[R] Question about Rfast colMins and colMaxs

[Stephen H. Dawson, DSL]

Oh, you are segmenting standard R from the rest of R.

Well, that part did not come across to me in your original reply. I am 
not clear on a standard versus non-standard list. I will look into this 
aspect and see what I can learn going forward.


Thanks,
*Stephen Dawson, DSL*
/Executive Strategy Consultant/
Business & Technology
+1 (865) 804-3454
http://www.shdawson.com <http://www.shdawson.com>


On 11/30/21 5:26 PM, Bert Gunter wrote:
> ... but Rfast is *not* a "standard" package, as the rest of the PG
> excerpt says. So contact the maintainer and ask him/her what they
> think the best practice should be for their package. As has been
> pointed out already, it appears to differ from the usual "read it in
> as a data frame" procedure.
>
> Bert
>
> On Tue, Nov 30, 2021 at 2:11 PM Stephen H. Dawson, DSL
> <service using shdawson.com> wrote:
>> Right, R Studio is not R.
>>
>> However, the Rfast package is part of R.
>>
>> https://cran.r-project.org/web/packages/Rfast/index.html
>>
>> So, rephrasing my question...
>> What is the best practice to bring a csv file into R so it can be
>> accessed by colMaxs and colMins, please?
>>
>> *Stephen Dawson, DSL*
>> /Executive Strategy Consultant/
>> Business & Technology
>> +1 (865) 804-3454
>> http://www.shdawson.com <http://www.shdawson.com>
>>
>>
>> On 11/30/21 3:19 PM, Bert Gunter wrote:
>>> RStudio is **not** R. In particular, the so-called TidyVerse consists
>>> of all *non*-standard contributed packages, about which the PG says:
>>>
>>> "For questions about functions in standard packages distributed with R
>>> (see the FAQ Add-on packages in R), ask questions on R-help.
>>> [The link is:
>>> https://cran.r-project.org/doc/FAQ/R-FAQ.html#Add-on-packages-in-R
>>> This gives the list of current _standard_ packages]
>>>
>>> If the question relates to a contributed package , e.g., one
>>> downloaded from CRAN, try contacting the package maintainer first. You
>>> can also use find("functionname") and
>>> packageDescription("packagename") to find this information. Only send
>>> such questions to R-help or R-devel if you get no reply or need
>>> further assistance. This applies to both requests for help and to bug
>>> reports."
>>>
>>> Note that RStudio maintains its own help resources at:
>>> https://community.rstudio.com/
>>> This is where questions about the TidyVerse, ggplot, etc. should be posted.
>>>
>>>
>>>
>>> Bert Gunter
>>>
>>> "The trouble with having an open mind is that people keep coming along
>>> and sticking things into it."
>>> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>>>
>>> On Tue, Nov 30, 2021 at 10:55 AM Stephen H. Dawson, DSL via R-help
>>> <r-help using r-project.org> wrote:
>>>> Hi,
>>>>
>>>>
>>>> I am working to understand the Rfast functions of colMins and colMaxs. I
>>>> worked through the example listed on page 54 of the PDF.
>>>>
>>>> https://cran.r-project.org/web/packages/Rfast/index.html
>>>>
>>>> https://cran.r-project.org/web/packages/Rfast/Rfast.pdf
>>>>
>>>> My data is in a CSV file. So, I bring it into R Studio using:
>>>> Data <- read.csv("./input/DataSet05.csv", header=T)
>>>>
>>>> However, I read the instructions listed on page 54 of the PDF saying I
>>>> need to bring data into R using a matrix. I think read.csv brings the
>>>> data in as a dataframe. I think colMins is failing because it is looking
>>>> for a matrix but finds a dataframe.
>>>>
>>>>    > colMaxs(Data)
>>>> Error in colMaxs(Data) :
>>>>      Not compatible with requested type: [type=list; target=double].
>>>>    > colMins(Data, na.rm = TRUE)
>>>> Error in colMins(Data, na.rm = TRUE) :
>>>>      unused argument (na.rm = TRUE)
>>>>    > colMins(Data, value = FALSE, parallel = FALSE)
>>>> Error in colMins(Data, value = FALSE, parallel = FALSE) :
>>>>      Not compatible with requested type: [type=list; target=double].
>>>>
>>>> QUESTION
>>>> What is the best practice to bring a csv file into R Studio so it can be
>>>> accessed by colMaxs and colMins, please?
>>>>
>>>>
>>>> Thanks,
>>>> --
>>>> *Stephen Dawson, DSL*
>>>> /Executive Strategy Consultant/
>>>> Business & Technology
>>>> +1 (865) 804-3454
>>>> http://www.shdawson.com <http://www.shdawson.com>
>>>>
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>>