[R] [External] Re: Error in colouring by group in core plot R

iuke-tier@ey m@iii@g oii uiow@@edu
2020-04-24T12:51:48Z

Or using matplot:

matplot(cbind(g1, g2, g3), type = "l",
         col = c("red", "black", "blue"), lty = 1,
lwd = 2)

Best,

luke

On Fri, 24 Apr 2020, Jim Lemon wrote:

> Hi Luigi,
> This is pretty easy using "plot" and "lines":
>
> # assume your example data
> plot(g1,col ="red",type = "l", lwd = 2,
>     xlab = "Days since start", ylab = "Count of
infections",
>     main = "Daily cases of COVID-19")
> lines(g2,col="black", lwd = 2)
> lines(g3,col="blue", lwd = 2)
> text(c(15,80,53),rep(6000,3),
>
c("China","Germany","Italy"),col=c("red","black","blue"))
>
> Jim
>
> On Fri, Apr 24, 2020 at 5:25 PM Luigi Marongiu <marongiu.luigi at
gmail.com> wrote:
>>
>> Hello,
>> I am trying to make an epidemic plot of the COVID pandemic using the
core
>> plot function. I am looking at three countries and the countries are as
>> factors. The idea is to colour the entry by country, following this
scheme:
>> ```
>> df = data.frame(index = 1:10,
>>                 value = c(rnorm(10), rnorm(10), rnorm(10)),
>>                 set = c(rep("Group 1", 3), rep("Group
2", 3), rep("Group
>> 3", 4)))
>> plot(df$index ~ df$value, col=c("blue", "orange",
"purple")[df$set])
>> ```
>> But in the actual graph there is only one colour:
>> ```
>> Index = c(1:101)
>> g1 =
c(0,259,457,688,769,1771,1459,1737,1981,2099,2589,2825,3235,3884,3694,
>>
>>  3143,3385,2652,2973,2467,2015,14108,5090,2641,2008,2048,1888,1749,391,
>>
889,823,648,214,508,406,433,327,427,573,202,125,119,139,143,99,44,40,
>>
>>  0,0,0,0,0,0,0,0,0,0,0,0,46,39,78,47,67,55,54,45,0,79,36,35,0,0,0,39,0,
>>        0,63,42,46,99,108,89,46,46,0,325,0,0,0,0,0,0,0,0,0,0,0,0,0,0)
>> g2 >>
c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
>>
0,0,0,0,0,0,0,59,283,125,130,240,184,341,401,779,930,924,1214,1459,
>>
2095,2960,2993,4528,2516,2509,4183,3935,4332,6615,6933,6824,4740,
>>
4450,4923,6173,6813,6365,4933,4031,3252,4288,5633,4939,3936,3281,
>>        2402,2218,2138,2543,2945,3699,2327,2018,1323,1388,2195,2481,0,0,
>>        0,0,0,0,0,0)
>> g3= c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,58,
>>
78,72,94,147,185,234,239,573,335,466,587,769,778,1247,1492,1797,977,
>>       2313,2651,2547,3497,3590,3233,3526,4207,5322,5986,6557,5560,4789,
>>       5249,5210,6203,5909,5974,5217,4050,4053,4782,4668,4585,4805,4316,
>>       3599,3039,3836,4204,3951,4694,4092,3153,3961,2667,3786,3493,3491,
>>       3047,2256,2729,3370,2646,0,0,0,0,0,0,0,0)
>> Incidence = c(g1, g2, g3)
>> Country = c(rep("China", length(Index)),
rep("Germany", length(Index)),
>>             rep("Italy", length(Index)))
>> df = data.frame(Index, Incidence, Country)
>> plot(df$Incidence ~ df$Index,
>>      col = c("red", "black",
"blue")[df$Country],
>>      type = "l", lwd = 2,
>>      xaxt = "n",
>>      xlab = expression(bold("Date")),
>>      ylab = expression(bold("Incidence")),
>>      main = "Raw values")
>> ```
>>
>> What am I missing?
>> Thank you
>>
>> --
>> Best regards,
>> Luigi
>>
>>         [[alternative HTML version deleted]]
>>
>> ______________________________________________
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>> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>
> ______________________________________________
> 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.
>

--
Luke Tierney
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa                  Phone:             319-335-3386
Department of Statistics and        Fax:               319-335-3017
    Actuarial Science
241 Schaeffer Hall                  email:   luke-tierney at uiowa.edu
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