Wolfgang Schwanghart
University of Postdam
Professional Interests: GIS, Physical Geography, Hydrology, Geomorphology
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MEDIA DE ME GUSTA
10 of your answers have been accepted
Awarded to Wolfgang Schwanghart on 21 Feb 2022
Contribute at least one answer each month for 6 consecutive months
Awarded to Wolfgang Schwanghart on 20 Jul 2017
Like a problem or solution
Awarded to Wolfgang Schwanghart on 02 Mar 2022
Obtain 50 solvers for a problem you have created
Awarded to Wolfgang Schwanghart on 30 Dec 2020
Have 3 submissions connected to GitHub
Awarded to Wolfgang Schwanghart on 10 Jan 2021
Your submissions were downloaded 250 or more times in a month
Awarded to Wolfgang Schwanghart on 01 Nov 2019
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Publish your first review
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Your submissions received 25 five star ratings
Awarded to Wolfgang Schwanghart on 09 Oct 2019
Publish your first submission
Awarded to Wolfgang Schwanghart on 09 Oct 2019
Accept 1 answer given by other contributors
Awarded to Wolfgang Schwanghart on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to Wolfgang Schwanghart on 20 Jul 2017
Content Feed
Pregunta
Does imread read subsets from cloud-optimized geotiffs
Hi, cloud-optimized geotiff (COG) is a format to work with spatial raster data in the cloud (https://www.cogeo.org/). I am curr...
más de 1 año hace | 1 respuesta | 0
1
respuestaResuelto
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: ...
alrededor de 2 años hace
Resuelto
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 ...
alrededor de 2 años hace
Resuelto
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...
alrededor de 2 años hace
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 ...
alrededor de 2 años hace | 0
| aceptada
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 ...
alrededor de 2 años hace | 0
| aceptada
Enviada
TopoToolbox
A MATLAB program for the analysis of digital elevation models
casi 3 años hace | 121 descargas |
Resuelto
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...
más de 3 años hace
Resuelto
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] ...
más de 3 años hace
Resuelto
Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.
más de 3 años hace
Pregunta
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...
más de 4 años hace | 3 respuestas | 0
3
respuestas2D 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...
alrededor de 5 años hace | 0
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...
más de 5 años hace | 0
Enviada
Non-crossing polynomial quantile regression
Non-crossing polynomial quantile regression
alrededor de 8 años hace | 1 descarga |
Enviada
Flow Accumulation (upslope area)
Flow accumulation algorithm that routes through flats
alrededor de 9 años hace | 3 descargas |
Pregunta
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...
alrededor de 10 años hace | 0 respuestas | 1
0
respuestasResuelto
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 ...
alrededor de 10 años hace
Resuelto
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...
alrededor de 10 años hace
Resuelto
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 ...
más de 10 años hace
Resuelto
Check if equal
Return true if all the elements of an nD array are equal, false otherwise.
más de 10 años hace
Resuelto
Add a row of zeros on top of a matrix
Given a matrix, insert a row of zeros as the top row.
más de 10 años hace
Resuelto
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'...
más de 10 años hace
Resuelto
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...
más de 10 años hace
Resuelto
Pascal's pyramid
In Pascal's triangle each number is the sum of the two nearest numbers in the line above: 1 1 1 ...
más de 10 años hace
Resuelto
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 [...
más de 10 años hace
Resuelto
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; ...
más de 10 años hace
Resuelto
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...
más de 10 años hace
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