Konrad

Universität Freiburg

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How to subtract?
*&plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn* * Imagine you need to subtract one...

17 jours il y a

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I need to calculate the distance matrix between these locations in ev charging stations placement
Hi, let's say you have 10 2d coordinates of charging stations pos = rand(10,2); Then one efficient way of computing the dista...

12 mois il y a | 1

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Interpolating the indexes of values in a Vector
Hi, use interp1(): a = [2 4 6 8 10 12 14 16]; b = [6, 5, 4.5, 14.3]; interp1(a,1:numel(a),b,'linear') % 'linear' is also the...

environ un an il y a | 0

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How to save and load all the states of checkboxes and etc
Hi Ron, here is something I recently used in an App Designer GUI: The App needs a property 'config' and the following method...

environ 2 ans il y a | 0

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zipToolsPy
provides basic tools to read content from zip files

plus de 2 ans il y a | 3 téléchargements |

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How to populate a new vector by extracting only certain elements from another vector?
Hi Loren, if understood your question correctly, this should do what you want: load('reticolo2D.mat'); [Xpix, Ypix] = meshgri...

plus de 2 ans il y a | 0

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How to filter an entire dataset of ecg signals
Hi basically, you already described what to do: use load to import the data use designfilt to get filter parameters --- EDIT:...

plus de 2 ans il y a | 0

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View and Commit Changes dialog is blank
Hi I had the same problem with 2020b (win10) when using 2 displays with the main matlab windows moved to the secondary displa...

plus de 2 ans il y a | 0

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reading multiple text file from two different folders using nested for loop
Hi Salma It depends on what exactly you want to do with the data in the text files, but reading the file line by line seems to ...

plus de 2 ans il y a | 0

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Getting camera viewing data in real time
Hi, you can link the Camera-properties of the axes: figure; ah(1) = axes; figure; ah(2) = axes; plot3(ah(1),rand(10,1),rand(...

plus de 2 ans il y a | 1

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Randomly generate a vector containing integers. Extract items from odd positions using a single command line
Hi Dacian, indexing an expression (e.g. randi(100,10,1)(1:2:9)) is not possible in Matlab. Here is a workaround using groupsum...

plus de 2 ans il y a | 0

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PyColormap4Matlab
Simple Matlab and python script that import colormaps from matplotlib into Matlab.

presque 3 ans il y a | 40 téléchargements |

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How to open .hdr files (paired with zipped .img files)
Hi David, hdrread is not for radiological images but for high dynamic range images. You are dealing with the nifti file format...

presque 3 ans il y a | 0

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find the average pixel value of matrix of images
Hi Michael, allImages{i} = ... creates a cell-array containing the images. If your images are all grayscale and of the same si...

presque 3 ans il y a | 0

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How to call python Script in specified environment in Matlab?
Hi, please see this answer by Walter. I think pyenv() affects only python calls using the py.-prefix. But calling python via s...

environ 3 ans il y a | 1

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How to recenter spatial data?
hi, maybe I didn't get it, but why not just add 180? lonW = lon + 180;

environ 3 ans il y a | 0

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Precision of numbers problem (I think)
Hi Phillip, yes, it has to do with precision. ismember(phys_diffs,new_data(:,2)) % ans = % 1×7 logical array % 1 0 ...

environ 3 ans il y a | 0

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Mean and median at each interval
Hi data = readtable('Data.xlsx'); % read data data = data(~ismember(data.Volume,[0 1]),:); % exclude rows where volume=0 or vo...

environ 3 ans il y a | 0

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Auto update row index to match the variable length
Hi you can use b(1:numel(a),k) = a if k is scalar. Best, K

environ 3 ans il y a | 0

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Wie kann ich einen unbekannten String in einem Array finden? | finding an unknown string in an string array
Hi Patrick wenn ich richtig verstehe möchtest Du alle strings im array finden die mit * anfangen?! Das kannst Du so machen: st...

environ 3 ans il y a | 0

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String to number from array
Hi Nicle you need str2double() (or str2num()), not double(). double() gives you the UTF(?) code corresponding to the input st...

environ 3 ans il y a | 1

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Why am I getting wrong outputs with this MATLAB code?
Hi, i've rewritten the code without all the hard-coded indices, which I couldn't make sense of and which made your code very ha...

environ 3 ans il y a | 0

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enter a string of characters and numbers, add and return the sum of the numbers in matlab, for example: 'there are two blue birds and 4 red birds on the branch'--> return 6
Hi if you only need to handle numeric type, I'd recommend regular expressions: strng = ' 2 blue birds and 4 red birds'; res_s...

environ 3 ans il y a | 0

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Get values of the particular line from surf plot
Hi Ramesh, the contour3() function returns the contour matrix (see help) containing x- and y-coordinates of the contour. You ca...

environ 3 ans il y a | 1

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Calculate mean of matrix for specific interval
Hi Pelle, you need to index your variable DEM correctly: DEM_mean2 = mean(DEM(11:110,:)); Best, Konrad

environ 3 ans il y a | 1

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Animation video from data points, giving error below
Hi Muhammad, it seems that the video you are trying to create is too large to fit into memory. You can either run the code on ...

environ 3 ans il y a | 1

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could someone please tell me why my code returns complex answers while it is about room temperature ?
Hi, One quick guess: in your equation (eqn(number_of_nodes) = ...) you are raising to the power of .24, which means you are ta...

plus de 3 ans il y a | 0

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Help reorganizing data in a table
Hi Andrew, I think unstack() is what you're looking for: T=readtable('example_sheet.xlsx'); uT = unstack(T,{'Duration' 'Ratin...

plus de 3 ans il y a | 0

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Is it possible to extract 2 separated sections from the same table?
Hi Ruth, you can create indices into rawdata for your subjects and pilots programmatically like this: filename='RES_IAS (1).xl...

plus de 3 ans il y a | 0

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3D bar graph of Z with data in X Y Z array
Hi, provided that x and y are always positive integers, this may be a good start: tab = readtable('XYZ_Data.txt'); zarray = z...

plus de 3 ans il y a | 1

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Konrad

Universität Freiburg

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