Thanks for the suggestion. I believe it is exactly what I need. I will
try this function. Thanks!
Regards,
Shu Fai
On Mon, Oct 16, 2023 at 3:39 AM Paul Murrell wrote:
>
> Hi
>
> You could also look at dev.capture(), depending on which screen device
> you are using.
>
> Paul
>
> On 16/10/23
Thanks a lot for introducing these functions! I am not aware of them
but it seems that they can help me to do what I want to do.
Regards,
Shu Fai
Regards,
Shu Fai Cheung (張樹輝)
On Mon, Oct 16, 2023 at 12:24 AM Duncan Murdoch
wrote:
>
> On 15/10/2023 12:05 p.m., Shu Fai Cheung wrote:
> > Let me
Hi
You could also look at dev.capture(), depending on which screen device
you are using.
Paul
On 16/10/23 05:24, Duncan Murdoch wrote:
On 15/10/2023 12:05 p.m., Shu Fai Cheung wrote:
> Let me clarify my question:
>
> plot.new()
> polygon(c(.5, .5, .75, .8), c(.25, .3, .4, .5))
>
> If
Dear Jason,
I do not think that the solution based on aggregate offered by GPT was
correct. That quasi-solution only aggregates for every individual level.
As I understand, you want the cumulative sum. The idea was proposed by
Bert; you need only to sort first based on the cutoff (e.g.
On 15/10/2023 12:05 p.m., Shu Fai Cheung wrote:
Let me clarify my question:
plot.new()
polygon(c(.5, .5, .75, .8), c(.25, .3, .4, .5))
If the device is an on-screen device, can I check whether a particular area
has anything drawn on it, or, to be precise, whether the color of a
particular area
Let me clarify my question:
plot.new()
polygon(c(.5, .5, .75, .8), c(.25, .3, .4, .5))
If the device is an on-screen device, can I check whether a particular area
has anything drawn on it, or, to be precise, whether the color of a
particular area has all pixels equal to the background color.
Sorry that I did not make my question clear enough.
If the device is file based (e.g., a PNG file), then I believe I can do
that, by using functions that can inspect an image. This is the solution I
originally wanted to try. However, it requires creating a file in the
process.
I would like to
This question is not clear to me. What is it you hope to retrieve from the
device?
Note that the type of device in your example is system-dependent. The content
in a png() would be different than the content in a win.graph() device.
On October 15, 2023 8:04:00 AM PDT, Shu Fai Cheung
wrote:
Hi All,
I want to inspect the content of a plot generated by another function.
For example:
plot.new()
polygon(c(.5, .5, .75, .8), c(.25, .3, .4, .5))
A polygon will be drawn. If I do not know what has been done to generate
the plot, is it possible to query the content in the active device?
After I sent this, a colleague referred me to the GPT-4 interface on Bing. I
entered the exact email query below and it provided the following solution,
which worked for the toy example and was successfully adapted to my application:
# Define the cutoffs
cutoffs <- seq(0, 0.15, by = 0.01)
#
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