Wolfgang Schwanghart

University of Postdam

Last seen: Today | 2007 이후 활성

연락

Professional Interests: GIS, Physical Geography, Hydrology, Geomorphology

Statistics

All

배지보기

Content Feed

해결됨

Create a cell array out of a struct
Create a cell array out of a (single) struct with the fieldname in the first column and the value in the second column: in: ...

6달 전

해결됨

Draw a '1' in a zero matrix!

6달 전

해결됨

Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

6달 전

해결됨

Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

6달 전

답변 있음
Plot line with points at given distance
Since you are working with TopoToolbox, you might want to use the function getlocation. If you have a STREAMobj S, then you can ...

6달 전 | 0

| 수락됨

답변 있음
Inverse distance weighting based on direction
Hi Christian, interesting question. First of all, if you follow the IDW-approach, you might save a lot of computing time using ...

6달 전 | 0

| 수락됨

제출됨

TopoToolbox
A MATLAB program for the analysis of digital elevation models

1년 이상 전 | 다운로드 수: 59 |

제출됨

subplotlabel
Label subplots in a composite figure

1년 이상 전 | 다운로드 수: 1 |

해결됨

Create an n-by-n null matrix and fill with ones certain positions
The positions will be indicated by a z-by-2 matrix. Each row in this z-by-2 matrix will have the row and column in which a 1 has...

1년 이상 전

해결됨

Symmetry of vector
Determine whether the vector is symmetric or not (vector could be even or odd in length). For example: x = [1 2 3 3 2 1] ...

2년 이하 전

해결됨

Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

2년 이하 전

질문

Fit Gaussian mixture model with weighted observations
Hi everyone, looking at the help of fitgmdist, I cannot see that there is the possibility to weight observations. Is there a rea...

2년 이상 전 | 답변 수: 3 | 0

3

답변

답변 있음
2D gaussian filter with a variable sigma
Hi Chad, below is some code that does the trick using nlfilter. To be more efficient, I created a look-up table with a finite s...

3년 이상 전 | 0

답변 있음
What makes a Toolbox a Toolbox, and how is it recognized by Matlab?
Hi Chad, the trick is to have a Contents.m-file in the main folder of your toolbox. In TopoToolbox, the file starts with T...

약 4년 전 | 0

제출됨

Non-crossing polynomial quantile regression
Non-crossing polynomial quantile regression

6년 이상 전 | 다운로드 수: 2 |

제출됨

Flow Accumulation (upslope area)
Flow accumulation algorithm that routes through flats

7년 이상 전 | 다운로드 수: 5 |

해결됨

Box!
Given a box, find the volume of the cube. With each side = a.

7년 이상 전

질문

Customized icons in workspace
Hi all, I have written a couple of MATLAB classes and, as icing on the cake, I'd like to have customized icons in the worksp...

8년 이상 전 | 답변 수: 0 | 1

0

답변

해결됨

index of n in magic(n)
let input=5; magic matrix 17 24 1 8 15 23 5 7 14 16 4 6 13 20 22 ...

8년 이상 전

해결됨

Order of things - 1
Let's assume you have a number of calculations to perform, that depend on each other. E.g. 'A' can be calculated, once the outco...

8년 이상 전

해결됨

Count decimal digits of a number
* Given an integer number you have to return the number of its digits. * For example 248 has 3 digits and 1589 has 4 digits ...

9년 이하 전

해결됨

Check if equal
Return true if all the elements of an nD array are equal, false otherwise.

9년 이하 전

해결됨

Add a row of zeros on top of a matrix
Given a matrix, insert a row of zeros as the top row.

9년 이하 전

해결됨

Too Many Zeros, Dump Them!
Sometimes when I create a matrix, I use this syntax: a = zeros(1000,1000); But when the function ends, I find that I don'...

9년 이하 전

해결됨

Enlarge array
Given an mxn numeric array (A) and a 1x2 vector (sz) indicating the dimensions [p q] to enlarge each element, return an (m*p)x(n...

9년 이하 전

해결됨

Pascal's pyramid
In Pascal's triangle each number is the sum of the two nearest numbers in the line above: 1 1 1 ...

9년 이하 전

해결됨

Create an index-powered vector
Given a input vector x, return y as index-powered vector as shown below. Example x = [2 3 6 9] then y should be [...

9년 이하 전

해결됨

Matrix to column conversion
Given a matrix of any size, convert it into a column vector. e.g A=[10 20 30; 40 50 60] then, B = [10; 40; ...

9년 이하 전

해결됨

Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
The given function returns the index of the maximum value in a given matrix. such as X=[4,3,4,5,9,12,0,5] Ans= 6 if maxim...

9년 이하 전

해결됨

Free passes for everyone!
_Simply return the name of the coolest numerical computation software ever_ *Extra reward* (get a _freepass_): As an addit...

약 9년 전

더로드

Wolfgang Schwanghart

University of Postdam

Statistics

MATLAB Answers

MATLAB Answers

Cody

Cody

File Exchange

File Exchange

File Exchange

File Exchange

File Exchange

File Exchange

MATLAB Answers

MATLAB Answers

Content Feed

3

0