r - Combining different data sources into one ggplot or lattice diagram -


in r, both ggplot2 , lattice package provide possibilities visualize data not x , y position considering additional factor, changing color, size or shape of observation representation (point, smooth line, etc.) or splitting visualization separate diagrams along factor.

example ggplot:

require(ggplot2) ggplot(diamonds, aes(x = carat, y = price, col=clarity)) +   geom_point(alpha = .3)

example lattice:

require(lattice) require(mlmrev); data(chem97, package = "mlmrev") densityplot(~ gcsescore | factor(score), chem97, groups = gender,             plot.points = false, auto.key = true)

obviously, these easy ways of differentiating data factor created use 1 single dataframe, containing observations shown. however, more have separate data inputs, in form of separate dataframes, containing different columns represented x , y. third factor separation in plot dataframe resp. data source itself. solution this, able find far, merging data 1 dataframe , adding column each source dataframe, containing third factor, resp. data source (so in each cell of column there same string expression). ggplot2 , lattice able separate data again third factor , visalize them separated, wished.

now final problem: seems poor workflow , not efficient bigger amounts of data. there perhaps alternative way achieve same result or @ least way efficiently automate last described workflow?

it's idea merge more data source 1 when working ggplot. there of course exception this, , ggplot give tools deal cases.

that said, it's possible pass data argument each geom_*

a general rule use if different data sources used in same geom_* have combined, if used in different geom_s, can (and maybe should) stay separate.

bind data sources use in same geom_*

df1 <- data.frame(group = letters[1:3],                   obs = runif(3))  df2 <- data.frame(group = letters[1:3],                   obs = runif(3))  library(purrr) dft <- list(df1 = df1, df2 = df2) %>%      map_df(~rbind(.x), .id = 'src')   library(ggplot2) ggplot(dft, aes(x = group, y = obs)) +     geom_line(aes(group = src, color = src), size = 1)

use different data sources

df1 <- data.frame(group = letters[1:3],                   hvalue = runif(3))  df2 <- data.frame(group = rep(letters[1:3], each = 3),                   pvalue = runif(9)) library(ggplot2) ggplot() +     geom_line(data = df1, aes(x = group, y = hvalue, group = 1), size = 1) +     geom_point(data = df2, aes(x = group, y = pvalue, color = group))


Comments

Post a Comment

Popular posts from this blog

inversion of control - Autofac named registration constructor injection -

does autofac support specifying registration name in components' constructors? example: ninject's namedattribute . you need use autofac.extras.attributed package on top achieve this so let's have 1 interface , 2 classes: public interface ihello { string sayhello(); } public class englishhello : ihello { public string sayhello() { return "hello"; } } public class frenchhello : ihello { public string sayhello() { return "bonjour"; } } then have consumer class, in want select instance injected: public class helloconsumer { private readonly ihello helloservice; public helloconsumer([withkey("en")] ihello helloservice) { if (helloservice == null) { throw new argumentnullexception("helloservice"); } this.helloservice = helloservice; } public string sayhello() { return this.helloservice.sayhello()...
Read more

verilog - Systemverilog dynamic casting issues -

i've code snippet following in testbench function void write_to_port( my_data_type_base data ); my_data_type_extended data_ext; if(!$cast(data_ext, data)); `uvm_error(get_type_name(), "failed cast"); `uvm_info(get_name(), $psprintf("data_ext :\n%s", data_ext.sprint()), uvm_medium) // write data_ext out port.... endfunction when run it, i'm getting uvm_error "failed cast." i'm not quire sure why $cast not returning 1. can see, i'm printing out extended class data item after casting uvm_info. can see it's being cast properly. if don't use $cast if condition, don't runtime error. isn't coding practice use if dynamic cast check if $cast returning 1 ? what might reason behind cast not returning 1 in above case? i think semicolon on line 'if' not belong? i think consumes if statement, , uvm_error executes regardless of how if evaluates: if(!$cast(data_ext, data)); <- no semico...
Read more

ios - Change Storyboard View using Seague -

i have following code checks connection server, , depending on want change views if no connection found. nsstring *connect = [nsstring stringwithcontentsofurl:[nsurl urlwithstring:@"http://myserver.com"] encoding:nsutf8stringencoding error:nil]; if (connect == null) { [self performseguewithidentifier:@"network_failure" sender:self]; } else { // other code here } my problem not change views. have added storyboard segue between 2 views identifier of network_failure . not have navigation controller or that, problem? thanks help! no not problem. first of all, in objectivec exists nil object oriented null . must use that. so: if(connect == nil) or better: if(!connect) so due fact nil not same of null , probably code does't enter in if scope . you have been able discover breakpoint. anyway: be sure set trigger segue (line) 2 view controller , , name network_failure (that not best name. should instead view1toview2 ) as, m...
Read more