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Questions tagged [variable-names]

256 questions
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Can loop variables be used multiple times in Verilog?

I have two arrays that look like this: reg [3:0] foo [31:0]; reg [7:0] bar [63:0]; They need to be initialized in an always block as follows: integer i; integer j; always @(posedge clk) begin if(reset) begin for(i=0; i<32; i=i+1) foo[i] <=…
Eli
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Creating variables with different numbers in their names through a function

I'm working on an assignment and I'd like to optimise my code a little. Basically what I'm doing is reading .xlsx files which have three sheets each. For context - One is "Insurance info", second is "New insurances", third is "resignations". The…
Qbk
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C++ variable names (can declare main as variable however same is not true for other functions name)

we are able to declare the main keyword as a variable name(without an error); however, the same is not true for other functions(i.e. user defined functions). Why is this? Thank you. (a code using a user defined function and the same variable name…
bumbum
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CSV file without column name & SAS Load file - Can I make use of the load file in R?

Is there a way I can make use of the SAS load file (see sample below) in R? DATA NEDS_2017_Core; INFILE "&path\NEDS_2017_Core.csv" dsd dlm=',' LRECL = 395; /* Define data element attributes */ ATTRIB AGE LENGTH=3 …
Quantitative72
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Create a variable with a value that is the name of another variable in R

In R, how can you create a variable that it's value is the name of another variable? For example: I have the vector groupers: groupers <- c("Epinephelus.costae", "Epinephelus.marginatus", "Mycteroperca.rubra", "Serranus.cabrilla",…
Shira S
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Sort a dataframe by columns with their names passed as vector

I need to sort multiple dataframes by a list of columns with non-alphabetic characters in their names. For a single dataset I'd use this famous solution with a workaround for blanks and stuff in the variable name: df_sorted = df[with(df,…
Dmitry D. Onishchenko
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Javascript array variable when named "name" showing unexpected result when storing strings

I am writing a very simple code for storing strings in an array and then splitting it but apparently the "variable name" seems to have an impact on the results. I have tried this on Google Chrome console as well as Microsoft edge. Results are the…
Asif
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variable names in C by Dennis Ritchie

I just started reading C by Dennis Ritchie and in the second chapter, I went through the page which I attached as an image where I didn't understand the first line of the second paragraph can someone help me with it.
Haricharan Reddy
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How to check if a string is a valid variable name in Python?

I would like to get some reusable code to correctly determine whether or not a string is a valid variable name in python3 (or the currently-running python would suffice). For example: If given the string group_찇籸딥햳㸙濮ᚨ麍ڵថ, the method that solves this…
AlanSE
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Create a variable with the name coming from a string variable

I have a class say class A and a string variable string name = "student". I want to create an instance of class A with the object name as student say class A student; But i don't know the name of object prior; I have the object name present in the…
LoneWolf97
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Threading the needle: finding the name of the actual argument corresponding to a formal of an outer function

The function strip() below tries to produce a brief report on the result of its operation via the tee pipe (%T>%). Because this function is in turn being handed to a wrapper function and then to purrr::pwalk, which will supply it with a bunch of…
andrewH
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What is the pCrawl variable referring to in Trie code?

Various sites like this one use a pCrawl variable to keep track of where a pointer is in the Trie data structure. I can see why the "crawl" part of the variable makes sense, if this means that the variable is "crawling" around the tree... but what…
JacobIRR
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JavaScript name variable

I'm using Mozilla Firefox if that changes anything. So I was developing a website, an accidentally set name variable to my name in some code, and then I fixed that. Shortly after, I fixed that, and name was still my name. I switched tabs on to a…
user10124491
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Defining dynamic variables in loop and combining content

I'm new to R and cannot figure out the following problem in dynamically assigning multiple values to variables in a double loop: I want to generate variables that differ in a) their names that are already stored in var_names b) put data from an…
da_the
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Android Studio problem: Unused Java instance variable marked as used

I am using Android Studio 3.2.1 Build #AI-181.5540.7.32.5056338 (linux version). Although this problem might also appear in Intellij Idea which I have not tested. The problem is whenever I name my instance variables by certain names (like…
NewStudent
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