?openxlsx::read.xlsx
The fourth argument by default is TRUE
colNames: If ‘TRUE’, the first row of data will be used as column
names.
You will need to specify it explicitly
as colNames=FALSE
The other arguments will probably also be useful to you.
On Thu, Oct 22, 2020 at 11:56 PM Joh
Hi,
I try to read 6 rows (from 5th to 10th) from Excel, but I can always get
5. The first row of the 6 becomes the header. How can I add something like
"header = FALSE" in the formula, so that the resulting data would be all
the 6 rows? A similar problem occurs in readxl::read_xlsx. Thank you!
This can happens if save an object with an environment part of a package, e.g.
$ R --quiet --vanilla
> fcn <- Matrix::Matrix
> environment(fcn)
> quit("yes") # saves the workspace in an .RData file
# Loading the .RData file at startup triggers 'Matrix' to be loaded
$ R --quiet --no-init-file -e
Can you be more specific about what conditions cause R to automatically load a
package when a .RData file is loaded? My experience has actually been the
opposite.
On October 22, 2020 6:13:11 PM PDT, Henrik Bengtsson
wrote:
>As Jeff says, it might be that you have a ~/.Rprofile file with
>instr
On Thu, 22 Oct 2020 18:13:11 -0700
Henrik Bengtsson wrote:
> As Jeff says, it might be that you have a ~/.Rprofile file with
> instructions to load packages when R starts. It could also be that
> you have a .RData file, which is saved if you answer yes to:
>
> > Save workspace image? [y/n/c]:
As Jeff says, it might be that you have a ~/.Rprofile file with
instructions to load packages when R starts. It could also be that
you have a .RData file, which is saved if you answer yes to:
> Save workspace image? [y/n/c]: y
when you quit R. If this file exists, then R loads it and all the
o
> It should be a 2D slice/plane embedded into a 3D space.
I was able to come up with the plot, attached.
My intention was to plot national boundaries on the surface of a sphere.
And put the slice inside.
However, I haven't (as yet) worked out how to get the coordinates for
the boundaries.
Let me
Have you looked into your .Rprofile file? Loading packages is not something R
normally does without your telling it to do so, but many people forget that
they have done so.
On October 22, 2020 3:47:04 PM PDT, Michael L Friendly
wrote:
>[env: Windows, R 3.6.6]
>
>When I start R from the R Gui i
[env: Windows, R 3.6.6]
When I start R from the R Gui icon or from RStudio, I get a large number of
packages loaded via a namespace. Not entirely clear where these come from.
As a result, I often run into problems updating packages because something is
already loaded. How can start a new gui s
Thanks for your idea. It should be a 2D slice/plane embedded into a 3D
space. Could be static, I just need to make a single figure from it for
illustration of the Earth together with its interior in 3D. So, the
interior would be a slice in 2D along a fixed longitude. And along this 2D
slice would b
Hello,
this is very close to exactly what I need! I have tried it and it works
nicely, I just have to map some values onto to the polygon or 2D plane that
cuts into the 3D object.
Thanks!
Balint
On Thu 22. Oct 2020 at 21:28, Duncan Murdoch
wrote:
> On 21/10/2020 8:45 a.m., Balint Radics wrote
Hi
Thanks a lot for this pointer, I will need to look at it. I did indeed
google but did not find an example. In the meantime some additional
solutions were suggested, that I also need to try.
Cheers,
Balint
On Thu 22. Oct 2020 at 20:56, Bert Gunter wrote:
> 1. Have you looked here:
> https://
If you have "value" as a function of latitude and radius, isn't that a
2D (not 3D) scalar field?
Which can be plotted using a regular heatmap.
If you want a curved edge where depth=0 (radius=?), that's not too
difficult to achieve.
Not quite sure what continent boundaries mean in this context, but
On 21/10/2020 8:45 a.m., Balint Radics wrote:
Hello,
Could someone suggest a package/way to make a 3D raster plot of the Earth
(with continent boundaries), and then make a "cut" or "slice" of it such
that one can also visualize some scalar quantity as a function of the
Radius/Depth across that g
> 10.1/0.1 was successfully calculated
Note that 'computed as' is not the same as 'printed as'. Computations
are
done with 52 binary digits of precision and printing is, by default, done
with
7 decimal digits of precision. See FAQ 7.31.
> 101 - 10.1/0.1
[1] 1.421085e-14
> options(digits=17)
FAQ 7.31
> 10.1/.1
[1] 101
> print(10.1/.1, digits=17)
[1] 100.99
> floor(10.1/.1)
[1] 100
> floor(10.1*10)
[1] 101
> matrix(0, 2.9, 3.9)
[,1] [,2] [,3]
[1,]000
[2,]000
>
note that the dimension arguments are passed through floor() before
they are used.
(Neglected to cc the list--please reply-all to this version)
What was the warning?
I hazard a guess you've run into precision issues for binary
representation, and the result of your division is not *exactly* 101.
Pat
On Thu, Oct 22, 2020 at 2:42 PM 奈良県奈良市 wrote:
>
> Dear R project team
>
> I
1. Answers on this list are from volunteers who are not part of any R
project team. We have no official status and what we say comes with no
guarantees.
2. There is no such thing as a "matrix 'environment' ".
3. The answer to your question is "computer arithmetic." See FAQ 7.31.
Someone may follo
1. Have you looked here:
https://cran.r-project.org/web/views/Spatial.html
(I assume you have done some web searches on possible terms like "3D Earth
Data R" or whatever)
2. You might try posting on the r-sig-geo list rather than here, where
relative expertise may more likely be available.
Cheers
Dear R project team
I used the function of "matrix" as follows:
matrix(c(1:3030), 10.1/0.1)
However, in the function, matrix, 10.1/0.1 was regarded as 100 not as 101.
Therefore, a warning message appeared.
On the other hand, matrix(c(1:3030), 101) or matrix(c(1:3030), 10.1*10) was
OK. Of course, s
Hello,
Could someone suggest a package/way to make a 3D raster plot of the Earth
(with continent boundaries), and then make a "cut" or "slice" of it such
that one can also visualize some scalar quantity as a function of the
Radius/Depth across that given slice ?
Formally, I would have a given, fi
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