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Questions tagged [names]

"names" (plural) is an attribute of some R objects in the R language

In the scientific software R for statistical computing and graphics, "names" is an attribute of some data objects, like vectors (including lists) and data frames. See ?names for details.

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3 Dimensional Array Names in R

In the 3 Dimensional array bellow : ar <- array(someData, c(5, 5, 5)); rownames(ar) <- ...; #to set up row names colnames(ar) <- ...; #to set up col names How can i set the third dimension names ?
RiskTech
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Why are Xs added to data frame variable names when using read.csv?

When I use the read.csv() function in R to load data, I often find that an X has been added to variable names. I think I just about always see it it in the first variable, but I could be wrong. At first, I thought R might be doing this because I…
mikebmassey
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Why the "mutable default argument fix" syntax is so ugly, asks python newbie

Now following my series of "python newbie questions" and based on another question. Prerogative Go to http://python.net/~goodger/projects/pycon/2007/idiomatic/handout.html#other-languages-have-variables and scroll down to "Default Parameter Values".…
cregox
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reading a csv file with repeated row names in R

I am trying to read a csv file with repeated row names but could not. The error message I am getting is Error in read.table(file = file, header = header, sep = sep, quote = quote, : duplicate 'row.names' are not allowed. The code I am using…
baz
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Avoid that space in column name is replaced with period (".") when using read.csv()

I am using R to do some data pre-processing, and here is the problem that I am faced with: I input the data using read.csv(filename,header=TRUE), and then the space in variable names became ".", for example, a variable named Full Code became…
zeno tsang
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Is there a way to get a vector with the name of all functions that one could use in R?

I would like to have a call that returns me a vector with the names of all function that I could call in the current R session. Does anybody know how to achieve this? (I would like to check user entered variables against this vector. We had some…
Henrik
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R Error: names() applied to a non-vector

I have a chunk of code which produces an error only the first time I run it. Strangely if I run it a second time I get no error (craziness definition?). Also the error does not show up always at the same position, I mean that if I add a few lines of…
Manfredo
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Preserve names when coercing vector from binary to `as.numeric`?

In R, when you coerce a vector from binary to numeric, the names are stripped away. There are a few possible solutions, which I've outlined before. It seems dangerous to rely on implicit conversion by adding 0 to all the values, and the sapply()…
TARehman
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Numbers as column names of data frames

Is there a reason why R won't allow me to have a number as the column name of my dataframe? Also noticed that if i do data.frame(XX) it adds an X to all the column headers that have numbers at the front.
Nathaniel Saxe
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Advantage of using a lambda:None function as a namespace?

I saw the following code: eris = lambda:None eris.jkcpp = np.einsum('iipq->ipq', eriaa[:ncore[0],:ncore[0],:,:]) eris.jc_PP = np.einsum('iipq->pq', eriab[:ncore[0],:ncore[0],:,:]) Can we define arbitrary attributes for a function defined by…
孙文趋
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maven : deploy artifact file name

Hi : Im finding that maven deploys by default change the file name to match the version+artifact id. For example Deploying a jar file, with artifact=A and version=V-0.1 will result in a jar file named AV-0.1.jar. Is there a way to change the…
jayunit100
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You can abbreviate list names? Why?

This got me pretty bad. You can abbreviate list names? I never noticed it before and I got totally screwed for like a day. Can someone explain what is happening here and why it could be more useful than it is terrible? And why its inconsistent…
enfascination
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Dataframes in a list; adding a new variable with name of dataframe

I have a list of dataframes which I eventually want to merge while maintaining a record of their original dataframe name or list index. This will allow me to subset etc across all the rows. To accomplish this I would like to add a new variable 'id'…
Look Left
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Extracting just a string element from a pandas dataframe

Okay, so say I have a pandas dataframe x, and I'm interested in extracting a value from it: > x.loc[bar==foo]['variable_im_interested_in'] Let's say that returns the following, of type pandas.core.series.Series: 24 Boss Name: ep_wb_ph_brand,…
Hillary Sanders
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Why is the code "foo::foo::foo::foob" compiling?

A co-worker accidentally wrote code like this: struct foo { foo() : baz(foobar) {} enum bar {foobar, fbar, foob}; bar baz; }; void f() { for( auto x : { foo::foobar, foo::fbar, foo:: …
sbi
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