Community Profile ### Universität Freiburg

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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 ...

26 días ago | 0

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...

27 días ago | 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

29 días ago | 0

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...

29 días ago | 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...

alrededor de 1 mes ago | 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...

alrededor de 2 meses ago | 0

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...

alrededor de 2 meses ago | 0

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...

alrededor de 2 meses ago | 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

alrededor de 2 meses ago | 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 ...

alrededor de 2 meses ago | 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...

3 meses ago | 0

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...

3 meses ago | 0

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...

3 meses ago | 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...

3 meses ago | 1

How do I plot points coming from a for loop without using vectors?
Hi, values on the x-axis are not equally spaced because on every interation you increase L by i, which itself is increased by 1...

3 meses ago | 0

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How to stackplot a table?
Hi Oliver, does this code produce the plot you need? load('example.mat', 'table') figure; nvar = size(table,2)-3; t = [tabl...

3 meses ago | 0

Submitted

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

uniqueCells
Implementation of unique for ND cell arrays of mixed type. Avoids num2str and provides switches for unique rows and to treat NaN...

How to read files from sub folders in sorted order?
Hi, one solution would be to convert the time suffix to numeric and sort the numbers: d = dir('Time*'); n = {d.name}; ...

alrededor de 3 años ago | 0

Solved

5th Time's a Charm
Write a function that will return the input value. However, your function must fail the first four times, only functioning prope...

más de 3 años ago

Solved

"Cody" * 5 == "CodyCodyCodyCodyCody"
*Alice*: What? *"Cody" * 5 == "CodyCodyCodyCodyCody"*? You've gotta be kidding me! *Bob*: No, I am serious! Python supports...

más de 3 años ago

Submitted

RNG-Indices-of-Randomness
Implementation of various indices of randomness as measures of RandomNumberGeneration performance; a task assessing executive fu... Solved

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

casi 4 años ago

Solved

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...

casi 4 años ago

Solved

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...

casi 4 años ago

Solved

The 5th Root
Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

alrededor de 4 años ago

Solved

Number of Even Elements in Fibonacci Sequence
Find how many even fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

alrededor de 4 años ago

Solved

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...

alrededor de 4 años ago