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Michael Haderlein


377 2012 이후 총 참여 횟수

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Why does my plot not display when I use a nested loop?
If you want to get this as line plot, you'll need all values of a and c to be in one array each. If the example you have posted ...

4년 이상 전 | 0

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Please help me how to describe a matrix in terms of smaller matrices.
Is it sure they overlap by one line/column? Then it's just A=[A11 A12(:,2:end);A21(2:end,:) A22(2:end,2:end)];

4년 이상 전 | 0

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How can I get the interpolated value of and array
>> doc interp1

4년 이상 전 | 0

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Selecting particular data range from matrix
No data is available and the code is not formatted. Please use the {}Code button for proper code formatting and please not only ...

4년 이상 전 | 0

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grouping values of 3 columns
Not clear what you mean: Do you want a numeric array or a string? If it's numeric, there's no 020 but only 20. If you want strin...

4년 이상 전 | 0

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Counting number of 1's in different bins
histc can have two output parameters: [temp,ind] = histc(A,[100,200,300,400]); Use the second one as input parameter for...

4년 이상 전 | 2

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why do we need the analytic gradient in fmincon?
The algorithm applied (by default interior-point-algorithm, find details <http://www.mathworks.com/help/optim/ug/constrained-non...

4년 이상 전 | 0

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Compare the contents to 2 subsystems within Simulink
I don't know what you mean with "subsystem", but if you have two variables with any kind of data (no matter if it's a struct or ...

4년 이상 전 | 0

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20 value from a normal distribution..
First, make sure that there are enough numbers available (with the values you use, this might not be a problem): lo=8;hi=3...

4년 이상 전 | 0

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How to turn data from text file into cell array?
What is rows 2-18? Under the assumption that we can ignore them, just use textscan and take them as headerlines: >> fid=fo...

4년 이상 전 | 0

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How can I save, close, and then reopen a Matlab file later so that I can resume at the same workspace when I closed the file?
What do you mean with closing the file? You can save the workspace with mat-files. save('matfile.mat') will save the current...

4년 이상 전 | 0

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MATRICES with customized sum for rows and columns
To get mat1, you can use the magic function: >> mat1=magic(4) mat1 = 16 2 3 13 5 1...

4년 이상 전 | 0

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Find the total number of values between alimits
you were close: >> A= [1,2,3,4,5,6,7,8,9,10,11]; >> sum(A>3 & A<10) ans = 6

4년 이상 전 | 1

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Concatenation of multiple variables into one variable
Assuming that the mat file contains _only_ these variables: data=cell2mat(struct2cell(load('filename.mat'))); meanvals=...

4년 이상 전 | 0

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how to eliminate the blank between subplot ?
Use the set command and the position property. Here is one example with zero spacing between the 2x2 axes and a 0.1 frame around...

4년 이상 전 | 1

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Renaming an array in a script
I see two options. 1) You _know_ the names in advance (because they are all the same for every Excel file you open). Then, y...

4년 이상 전 | 1

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simple question function file syntax
You can use anonymous functions: f=@(x) sqrt((9.81*x)/0.25).*tanh(sqrt((9.81*0.25)./x)*4); Then, f(xr) will return the ...

4년 이상 전 | 0

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Using ordered list for plotting charts
Your question is a bit unclear. Do you struggle with loading the data, with sorting the data or with plotting the data? Plus, wh...

4년 이상 전 | 0

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How to evaluate mean for column
You can use arrayfun: dx=zeros(100,1); dx(randi(100,10,1))=1; B=cumsum(dx); A=(1:100).^2; meanvals=arrayfun(@(x) me...

4년 이상 전 | 0

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sum of rand matrix equal to zero
What kind of random distribution do you want? Here I use normal distribution, for other distributions just replace randn by the ...

4년 이상 전 | 0

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how to remove repeated Xtick values
I don't like the idea of labeling x=1 with "1/24" too much, but if you want to do this: You also need to set the xtick property:...

4년 이상 전 | 1

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How to set LineStyle for matrix plotting?
It's not very intuitive, but that's the point (from <http://www.mathworks.com/help/matlab/creating_plots/defining-the-color-of-l...

4년 이상 전 | 0

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Good way to import data file
If the format doesn't change through the file (such that after 10 s, suddenly also data about whatever appears), you can simply ...

4년 이상 전 | 1

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Changing a row vector into a logical vector
If s is your stimulus array and t your time array and, let's say a value of s larger than 0.5 indicates this stimulus: s_l...

4년 이상 전 | 1

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change x axis, i have a plot of data from a headset. then i have 5 lines from a game, so i want 0-time from start(green) line till the end(red line), is it possible?
It's not quite clear what you want. 1) You want the x-axis to only go from the green line to the red line: xlim(Start,...

4년 이상 전 | 0

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Cut around the center of a matrix
If c indicates the range you want to remove and would be 3 in your example, just use B=A((end-c)/2+1:(end+c)/2,(end-c)/2+1...

4년 이상 전 | 0

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matrix loop how to extract data
What do you mean with "extract data"? You mean, instead of writing those 5 lines P1R=mean(P1); and so on, you want to do in a lo...

4년 이상 전 | 0

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Help with function main and writing cross product function
You have to decide if you want to name the output argument "w" or "result". If you change your second last line to w=[i j ...

4년 이상 전 | 0

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splitting large cell array into smaller cell arrays
If you really want to have the inside to be a struct, you can go with c=cellfun(@(x) cell2struct(mat2cell(x,3*ones(7,1),20...

4년 이상 전 | 0

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how to access cell array data with single for loop
You mean like for cnt=1:length(A) C=A{cnt}; D=B{cnt}; end Actually, there is no need for cell arrays here. In c...

4년 이상 전 | 0

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