Gelöst


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

etwa 14 Jahre vor

Gelöst


Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

etwa 14 Jahre vor

Gelöst


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

etwa 14 Jahre vor

Gelöst


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...

etwa 14 Jahre vor

Gelöst


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...

etwa 14 Jahre vor

Gelöst


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. Example...

etwa 14 Jahre vor

Gelöst


Is my wife right?
Regardless of input, output the string 'yes'.

etwa 14 Jahre vor

Gelöst


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...

etwa 14 Jahre vor

Gelöst


Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

etwa 14 Jahre vor

Gelöst


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 ...

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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

etwa 14 Jahre vor

Gelöst


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

etwa 14 Jahre vor

Gelöst


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 ...

etwa 14 Jahre vor

Gelöst


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...

etwa 14 Jahre vor

Gelöst


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:...

etwa 14 Jahre vor

Beantwortet
how to efficiently find the indices?
Matlab has a nice function built in for this [B,I,J] = UNIQUE(...) also returns index vectors I and J such that B = A(I...

etwa 14 Jahre vor | 1

Beantwortet
eomday extension for wrapping month numbers
eomday([2012, 2013], {3:12, 1:3}) would work like this eomday([repmat(2012,1,10) repmat(2013,1,3)], [3:12 1:3]) Us...

etwa 14 Jahre vor | 1

| akzeptiert

Beantwortet
Matlab Database Toolbox
I don't see a join in the tool you can just write the SQL for it. Generate the M-file from a basic query then just add you join ...

etwa 14 Jahre vor | 0

Beantwortet
Error "Too many DATANAMES" for number series
It's definitely not too big. I bring in sets much larger than this all the time. I've never used the FTStool, but sometimes when...

etwa 14 Jahre vor | 1

| akzeptiert

Beantwortet
Ski Jump HELPPPP
I'm pretty sure you want to set up A as the system of linear equations like this A=[0 0 0 1; 1 1 1 1; 0 0 1 0; 3 2 1 0] ...

etwa 14 Jahre vor | 0

Beantwortet
deleting selective multiple rows from a data matrix
couple of problems B<2 & B>3 is always false you need to use a logical index to filter rows of A, B is not logical (all...

etwa 14 Jahre vor | 0

Beantwortet
vertcat double and cell
you have to convert so you have the same data types. I converted the double to a cell array. results.time=[1:256]'; resu...

etwa 14 Jahre vor | 0

Beantwortet
Matlab and Access
It would help to have the error message but if eid12 and dt are numbers (doubles) you have to convert them to strings. Also you ...

etwa 14 Jahre vor | 0

Frage


Emailing Images
Is there a way to make it so the image appears in the body of the email instead of an attachment? My image is a created from a ...

etwa 14 Jahre vor | 1 Antwort | 1

1

Antwort

Beantwortet
The technique of using "xlsread"
First you have to read in both numbers and txt [num txt]=xlsread('Book2.xlsx','Sheet1') then you can find the cell that ...

etwa 14 Jahre vor | 0

Beantwortet
Best Structure for a Trading Model based on Stock Indices
I prefer to use datasets for all of my data, especially if it is coming from Excel. http://www.mathworks.com/help/toolbox/stat...

mehr als 14 Jahre vor | 0

| akzeptiert

Beantwortet
given two dates (1/1/2012, 12/1/2012), how to have an array of months (1/1/2011,2/1/2011,...,12/1/2012)??
something like this maybe dv=datenum('1/1/2012'): datenum('12/1/2012'); dv=datevec(dv); dv=datenum(dv(dv(:,3)==1,:))...

mehr als 14 Jahre vor | 2

Beantwortet
Files on path are inaccessible (sometimes)
I get this error sometimes when I am working on a server and have drives mapped differently. I don't think this is your issue si...

etwa 15 Jahre vor | 0

Beantwortet
Image Processing: Array Problem - right justify?!
array(array==0)=NaN are you planning on using nanmean?

etwa 15 Jahre vor | 1

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