[R] Alpha not working in geom_rect

[adel daoud]

Hi Jim,

Thanks for the input but that did not work. I am suing Rstudio by the way
and I guess that has a better device that would support ggplot output.

The annotate options works but that does not explain why the geom_area does
not work:
annotate("rect", xmin=2, xmax=10, ymin=0,  ymax=1, fill="black", alpha=0.5)

Best
Adel


--

Adel Daoud, PhD, Researcher



The New School for Social Research,

Visiting Scholar in the Economics Department,

6 East 16th Street New York, NY 10003,

daouda at newschool.edu





University of Gothenburg

Department of Sociology and Work Science,

Box 720

405 30, Göteborg, Sweden

Visiting address: Sprängkullsgatan 25, room F411

Sprängkullsgatan 25, room K109

+46 031-786 41 73

Adel.daoud at sociology.gu.se

On Sun, Mar 8, 2015 at 12:46 AM, Jim Lemon <drjimlemon at gmail.com> wrote:

> Hi Adel,
> Almost certainly because the device you were using doesn't support
> transparency.Try it with a PDF device and check the resulting file in a PDF
> reader:
>
> pdf("ad.pdf")
> print(p)
> dev.off()
>
> Jim
>
>
> On Sun, Mar 8, 2015 at 4:39 AM, Adel <adel.daoud at socav.gu.se> wrote:
>
>> Hi
>> I am trying to activate the alpha argument to work, but for some reason it
>> does not to play with me. Anybody has an idea why?
>>
>>
>> p <- ggplot(data = prediction_df, aes(x=x, y=prediction, fill=threshold))
>> +
>> geom_area(colour="black", size=.2, alpha=.4) +
>> scale_fill_brewer(palette="Set1",
>> breaks=rev(levels(prediction_df$threshold)))
>> p + geom_rect(aes(xmin=2, xmax=10, ymin=(0), ymax=(1)), fill="black",
>> alpha=0.5)
>>
>>
>> prediction_df
>>      x prediction  threshold
>> 1  -10  0.5694161       noAF
>> 2   -9  0.5700513       noAF
>> 3   -8  0.5706863       noAF
>> 4   -7  0.5713211       noAF
>> 5   -6  0.5719556       noAF
>> 6   -5  0.5725899       noAF
>> 7   -4  0.5732240       noAF
>> 8   -3  0.5738578       noAF
>> 9   -2  0.5744914       noAF
>> 10  -1  0.5751247       noAF
>> 11   0  0.5757578       noAF
>> 12   1  0.5763906       noAF
>> 13   2  0.5770232       noAF
>> 14   3  0.5776556       noAF
>> 15   4  0.5782876       noAF
>> 16   5  0.5789195       noAF
>> 17   6  0.5795510       noAF
>> 18   7  0.5801823       noAF
>> 19   8  0.5808134       noAF
>> 20   9  0.5814441       noAF
>> 21  10  0.5820747       noAF
>> 22 -10  0.2359140   singleAF
>> 23  -9  0.2356847   singleAF
>> 24  -8  0.2354550   singleAF
>> 25  -7  0.2352249   singleAF
>> 26  -6  0.2349943   singleAF
>> 27  -5  0.2347634   singleAF
>> 28  -4  0.2345321   singleAF
>> 29  -3  0.2343003   singleAF
>> 30  -2  0.2340682   singleAF
>> 31  -1  0.2338356   singleAF
>> 32   0  0.2336027   singleAF
>> 33   1  0.2333694   singleAF
>> 34   2  0.2331357   singleAF
>> 35   3  0.2329016   singleAF
>> 36   4  0.2326671   singleAF
>> 37   5  0.2324322   singleAF
>> 38   6  0.2321969   singleAF
>> 39   7  0.2319613   singleAF
>> 40   8  0.2317253   singleAF
>> 41   9  0.2314889   singleAF
>> 42  10  0.2312522   singleAF
>> 43 -10  0.1946699 multipleAF
>> 44  -9  0.1942640 multipleAF
>> 45  -8  0.1938587 multipleAF
>> 46  -7  0.1934540 multipleAF
>> 47  -6  0.1930500 multipleAF
>> 48  -5  0.1926467 multipleAF
>> 49  -4  0.1922440 multipleAF
>> 50  -3  0.1918419 multipleAF
>> 51  -2  0.1914404 multipleAF
>> 52  -1  0.1910397 multipleAF
>> 53   0  0.1906395 multipleAF
>> 54   1  0.1902400 multipleAF
>> 55   2  0.1898411 multipleAF
>> 56   3  0.1894429 multipleAF
>> 57   4  0.1890453 multipleAF
>> 58   5  0.1886483 multipleAF
>> 59   6  0.1882520 multipleAF
>> 60   7  0.1878564 multipleAF
>> 61   8  0.1874613 multipleAF
>> 62   9  0.1870669 multipleAF
>> 63  10  0.1866732 multipleAF
>>
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://r.789695.n4.nabble.com/Alpha-not-working-in-geom-rect-tp4704291.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
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>
>

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