Answered
How to add x-axis in the bottom or in the top of a figure?
Indeed, why after 30 years TMW hasn't built parallel universe for it is simply incomprehensible, I agree. It isn't all that ha...

7 years ago | 2

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Answered
How can i determine last infection point of a vector?
For the type of figure as shown, simple difference will work... >> d=[0 diff(A)]; >> A(d>4) ans = 173 >> where the '4'...

7 years ago | 1

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i need to delete a zero from a single row 10 column vector
As we've covered the other cases pretty thoroughly... For the specific input vector OP showed where it is almost certain it is ...

7 years ago | 0

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fplot command what is the default resolution ?
clear x f=@(x) 3*exp(-x).*sin(x); fplot(f,[0 8],'b') will produce the same plot -- fplot doesn't use your x array at all; it ...

7 years ago | 0

Answered
How to fix the ticklabels - time series analysis?
Clearly, the ticklabels you wrote are (1:5000)/20. The first label is 0.05 --> 1/20, the second 0.10 --> 2/20, etc., etc., ......

7 years ago | 1

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How can i plot raw eeg data
You have to load the library first...see the example code in the documenation for checking...use your wanted library name, path ...

7 years ago | 0

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How to extract the data lines from a large text file which contains combined numeric lines and text lines
Basic outline is as follows... fid=fopen('OneLineData.dat'); data=[]; l=fgetl(fid); while ~feof(fid) if contains(l,'SOFM ...

7 years ago | 0

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Answered
How to read mixed delimited data from a text file?
If the file is tab-delimited, the spaces won't matter... data=dlmread(fullfile('yourdirectory','yourfile.txt'),'\t'); % read t...

7 years ago | 0

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How can I erase Sheet1 Sheet2 and Sheet3 in excel file using writetable function in matlab?
Modifying workbook properties isn't what writetable does--it just writes to a given sheet, creating one of that name if it doesn...

7 years ago | 0

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am trying to find the first and second derivates of a set of data points I've imported
That's essentially trivial file that data=csvread('data_10.csv'); data(:,2)=[nan;diff(data(:,1))]; % first difference...

7 years ago | 0

Answered
Difference between readmatrix() and readtable()
It appears readmatrix is limited to returning one type of data in the output array as the 'OutputType' named parameter is limite...

7 years ago | 2

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Answered
Function handle not rechecking if statement
tf_f = @(T,Y) isempty(p_f(T,Y)); if tf_f(T,Y) == 1 && bottom_f(Y) > p21top_f(T) elseif tf_f(T,Y) == 1 && top_f(Y) < p21top_f(...

7 years ago | 0

Answered
limits are too large
K>> format short K>> sum(X(:)>1E100)/numel(X) ans = 0.8499 K>> sum(X(:)>1E200)/numel(X) ans = 0.7848 K>> sum(X(:)...

7 years ago | 0

Question

regexrep for the neophyte
How to write expression to find and convert financial strings written with comma separator to be able to parse numerically? Exa...

7 years ago | 1 answer | 0

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answer

Question

Brain freeze re: grouping and recombination
Have two files of correlated data via a categorical variable -- in the first, the name field has been normalized such that can f...

7 years ago | 0 answers | 0

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Answered
while/for loop
"know i have to use a for or while loop..." Not with Matlab, no! Use Logical indexing (link) as illustrated...

7 years ago | 0

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Reading a csv file
You started off well w/ the readtable route...but, once you've got the table, then use the variables there, don't create new one...

7 years ago | 1

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computing second derivative from txt/csv file based on existing excel algorithm
Here's perfect example why Matlab excels over Excel... :) txyz=importdata('B0264_dollyo_air_P_T01 rtoe.txt',',',8); % read the...

7 years ago | 0

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Answered
How can I save a word e.g. 'apple' in a text file, without matlab separating every letter with a comma?
You undoubtedly use csvwrite or similar to write a character array -- internally a char() array is just that--an array of number...

7 years ago | 1

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Answered
how to add a matrix element in a fzero function
As you wrote it, the function is the literal text including the argument so nothing ever gets substituted for dynamically--one w...

7 years ago | 0

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Answered
How to find intersection point of two curves, when the intersection point is not there in data sets?
Both intersection sections appear to be straight lines; fit them and use fzero to find the point bblue=polyfit(xblue,yblue,1); ...

7 years ago | 0

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Answered
Polynomial 2nd degree
Higher order polynomials aren't going to help here...the following code generated the figure: for i=3:9 subplot(4,2,i-2); ...

7 years ago | 0

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Answered
code for computing the formular
fnP=@(a,i) (sum(a(i)>a(1:i))+0.5*sum(a(i)==a(1:i)))/i; >> for i=2:numel(Si),fnP(Si,i),end ans = 0.75 ans = ...

7 years ago | 1

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Answered
How to change values of x axis from numbers to dates
x = -10:0.1:10; y = sin(x); hF=figure; % keep handle to figure plot(x,y) hAx(1)=gca; ...

7 years ago | 1

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Answered
Correlating Two Arrays Using Correcoef
There's at least one NaN in the second variable...you don't give any information about which is which. >> spd=5*rand(500,1);tlt...

7 years ago | 0

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Answered
Polynomial 2nd degree
Taking a shot that the presumption earlier is the correct one-- xy=xlsread('ML.xlsx','sheet2'); % read the data into array ...

7 years ago | 0

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Writing first and last line of each cell
Just have to handle the special case outside the loop... xx=zeros(length(xxMM)+1,6); xx(1,:)=xxMM{1,:}(1,:); for i=1:length(x...

7 years ago | 0

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Answered
Plotting graph of negative values of array in integral2 with 3 variables
The functional is invariant upon the the loop; remove the definition from inside the loop Use meaningful name for the degrees a...

7 years ago | 1

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Finding pythagoras triples when only c is known
Somewhat more rudimentary would be UP=fix(sqrt(Csq-1)); % can't be bigger ignoring degenerate case of (sqrt(Csq^2),0) for i=1:...

7 years ago | 1

Answered
Plot A Graph With Asymptotic Behavior
ymaxCX = max(max(CX), limCSss); yminCX = min(min(CX), limCSss); Just getting an overall min/max value of the data in vector C...

7 years ago | 0