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Pass Full Array between view controllers in swift
Swift arrays are value types, and as such they are passed not by reference but by value, which means a copy is created when an array is passed to a function, assigned to a variable, etc. In order to pass an array (and more generally any value type) to a function by reference, you can use the inout modifier in the function declaration, and use the reference operator & when passing the argument

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sort two arrays accordingly in bash
If the array are global her is the right way function bubble_sort() { local max=${#xArray[@]} size=${#xArray[@]} while ((max > 0)) do local i=0 while ((i < max)) do if [ "$i" != "$(($size-1))" ] #array will not be out of bound then if [ ${xArray[$i]} > ${xArray[$((i + 1))]} ] then

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How do I access the not-the-first elements of an array in Swift?
No. extension Array { func skip(count:Int)->[T] {return [T](self[count..<self.count])} } https://github.com/mythz/swift-linq-examples/blob/master/src/LinqExamples/extensions.swift

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How to write to an array the output of an awk command in UNIX?
What I would do to have a bash array : bash_arr=( $(awk '{for(i=1;i<=NF;i++){if($i~/^A/){print $i}}}' file) ) echo "${bash_arr[@]}" AUS ARG And you don't even need awk in reality, bash is capable of doing regex : for word in $(<file); do [[ $word =~ ^A ]] && basharr+=( "$word" ); done

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Replace character on Shell string
You can use sed for this: $ r="_ _ _ _ _ _ _" $ pos=3 $ echo "$r" | sed "s/_/X/$pos" _ _ X _ _ _ _ $ pos=4 $ echo "$r" | sed "s/_/X/$pos" _ _ _ X _ _ _ By saying sed "s/_/X/N" you are replacing the Nth occurrence of _ with a X.

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Array initialization riddle with repeatedValue as a sequence, Swift
This syntax is not valid: Array<Int>(count: 100, repeatedValue:(for i in 0...99)) If you want to keep you array as let and initialise it with custom values you can do the following: let myArray: Array<Int> = { var myArray: Array<Int> = [] for i in 0...99 { myArray.append(i) } return myArray }() This means that myArray will have value of the result o

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Add variables to array from a number of structures
this should work if I understood your question correctly: varr = struct2cell(sctData); newarray = []; for ii = 1:length(varr) temp = varr{ii}; newarray = [newarray; temp(:,1:2)]; end

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Swift Dictionary: Get values as array
As of Swift 2.0, Dictionary’s values property now returns a LazyMapCollection instead of a LazyBidirectionalCollection. The Array type knows how to initialise itself using this abstract collection type: let colors = Array(colorsForColorSchemes.values) Swift's type inference already knows that these values are UIColor objects, so no type casting is required, which is nice!

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How to replace a value in array
Your statement (augmented with the missing FROM clause): SELECT array_replace(col1, 1, 100) FROM tbl WHERE id = 1; As commented by @mu, array_replace() was introduced with pg 9.3. I see 3 options for older versions: 1. intarray As long as ... we are dealing with integer arrays. elements are unique. and the order of elements is irrelevant. A simple and fast option would be to install the a

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VBA Run-time error 13 - type mismatch- price time series calc not working on array
For i = 2 To UBound(Ticker1) If Val(Ticker1(i - 1, 1)) <> 0 Then PctChg1(i, 1) = Ticker1(i, 1) / Ticker1(i - 1, 1) - 1 Next i This works, but I still have not established why i-1 generates errors when I start the calculation on data point i=2.

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Split Pandas Dataframe into separate pieces based on column values
Producing the separate dataframes is easy enough. How would you want to store them? One way would be in a nested dict where the outer keys are the s_id and the inner keys are the c_id and the inner values are the data. That you can do with a fairly long but straightforward dict comprehension: DF_dict = {s_id : {c_id : df[(df.s_id == s_id) & (df.c_id == c_id)] for c_id in df[df.s_id

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Explanation of splat
Splats require that you do know the parameters; the benefit is rather than passing value/variables for each of the parameters you can pass a single variable which has properties representing each of the required parameters. The primary benefits are less typing and improved readability. e.g. (powershell) $credentials = get-credential $x = Test-Credential -username $credentials.Username -password

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How to compose a 3d array from 3 1d arrays in MATLAB?
It's possible the variable abc already exists in your workspace, which would give you the error you're seeing. A better way of creating your 3D matrix is to use the cat command: abc = cat(3,a,b,c); cat concatenates the specified variables along the specified dimension (in this case the 3rd dimension).

