r - ggplot2 manual legend not displaying -


i've searched interwebs hard why cannot add legend ggplot2. 

g.2plot1<-ggplot(input_csv,aes(x=r_od_month,y=damwamt))+ geom_line(colour = "black")+ geom_line(aes(x=r_od_month,y = scaled_percent_mw), colour = "blue") + scale_colour_manual(name="legend", values = c("black", "blue")) + scale_linetype_manual(name="legend", values = c("dashed", "dotted"))   g.2plot1

when this, nothing, no errors in console , no legend on plot. please tell me i'm dong wrong?

dput(head(input_csv))  structure(list(od_month = c("12/1/2010", "1/1/2011", "2/1/2011",  "3/1/2011", "4/1/2011", "5/1/2011"), damwamt = c(219869.89, 214323.24,  193976.03, 249174.62, 213529.32, 226318.98), nb_made_whole = c(39l,  37l, 26l, 45l, 74l, 64l), nb_consid_mw = c(818l, 871l, 874l,  831l, 1060l, 1418l), percent_mw = c(0.0404, 0.048, 0.0371, 0.0616,  0.0604, 0.0525), scaled_percent_mw = c(151898.635570388, 183223.057973301,  138297.241632282, 239277.287536408, 234331.326104369, 201770.413343447 ), r_od_month = structure(c(14944, 14975, 15006, 15034, 15065,  15095), class = "date")), .names = c("od_month", "damwamt", "nb_made_whole",  "nb_consid_mw", "percent_mw", "scaled_percent_mw", "r_od_month" ), row.names = c(na, 6l), class = "data.frame")

legends drawn aesthetics. since colour not aesthetic in case, there no legend. trick convert data wide format (where every type of data has own column) long format (where there column indicating data type , column giving corresponding value). done follows:

library(reshape2) plot.data <- melt(input_csv,     id="r_od_month",measure=c("damwamt","scaled_percent_mw"))

melt returns data frame in long format column indicating data type called variable , column values called value.

now can let ggplot pick colours mapping column variable on colour:

ggplot(plot.data,aes(x=r_od_month,y=value,colour=variable)) + geom_line() +    labs(title="my plot",x="x-axis",y="y-axis",colour="colours") +    scale_colour_discrete(labels=c("this","that"))

the last 2 lines show, how can add plot title, change axis labels , legend title (labs()), , change labels in legend (scale_colour_discrete).


Comments

Post a Comment

Popular posts from this blog

c++ - Difference between pre and post decrement in recursive function argument -

i have following sample code used pre-decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(--c); cout << c << endl; return; } } this function give output input 4 : dp3 dp2 dp1 dp0 0 1 2 3 but when use post decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(c--); cout << c << endl; return; } } output goes in infinite loop dp4 can explain me in detail why happens ? this happens because function(c--) called same value of c , when finishes c decremented. recursively called, hence called same value no chance of return , hit stack overflow error. assume this, int x = 1, y = 0; y = x++ result y == 1 , x == 2. if y = ++x , bot x , y 2.
Read more

php - Nothing but 'run(); ' when browsing to my local project, how do I fix this? -

i added new project. made mistake in projectname.conf file in sites-available apache2, led me reinstalling apache2. after reinstalling , re-enabling projects on every page of every project .. <body> run(); </body> .. i've run composer update, restarted service, restarted pc, checked config files, tried disabling new project. there nothing in error log, , access.log: 127.0.0.1 - - [15/may/2015:01:40:47 +0200] "get / http/1.1" 304 181 "-" "mozilla/5.0 (x11; ubuntu; linux x86_64; rv:38.0) gecko/20100101 firefox/38.0" maybe i'm forgetting apache2 reinstall? don't think did different last time installed it. looks haven't setup php correctly. take @ this great guide , maybe you're forgetting link php config apache2.
Read more

php - How can I echo out this array? -

i don't know how go grabbing data in variable , put foreach loop. class tree{ private $info = array( array('name'=>'jim','state'=>'nu','company'=>'nu','phone'=>array('cell'=>'5615111111','office'=>'5611111111'),'email'=>array('primary'=>'exs@example.com','ex@there.com')), array('name'=>'joe smith','city'=>'phoenix','phone'=>'4805551111','email'=>'jsmith@some_email.com'), array('name'=>'john doe','city'=>'chandler','company'=>'doe co.','email'=>array('jdoe@gmail.com','personal'=>'email@email.com'),'phone'=>'6025550002') ); } if you're inside of class, can access private variable using $this->variablename . example, i...
Read more