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Help Defining Variable Contained Within Summation Notation, and Using this Variable for Plot
Hello, you could use nested for loop. But i envision this running into an "Out of memory" problem sheerly based on the length of...

約5年前 | 0

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How to create a scalar set of values
Hello, using arrayfun could be more efficient: % Taking your vector, say "P" to compute real "v_real" using "arrayfun". "arrayf...

約5年前 | 0

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A problem with using generalized code
Hello, the problem stems from the value of your column index; "4". You should be indexing column "5" instead on line 4 of the la...

約5年前 | 1

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Multiple selection of an array
Hello, based on the indexing used in your question, i think something like this could do: % Assuming your matrix or vector to b...

約5年前 | 1

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Pre allocation in matlab
leng=length(v); % length of a vector pA=zeros(1,leng); % pre-allocation with zeros

約5年前 | 0

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Eliminate the table inside a cell, if any NaN exists inside that table.
Hello, cellfun should do nicely CL=cellfun(@(x) any(isfinite(x.precip)),NewC2LatLon); CSelect=NewC2LatLon(CL); % Final cell ar...

約5年前 | 1

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Box plots for Kruskal-Wallis
Hello, when the end point of a notch is lower than the 25th quartile of your data, that folding effect will occur. This effect i...

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Differentiation of the position vector.
Hello, you could make use of the symbolic math toolbox. The page below should get you started: https://mathworks.com/help/symbo...

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how to write a programme in matlab comparing USA states name with english alphabets, and give the unmatch letter Q as a output.. ?
you could use regexp. Refer to the link below: https://mathworks.com/help/matlab/ref/regexp.html

約5年前 | 0

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

約5年前

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

約5年前

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Select columns from a table and add them into another table
Hello, you don't need to use "groupsummary" or "vertcat" for this. Instead use; "addvars". I think this should do nicely: % Ta...

約5年前 | 1

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hello, how to make a program of aggregate blending in matlab?
Hello, this might require quite some work. But to get you started, you need to first import your gradation data for different ag...

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Calculating average and standard deviation for element correction factor from excel file
Hello, this should do nicely; % Assuming your spreadsheet file is in the current (working) Matlab folder optns=detectImportOpt...

約5年前 | 0

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Create new matrix with compine values
Hello, this should do nicely using a 3D-cell array: a = [0 0 1; 1 0 0; 1 0 1]; b = [1 0 1; 1 1 1;1 1 1]; c= [0 0 0 ; 1 0 0...

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Without the French accent please!
Suppress the French accent. Example 'Déjà présent' -> 'Deja present'

約5年前

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Ordinal numbers
Given an integer n, return the corresponding ordinal number as a character string. For example, ord(1)='1st' ord(2)=...

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Cell Counting: How Many Draws?
You are given a cell array containing information about a number of soccer games. Each cell contains one of the following: * ...

約5年前

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Guess Cipher
Guess the formula to transform strings as follows: 'Hello World!' --> 'Ifmmp Xpsme!' 'Can I help you?' --> 'Dbo J ifmq zpv...

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

約5年前

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Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

約5年前

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Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

約5年前

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Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

約5年前

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Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

約5年前

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Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

約5年前

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Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

約5年前

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Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

約5年前

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

約5年前

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Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

約5年前

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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

約5年前