[R] length of 'dimnames' [2] not equal to array extent- For Correlation Plot

[Shivi Bhatia]

Thank you Sarah, this is really helpful.

Have a nice day.

Regards, Shivi

On Sat, Mar 17, 2018 at 10:28 PM, Sarah Goslee <sarah.goslee at gmail.com>
wrote:

> That does clarify for me that you're missing a step: I didn't clearly
> follow your description at first.
>
> corrplot expects a correlation matrix, not your original data. You need to
> use cor() first.
>
> That's pretty clear in the documentation. See for instance the examples:
>
> data(mtcars)
> M <- cor(mtcars)
> corrplot(M)
>
> Sarah
>
> On Sat, Mar 17, 2018 at 12:00 PM Shivi Bhatia <shivipmp82 at gmail.com>
> wrote:
>
>> Hi Sarah,
>> Thank you for your help.
>>
>> I tried using CR1<-as.matrix(CR1) but gives error Error in corrplot(CR1,
>> method = "circle") : The matrix is not in [-1, 1]!. I am using a corrplot
>> library.
>>
>> Please find the reproducible example:
>> dput(head(CR1,10))
>> structure(c(26L, 46L, 39L, 38L, 47L, 59L, 56L, 61L, 43L, 60L,
>> 78L, 63L, 2L, 58L, 8L, 1L, 1L, 9L, 11L, 2L, 1037500L, 46747L,
>> 346300L, 672000L, 729000L, 470800L, 423000L, 72184L, 368022L,
>> 1037500L), .Dim = c(10L, 3L), .Dimnames = list(NULL, c("AGE",
>> "OLD_CAR_PURCHASE_YRS", "Total.Spend.With.Maruti")))
>>
>> Please advice if this would help.
>>
>> Thank you. Shivi
>>
>> On Sat, Mar 17, 2018 at 8:45 PM, Sarah Goslee <sarah.goslee at gmail.com>
>> wrote:
>>
>>> I'm assuming you are using the corrplot package.
>>>
>>> If so, your data object does need to be a matrix, not a data frame.
>>> Since it's already a data frame, your line of code:
>>>
>>> as.matrix(as.data.frame(CR1))
>>>
>>> doesn't need the as.data.frame function, but more importantly, you
>>> didn't assign the result to anything: as.matrix() does not work in
>>> place.
>>>
>>> CR1 <- as.matrix(CR1)
>>>
>>> Now try.
>>>
>>> If that doesn't work, then provide a reproducible example so we can
>>> offer further advice.
>>>
>>> Sarah
>>>
>>> On Sat, Mar 17, 2018 at 11:08 AM, Shivi Bhatia <shivipmp82 at gmail.com>
>>> wrote:
>>> > Created a new data set with 3 numeric variable to find correlation
>>> >
>>> > CR1<- mar%>%  as_data_frame%>%  select(AGE, OLD_CAR_PURCHASE_YRS,
>>> > Total.Spend.With.AA)
>>> >
>>> > had to convert it to a data frame, code:
>>> >
>>> > as.matrix(as.data.frame(CR1))
>>> >
>>> > Now i need to run a correlation plot for these 3 variables:
>>> >
>>> > corrplot(CR1, method = "circle")
>>> >
>>> > But i am getting this error:
>>> > Error in matrix(unlist(value, recursive = FALSE, use.names = FALSE),
>>> nrow =
>>> > nr, : length of 'dimnames' [2] not equal to array extent
>>> > Researched and found Correlation
>>> > <https://stackoverflow.com/questions/43362420/length-of-
>>> dimnames-2-not-equal-to-array-extent-when-using-corrplot-function>that
>>> > corrplot requires a matrix however the error is still the same.
>>> > Regards, Shivi
>>> >
>>> >         [[alternative HTML version deleted]]
>>> >
>>> > ______________________________________________
>>> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>>> > https://stat.ethz.ch/mailman/listinfo/r-help
>>> > PLEASE do read the posting guide http://www.R-project.org/
>>> posting-guide.html
>>> > and provide commented, minimal, self-contained, reproducible code.
>>>
>>>
>>>
>>> --
>>> Sarah Goslee
>>> http://www.functionaldiversity.org
>>>
>> --
> Sarah Goslee
> http://www.stringpage.com
> http://www.sarahgoslee.com
> http://www.functionaldiversity.org
>

	[[alternative HTML version deleted]]