[R] degree sign

[Cathy Lee Gierke]

Wonderful!  That works.

Cathy Lee Gierke

*"We are what we repeatedly do.  Excellence, then, is not an act, but a
habit." Aristotle*

On Sat, Mar 19, 2016 at 6:44 PM, David Winsemius <dwinsemius at comcast.net>
wrote:

>
> > On Mar 19, 2016, at 1:58 PM, Cathy Lee Gierke <leegi001 at umn.edu> wrote:
> >
> > My actual plot call is long and complicated, so I tried to simplify it
> in the last message.....here is the actual, using David's proposed
> solution.  It is not working.   What I want to see printed is the following
> (with degree symbols after 73 and 296).
>
>
> >  Since I reuse this string in various ways, I would like to build a
> variable to hold it that I can plug into plots when needed:
> > Hours from Reference Time: 201302060000
> > Model span = 24.00 hrs     o −73     b −296
>
> The degree-object in plotmath needs to be placed within an R object of
> class expression.
>
> For multi-line expression delivery in the outer portions of a graphic, I
> would recommend using mtext:
>
> -------------
>
> myexpr <- expression("Hours from Reference Time: 201302060000",
>                       "Model span = 24.00 hrs     o −73"*degree*phantom("
>     ")*"b −296"*degree)
>
> plot(1,1)
>  mtext(myexpr[[1]] , side=1,line=2)
>  mtext(myexpr[[2]] , side=1,line=3)
>
> >
> > So I set xlab=printXlab value with David's solution, below, in the plot
> (this is the actual printXlab value, instead of the simplified one):
> >
> >  xl = bquote( .(Orthophase[i,j] )*degree )
> > printXlab<-paste("Hours from Reference Time:",RefTimeString,"Model span
> =",format(magDt,digits=3,nsmall=2),"hrs    o",Orthophase[i,j],xl,"
>  b",Bathyphase[i,j])
>
> If you are tryng to substitute
> >
> > and here is the result I get (weird duplicates....but most importantly,
> no degree symbol:
> >
> >
> > Hours from Reference Time: 201302060000 Model span = 24.00 hrs o −73 *
> Hours from Reference Time: 201302060000 Model span = 24.00 hrs o −73 −73
> Hours from Reference Time: 201302060000 Model span = 24.00 hrs o −73 degree
> >
> > b −296 b −296
> >
> > b −296
> >
> > ----------------------
> > So, I tried to set xlab as Uwe's proposal (without paste, and without
> commas):
> > printXlab<-expression("Hours from Reference Time:" RefTimeString "Model
> span =" format(magDt,digits=3,nsmall=2) "hrs    o" * Orthophase[i,j] *
> degree"     b"* Bathyphase[i,j] * degree)     #  degree~C
>
> You may want to use substitute or bquote to create an expression that has
> evaluated values (if you will) for:
>
> Orthophase[i,j]
> Bathyphase[i,j]
>
> Something like this
>
>  orth=3.56
>  bathy=5.87
>  RefTimeStr <- "test"
>  magDT <- "1999-01-01";
>  printXlab  <-  list( bquote("Hours from Reference Time:"~ .(RefTimeStr)),
>          bquote("Model span ="*.(format(magDt,digits=3,nsmall=2))* " hrs
>   o" * .(orth) * degree*"C     b"* .(bathy) * degree*C))
>  plot(1,1, xlab="")
>  mtext(sapply( printXlab, as.expression) , side=1,
>            line=2:3)
>
>
> --
> David.
>
> >
> > I get "unexpected symbol at ^RefTimeStrng" so it doesn't like the
> missing commas.
> >
> > Then I try it with commas, except around the degree parts:
> > printXlab<-expression("Hours from Reference Time:" RefTimeString "Model
> span =" format(magDt,digits=3,nsmall=2) "hrs    o" * Orthophase[i,j] *
> degree"     b"* Bathyphase[i,j] * degree)     #  degree~C
> >
> > It runs, but here is what prints:
> > Hours from Reference Time:
> >
> > ​Then I try with all commas replaced by *:
> > printXlab<-expression("Hours from Reference Time:"* RefTimeString
> *"Model span =" * format(magDt,digits=3,nsmall=2) * "hrs    o" *
> Orthophase[i,j] * degree * "     b"* Bathyphase[i,j] * degree * " ")     #
> degree~C
> >
> > ​And I get degree signs (sort of)!!  But the rest is wrong. The
> variables are not evaluated:
> > Hours from Reference Time:RefTimeStringModel span =format(magDt, 3,
> 2)hrs oOrthophasei° bBathyphasei°
> >
> > ​I don't really understand what state is required for the degrees to
> print....​
>
> >
> > Cathy Lee Gierke
> >
> > "We are what we repeatedly do.  Excellence, then, is not an act, but a
> habit." Aristotle
> >
> > On Sat, Mar 19, 2016 at 2:04 AM, David Winsemius <dwinsemius at comcast.net>
> wrote:
> >
> > > On Mar 18, 2016, at 1:58 PM, Cathy Lee Gierke <leegi001 at umn.edu>
> wrote:
> > >
> > > I have searched and tried many things but cannot get anything to
> work.  I
> > > just want to print out a degree sign after a the Orthophase number.
> > >
> > > The following list of "xl" values are all ones I have tried.  Granted
> they
> > > are not what I want, but I have tried them all, and none of them print
> out
> > > a degree symbol...
> > >
> > > #                   xl = expression(paste("Orthophase [", {
> > > #                   }^o, "]"))
> > >                  #xl<-~degree~C
> > >                  #xl<-parse(text = ~degree)
> > >                  #xl<-parse(text = paste(" ", "~degree", sep = ""))
> > >                  #xl<-expression(~degree)
> > >                  xl <- parse(text = paste(Orthophase[i,j], "*degree ~
> S",
> > > sep = ""))
> > >
> > >
> > >                  printXlab<-paste("Orthophase    ",Orthophase[i,j],xl,"
> > >  ")
> > >
> > > plot(MyData$time.hour[plotData],newData[plotData],type="l", xaxt="n",
> > > xlab=printXlab,.....
> >
> > Ya' know Cathy. It would be nice if you would say what it was that you
> actually wanted to do rather than offering multiple failures This does not
> throw an error:
> >
> > xl = expression(paste("Orthophase [", {
> >                   }^o, "]"))
> > plot(1,1,type="l", xaxt="n", xlab=xl)
> >
> >
> >
> > But perhaps you want to pull in an evaluated result from an object in
> the workspace? This should work:
> >
> > Orthophase <- matrix( 4:1, 2)
> > i=1;j=1
> > xl = bquote( .(Orthophase [i,j] )*degree )
> > plot(1,1,type="l", xaxt="n",
> > xlab=xl)
> >
> > >
> > >
> > > Cathy Lee Gierke
> > >
> > > *"We are what we repeatedly do.  Excellence, then, is not an act, but a
> > > habit." Aristotle*
> > >
> > >       [[alternative HTML version deleted]]
> > >
> > > ______________________________________________
> > > R-help at 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.
> >
> > David Winsemius
> > Alameda, CA, USA
> >
> >
>
> David Winsemius
> Alameda, CA, USA
>
>

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