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How can I efficiently check whether two arrays reduce to the same set?
If the arrays are sorted, then comparing their contents is pretty efficient (basically scanning through them). Update: Start at the low end of each array, and repeat the following: If the two current elements are different, or one array is exhausted before the other, stop (the arrays are different). Otherwise, skip over all copies of the current value in both arrays. Once you have exhausted bot

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Possible combinations calculator
The number of combination of 10 places with 26*2+10=62 characters per each will give 62^10 different strings. If you want to store them in a memory.. well good luck. If you want to process them one by one..good luck as well. But generally the method is recursive (pseudocode: perms(n, chars) while (characters remaining in chars) firstChar = getNextCharacterFrom(chars) output <-

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Distinguish 'inf' and '-inf'
You can detect inf using isinf(), and you can detect sign using sign(). Combine the two: newc = c; inf_filter = isinf(newc); newc(inf_filter) = 1e6 * sign(newc(inf_filter));

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Haxe - Error #1006: insert is not a function
It sounds like you didn't call haxe.initSwc(mc); before running your code. It is required as stated at http://old.haxe.org/manual/swc.

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What is different between array variable address and simple variable address?
It's so simple.. For variables the compiler allocates not consecutive values in the memory... For arrays the compiler allocates consecutive values in the memory... So in c++ you can access to the all array elements by pointer by increasing the memory location for the pointer by one!!! Please accept the answer if it's helpful!!

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Calling for sequential variables in Matlab loops
definitely creating a 3D array is the best solution. Then instead of looping, which is generally slow in MATLAB and other interpreted languages, you can use mtimesx function if you deal with matrix-matrix or -vector multiplication, or just use bsxfun for elementwise multiplication X(:,:,1) = X_1; X(:,:,2) = X_2; %// and so on constants = permute(1:10, [3,1,2]) Y = bsxfun(@times, X, constants);

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Excel error when multiplying two arrays
You need to first "dereference" the returns from OFFSET (which can equally return cell references as well as cell values, depending on the construction involved), for which N is an appropriate function here, i.e.: =MMULT(TRANSPOSE(IF(RIGHT(E3:E11,2)="93",1,0)),N(OFFSET(B2,MATCH(D3:D11,A3:A11,0),0))) You can also achieve identical results using the shorter, non-volatile and non-array: =SUMPRODU

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Removing a 'dead' thing from an array
Dont remove it in the table, just let it be. Lua tables are designed to handle indefinite values as long as your device can carry the load. just do deadBarricade:removeSelf() to clear some memory. I expect some lag time when you shift elements from table everytime a barricade is removed. What if lots of barricade is removed at the same time? I dont know what error it might end up but I'm anticipat

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Replace surrounding elements
With the image processing toolbox, this is quite straightforward (if you don't have the image processing toolbox, you can use conv2 instead of imdilate). targetValue = 800; targetDistribution = mapArray == targetValue; valuesToReplaceLocation = imdilate(targetDistribution, [0 1 0;1 1 1;0 1 0]) & ~targetDistribution; mapArray(valuesToReplaceLocation) = 700; edit To pad the array, you can

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Crystal Reports - Standard Deviation of data from 2 sources
ok by seeing your question and formula looks like you are not using your formula coorectly: in sub report 1 use your formula and place in the group or detail whereever you are placing the field so that every data will be added up whileprintingrecords; shared StringVar Array IncSurvey1; Incsurvey1 :=Incsurvey1 + totext({usr_incidentsurveyquestion1.ubr_rank}); 1 If the whole string is coming a

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Rust: Declare array with constant expression
Your SIZE definition is not legal; it’s just that the errors in it occur later than the error on the array construction. If you change [0u8, ..SIZE] to [0u8, ..6] just so that that part works, you find the problems with the SIZE declaration: <anon>:7:24: 7:53 error: function calls in constants are limited to struct and enum constructors [E0015] <anon>:7 const SIZE: uint = size_o

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Finding same value in rows & columns of a 2D array
If you want to work within the same column then you should do something like this (also sorry this is in C# I don't know what language you are working in): int currentCol = 0; foreach (var item in myMultiArray) { int currentColValue = item[currentCol]; } This works because myArray is a array of arrays thus to select a specific column can easily be picked out by just allowing the foreach to

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J and L-systems
You can use complex values in the left argument of # to expand an array without boxing. For this particular L-system, I'd probably skip the gerunds and use a temporary substitution: to =: 2 : 'n (I.m=y) } y' NB. replace n with m in y ins =: 2 : '(1 j. m=y) #!.n y' NB. insert n after each m in y L =: [: 'c'to'A' [: 'A'ins'B' [: 'B'to'c' ] Then: L^:(<6) 'A' A AB ABA ABAAB ABA

