Plotting colours in R according to values -

-

i have dataframe columns x , y , value. using ggplot2 plot values @ specified coordinates. wish fill colour based on custom ranges value column. example :

value    colour 0 2    blue 2 5    green 5 10   red 10 20  yellow 20 30  orange 30 40  grey >40       black

how fill specific colour particular values using ggplot2 ?

i can resample data if required , map individual resampled value colours after that, example :

value    resampled value    colour 0 2        10             blue 2 5        20             green 5 10       30             red 10 20      40             yellow 20 30      50             orange 30 40      60             grey >40           70             black

but values not getting mapped colours code :

ggplot2::ggplot() + ggmap::theme_nothing() + ggplot2::geom_tile(data = xydataframe, alpha = 0.6, aes(x = x, y = y, fill=value)) +  ggplot2::scale_fill_gradientn(colours = c("blue", "green", "red", "yellow", "orange", "grey", "black"))

you should use cut make additional variable in data frame.

data$colour <- cut(data$value, c(0, 2, 5, 10, 20, 30, 40, inf),     c("blue", "green", "red", "yellow", "orange", "grey", "black"))

Comments

Post a Comment

Popular posts from this blog

yii2 - Yii 2 Running a Cron in the basic template -

-
i have seen instructions on running cron in advanced template, cant figure out how on basic template. have following controller in basic controllers folder. <?php namespace app\controllers; use yii\console\controller; /** * cron controller */ class croncontroller extends controller { public function actionindex() { echo "cron service runnning"; } public function actionmail($to) { echo "sending mail " . $to; } } i have navigated root of application , tried these comands yii cron php yii cron im getting unknown comand "cron" i know old question failed find actual answer this. if @ code yii exec file you'll notice requires /common/config/aliases.php file console/config/main.php. can naturally change these or copy on these advanced template. hope solves problem wanting same thing.
Read more

asp.net - 'System.Web.HttpContext' does not contain a definition for 'GetOwinContext' Mystery -

-
i realize question might seem trivial some, it's these types of things find myself fighting quite bit , want make sense of despite seeming losing battle in .net (for me anyway). so, if following: using system.web; ... applicationuser user = system.web.httpcontext.getowincontext().getusermanager<applicationusermanager>().findbyid(system.web.httpcontext.user.identity.getuserid()); that produces error in title , red getowincontext() , error cannot resolve symbol 'getowincontext()' however, if following (remove system.web in front of httpcontext ), works expected (or @ least no errors): using system.web; ... applicationuser user = httpcontext.getowincontext().getusermanager<applicationusermanager>().findbyid(system.web.httpcontext.user.identity.getuserid()); however, if (same line that's working using system.web commented out): //using system.web; ... applicationuser user = httpcontext.getowincontext().getusermana...
Read more

mercurial graft feature, can it copy? -

-
there new feature in mercurial 3, called 'graft' (graft local). job of moving change-set different branch. is there way "copy" change-set branch? i interested in in moving stuff qa branch production branch, still need code reside in qa. want copy. found , have tried few things, maybe it'll become clear more tinkering , reading... does have better way of 'cherry picking' change-sets move cross branch (or trunk)??? graft copies changesets, doesn't move them. hg graft (emphasis mine): this command uses mercurial's merge logic copy individual changes other branches without merging branches in history graph. known 'backporting' or 'cherry-picking' . default, graft copy user, date, , description source changesets.
Read more