A" ), class = "factor"), TOTALshark = c(3369.72, 12243.2, 6080.06, 316646.05, 18786.8, 6565.91, 1339771.2, 45841.03, 41329.64, 6411.86, 204980.36, 67608.78, 2617.05, 61547.64, 447349.44, 13226.4, 1362.55, 6012.23, 13152.51, 1067.92), cat = structure(c(1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L), .Label = c("groundfish", "largepelagic", "bivalve", "smallpelagic", "crabs/lobsters", "shrimps", "others" ), class = "factor")), .Names = c("X1", "X2", "fishery", "year", "div", "TOTALshark", "cat"), class = "data.frame", row.names = c(70L, 278L, 500L, 554L, 242L, 245L, 131L, 315L, 106L, 224L, 194L, 60L, 115L, 37L, 489L, 385L, 249L, 244L, 284L, 75L)) </code></pre> <p>I wish to have the same legend, but with a few colors based on which category "cat" variable (i.e.,, pelagic, groundfish) the fishery falls in.</p>
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    2. CO"I wish to have the same legend, but with a few colors based on which category "cat" variable (i.e.,, pelagic, groundfish) the fishery falls in." You mean you want the same fish but with colours varying according to the fishery? If so, won't changing your ggplot call to `ggplot(df, aes(year, TOTALshark, fill=cat)) + geom_bar(width=.5,stat="identity", position="dodge")+ facet_wrap(~div)` do the job?
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    3. CONo. What I would like is the above legend (with fishery), but with n colors according to cat (which is a broader category for the main fish targeted). So for example, all fisheries targeting "large pelagic" like tunas (BIGEYE TUNA-Line, BLUEFIN TUNA-Line, etc) will be one color, all fisheries targeting "groundfish" (COD(ATL)-gillnet, COD(ATL)-Line, etc) will be another color, and so forth. I want to color code the above legend according to cat. Hopefully this clarify what I'm trying to do! Thank you.
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