Eric Tao

自 2018 起处于活动状态

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统计学

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Merge multi-row values to single row in table for classification training
Assume your original table is called 'data', and results will be stored in a new table called 'new', then run: new = table(...

6 years 前 | 0

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How do I run increments of numbers through a function?
Use MATLAB colon expression, and you don't need for-loop anymore. Run: a = [95:-0.1:35]'; you will get the result.

6 years 前 | 0

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join tables based on string in one cell in the other
You need to convert strings in foo.var1 to characters, assuming the 1st column name in foo and bar are both 'var1'. Run: ...

6 years 前 | 3

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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

6 years 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...

6 years 前

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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

6 years 前

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Add two numbers
Given a and b, return the sum a+b in c.

6 years 前

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

6 years 前

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

6 years 前

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

6 years 前

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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...

6 years 前

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

6 years 前

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

6 years 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:...

6 years 前

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concatenate cell
just type: b = {strjoin(a,'_')}; Then your b will be a cell as {'kkk_lll_xxx_jjj.xls'}

6 years 前 | 0