On Thu, 24 Feb 2022 11:00:08 -0500
Paul Bernal wrote:
> Each pixel column in the training set has a name like pixel x, where
> x is an integer between 0 and 783, inclusive. To locate this pixel on
> the image, suppose that we have decomposed x as x = i ∗ 28 + j, where
> i and j are integers
On Thu, 24 Feb 2022 13:31:09 -0500
Paul Bernal wrote:
> Basically, what I am being asked to do is to take the
> train.csv dataset, and store it in a data structure so that the data
> can be reshaped into a matrix of size 28 x 28, then I just need to
> print some indices of that (e.g. index 1, 2,
Hi Paul,
I may be missing something, but you can transform a vector to a matrix
of any desired size by using matrix().
For more nuanced processing of images, you might look into one of the
many image processing packages in R, or even the raster package (or
the newer terra).
Sarah
On Thu, Feb
Dear Ivan, this is what I did:
dataframe_train <- as.matrix((read.csv(file_path_2, header=TRUE,
stringsAsFactors = FALSE)))
dim(dataframe_train) <- c(28,28)
The file I read was the one I attached in the first email. Would this do
the work to reshape original dataset into a 28 x 28 matrix? When I
Thank you Ivan. Basically, what I am being asked to do is to take the
train.csv dataset, and store it in a data structure so that the data can be
reshaped into a matrix of size 28 x 28, then I just need to print some
indices of that (e.g. index 1, 2, 4, 7,, etc.)
I basically tried the following:
This forum often discusses different ways of looking at a problem that result
in often very different R formulations. Many may be RIGHT in a sense but some
clearly have tradeoffs or work only in limited circumstances or come from some
limited way of thinking. Note this message got to be a bit
These messages seem relevant:
>Error: package �CVXR’ could not be loaded
>Warning messages:
>1: In i.p(...) : installation of package �gmp’ had non-zero exit status
You need to make sure these packages are installed successfully before the
package you are interested will install.
Please don't
Do use "reply-all"... others may be able to respond more quickly or more
accurately than I. I have re-introduced the mailing list to this reply.
For example, if you read [1] it says there is a system requirement that the
completely separate gmp software be installed using your system software
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