[R] plot with different symbols and colors according to the factor levels

[Greg Snow]

And you can specify the symbols and colors using code like:

with(lili, plot(y,conc, pch= c(16,18,17)[sample],
col=c('red','green','blue')[sample], log="y"))

modifying to meet your data and preferences, of course.

On Tue, Aug 30, 2016 at 11:48 AM, Clint Bowman <clint at ecy.wa.gov> wrote:
>
> with(lili,plot(y,conc,pch=sample,col=sample,log="y"))
>
> gives a better plot
>
>
> Clint Bowman                    INTERNET:       clint at ecy.wa.gov
> Air Quality Modeler             INTERNET:       clint at math.utah.edu
> Department of Ecology           VOICE:          (360) 407-6815
> PO Box 47600                    FAX:            (360) 407-7534
> Olympia, WA 98504-7600
>
>         USPS:           PO Box 47600, Olympia, WA 98504-7600
>         Parcels:        300 Desmond Drive, Lacey, WA 98503-1274
>
> On Tue, 30 Aug 2016, Clint Bowman wrote:
>
>> Hanna,
>>
>> lili<-read.table("lili.txt",header=T)  # don't forget to label the row
>> number if it's in your data
>>
>> with(lili,plot(y,conc,pch=sample,col=sample))
>>
>> Clint
>>
>>
>> Clint Bowman                    INTERNET:       clint at ecy.wa.gov
>> Air Quality Modeler             INTERNET:       clint at math.utah.edu
>> Department of Ecology           VOICE:          (360) 407-6815
>> PO Box 47600                    FAX:            (360) 407-7534
>> Olympia, WA 98504-7600
>>
>>         USPS:           PO Box 47600, Olympia, WA 98504-7600
>>         Parcels:        300 Desmond Drive, Lacey, WA 98503-1274
>>
>> On Tue, 30 Aug 2016, li li wrote:
>>
>>>  Hi all,
>>>  I have the following data. I want to plot the data (y ~ conc)
>>>  with different symbols and colors corresponding to different levels of
>>> the
>>>  factor sample.
>>>  I could create a column with color and pch and then do the plot, but I
>>> am
>>>  sure there are much better ways.
>>>  Can anyone make suggestions?
>>>   Hanna
>>>
>>>
>>>
>>>    y         conc sample
>>>  1  33 20.000000000      1
>>>  2  33  5.000000000      1
>>>  3  35  1.250000000      1
>>>  4  43  0.312500000      1
>>>  5  58  0.078125000      1
>>>  6  54  0.019531250      1
>>>  7  57  0.004882812      1
>>>  8  57  0.001220703      1
>>>  9  32 20.000000000      1
>>>  10 32  5.000000000      1
>>>  11 34  1.250000000      1
>>>  12 52  0.312500000      1
>>>  13 57  0.078125000      1
>>>  14 58  0.019531250      1
>>>  15 59  0.004882812      1
>>>  16 50  0.001220703      1
>>>  17 34 20.000000000      2
>>>  18 34  5.000000000      2
>>>  19 38  1.250000000      2
>>>  20 53  0.312500000      2
>>>  21 57  0.078125000      2
>>>  22 57  0.019531250      2
>>>  23 57  0.004882812      2
>>>  24 52  0.001220703      2
>>>  25 34 20.000000000      2
>>>  26 33  5.000000000      2
>>>  27 36  1.250000000      2
>>>  28 48  0.312500000      2
>>>  29 58  0.078125000      2
>>>  30 57  0.019531250      2
>>>  31 58  0.004882812      2
>>>  32 53  0.001220703      2
>>>  33 34 20.000000000      2
>>>  34 35  5.000000000      2
>>>  35 37  1.250000000      2
>>>  36 49  0.312500000      2
>>>  37 55  0.078125000      2
>>>  38 59  0.019531250      2
>>>  39 57  0.004882812      2
>>>  40 54  0.001220703      2
>>>  41 36 20.000000000      3
>>>  42 33  5.000000000      3
>>>  43 36  1.250000000      3
>>>  44 51  0.312500000      3
>>>  45 57  0.078125000      3
>>>  46 57  0.019531250      3
>>>  47 59  0.004882812      3
>>>  48 56  0.001220703      3
>>>  49 33 20.000000000      3
>>>  50 32  5.000000000      3
>>>  51 35  1.250000000      3
>>>  52 47  0.312500000      3
>>>  53 57  0.078125000      3
>>>  54 56  0.019531250      3
>>>  55 57  0.004882812      3
>>>  56 53  0.001220703      3
>>>  57 33 20.000000000      3
>>>  58 34  5.000000000      3
>>>  59 38  1.250000000      3
>>>  60 52  0.312500000      3
>>>  61 56  0.078125000      3
>>>  62 61  0.019531250      3
>>>  63 56  0.004882812      3
>>>  64 55  0.001220703      3
>>>
>>>   [[alternative HTML version deleted]]
>>>
>>>  ______________________________________________
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>>>  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.
>>>
>>
>> ______________________________________________
>> 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.
>>
>>
>
> ______________________________________________
> 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.



-- 
Gregory (Greg) L. Snow Ph.D.
538280 at gmail.com