[ad_1] It looks like you’re talking about a data frame, not a matrix. You can use names(Fires) to get a vector of column names, and use that to go from your variables to a column reference: X <- 1 Y <- 1 column.name <- paste0( X, Y ) Fires[ , column.name ] EDIT: in fact, … Read more
[ad_1] The idea is not that bad, the main errors are the mix-up of numerical digits and characters as shown in the comments. Also: if you use dynamic memory, than use dynamic memory. If you only want to use a fixed small amount you should use the stack instead, e.g.: c[100], but that came up … Read more
[ad_1] If you create a method or a variable and don’t use it anywhere, you are going to take this warning (Is not an error, is a warning message) For example (Same with methods): int a = 0; inb b = 1; //This variable is never used and cause a warning System.out.println(a); [ad_2] solved My … Read more
[ad_1] You didn’t copy the program correctly. This is the real program that reproduces the bug: #include <stdio.h> #define TRUE 1 #define FALSE 0 int function_returning_false() {return FALSE;} int main() { if (function_returning_false) { // note, no () printf(“function returned true\n”); } } So, it’s not calling the function – it is passing the function … Read more
[ad_1] Check this out may it will help you. (function(){ var ConvertBase = function (num) { return { from : function (baseFrom) { return { to : function (baseTo) { return parseInt(num, baseFrom).toString(baseTo); } }; } }; }; // binary to decimal ConvertBase.bin2dec = function (num) { return ConvertBase(num).from(2).to(10); }; // binary to hexadecimal ConvertBase.bin2hex … Read more
[ad_1] There is no problem in using multiple Script in html. How it is loaded is depending on which on the order it is added into the html. [ad_2] solved Javascript multiple script tag are allowed? [duplicate]
[ad_1] I need to split it to get only 1 and 6 and I only want whole number I want to ignore the floating numbers You can use String.prototype.split() with RegExp /\D|\d+\.\d+/ to split characters that are not digits, or digits followed by . character followed by digits to handle for example 2.456, Array.prototype.filter() with … Read more
[ad_1] You create instance of Encrypted method, but you set @code = 2, @string = “Hello” and @encrypted = []. So if you call @encrypted[0], ruby return nil. So you can modify your class like this: class Encrypt def initialize(code, string) @code, @string, @encrypted = code, string, [] end def to_byte @string.each_byte { |c| @encrypted … Read more
[ad_1] If I understand your question correctly, this should do the trick. arr = [] for z in np.arange(0, 0.5, 0.01): Q = a + z t = b + z # here I would like to store Q and t in an array arr.append([t,Q]) for item in arr: i = item[0] j = item[1] … Read more
[ad_1] Something like that? $i = 0; foreach($string as $menu){ $i++; if($i == 6){ break; } $menu_name = $menu[‘name’]; $menu_style = $menu[‘style’]; // i want to show total 5 menu names. if($menu_style == ‘magazine’ && $i <= 5){ // i have 5+ menus names (magazine style) // butt here i want to show just one … Read more
[ad_1] As you say, HTML + javascript. I would recommend you using at least jQuery as you can get and modify HTML elements easily but you can go with just HTML + css + js (it’s slightly harder). With jQuery you can listen to page events, like click. $(document).on(“click”, function() { // Change text attributes. … Read more
[ad_1] There is a problem in this line: double v[k] = log(log(sqrt(e[k]+1)+1)+1); in the first iteration k == 0 so you are trying to declare a zero sized array. I dont understand the code enough to tell you how to fix it, but a zero sized array is definitely not what you want in that … Read more
[ad_1] Since this code is littered with ternary operators, that seems to be what you are having the most trouble with. Basic syntax: condition ? a : b is the same as if (condition) { a } else { b } For weight: If you want to use kilo, just remove that whole line and … Read more
[ad_1] Option -1: Download the jquery file and store it in the directory of the project and add the script tag in your html file and then add second js file which you can write jquery <script src=”https://stackoverflow.com/questions/37921952/jquery.min.js”></script> <script src=”main.js”></script> //Here you can write your custom js with jquery loaded first Option -2 : First … Read more
[ad_1] Python strings are immutable. Any operation that appears to be changing a string’s length is actually returning a new string. Definately not your third option — a string can start out arbitrary long but can’t later change it’s length. Your option 1 sounds closest. You may find the Strings subsection of this web page … Read more