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F# match the beginning of an array
If you want to use matching you could create active pattern (http://msdn.microsoft.com/en-us/library/dd233248.aspx): let (|Head1|_|) (buffer:byte[]) = if(buffer.[0] (* add condition here *)) then Some buffer.[0] else None let (|Head2|_|) (buffer:byte[]) = if(buffer.[1] < (byte)128) then Some buffer.[1] else None let extractFrame (buffer:byte[]) = match buffer with |

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Deep Query using MongoDB
First you should aggregate your data and then find your criteria below aggregation will help mongo document structure as db.item.findOne() { "_id" : ObjectId("5469f1cbeb2d08494b4bff1e"), "request" : { "item" : [ NumberLong(392279374), NumberLong(392238484), NumberLong(392222298), NumberLong(392154783), NumberLong(392154

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No. of paths in integer array
My recommendation: use dynamic programming. If this key word is sufficient and you want the challenge to find a possible solution on your own, dont read any further! Here a possible DP-algorithm on the example input {3,1,2,7,5,6}. It will be your job to adjust on the general problem. create array sol length 6 with just zeros in it. the array will hold the number of ways. sol[5] = 1; for (i =

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how to declare output array in verilog?
Array style ports are only supported in SystemVerilog, if you can use that you should probably stop using the Verilog-95 style port declaration. Verilog 2001 and above port declaration, with SystemVerilog multi dimension ports module array( input clk, input reset, input [7:0] A [3:0], input [7:0] B [3:0], output reg [7:0] sum[3:0] ); Verilog vs

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Creating a one Column Array from Meshgrid Matlab
Is it not just: M = [X(:), Y(:), Z1(:)] Although to get technically the same result, you're counting along the third dimension first where as Matlab and the (:) technique are column major i.e. go along dimension 1 first so you need to reorder your dimensions so use permute and either (:) or reshape. With reshape you can neaten things up by using an anonymous function: columize = @(A)reshape(pe

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Fortran runtime error: Index '645778864' of dimension 1 of array 'tstar' above upper bound of 24
You have never set row, so it contains some arbitrary value, in your case 645778864. From your code I read that tstar is of length 24, hence the error. You should specify row e.g. as a dummy argument to your subroutine.

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Why doesn't JSON have associative arrays?
Why doesn't JSON have associative arrays? JSON doesn't have associative arrays in the PHP sense (e.g., ordered maps), but it certainly has key/value maps. They're called "objects." I'm wondering on a technical level why this decision might have been made for JSON. Crockford designed JSON to be a subset of JavaScript's object initialiser syntax. JavaScript doesn't have associative arrays

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How do I use array - bash
It's not at all clear what you are asking, but I guess this could at least help nudge you in the right direction. array=("FACEBOOK" "TWITTER" "INSTAGRAM") for var in "${ARRAY[@]}"; do last="$(tail -n +1 logfile.txt | awk '$9 ~"'"$var"'"' | tail -n 1)" : done The whole thing makes more sense as a pure Awk script, though. awk 'BEGIN { a[1] = "FACEBOOK"; a[2] = "TWITTER"; a[3] = "INSTAGRA

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vba transpose single row to multiple rows in an array
line here is a 2-d array, so you need to specify the dimension when using LBound or UBound, and you need both indexes when accessing a value: line = WorksheetFunction.Transpose(Split("row1,row2,row3", ",")) Debug.Print LBound(line, 1), UBound(line, 1) '1,3 Debug.Print LBound(line, 2), UBound(line, 2) '1,1 For ctr = LBound(line, 1) To UBound(line, 1) Debug.Print line(ctr, 1) Next ctr

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Convert string to array in Mongodb?
Much easier than I thought. Just use JavaScript split function. boom! db.temp.find().snapshot().forEach( function (el) { el.phonemes = el.phoneme.split(' '); db.temp.save(el); });

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get position of 2D array of JLabels
Just figured it out! I'll post here just encase someone else would like to know. I created 3 other variables in the class: private static Object source; private static int currentX, currentY; then the current MouseListener, where it is now, I added the following: for ( int i = 0; i < game.getXSize(); i++) { for (int j = 0; j < game.getYSize(); j++) { gamegr

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How to get array list size in java jsp?
Use fn:length function. Declare fn namespace on the begining of the JSP file <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> Later in the code ${fn:length(collection)}

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Bash: saving ls in an array -> receiving only small letters
You are using declare -l which by definition converts it to lowercase. As per help declare: -l to convert NAMEs to lower case on assignment Just use this to create array without using ls: declare -a content=("$currentDir"/*)

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