Answered
plotting live data from a sensor
You are plotting only one point at a time and without having executed a hold on instruction, each call to plot creates a new lin...

6 years ago | 0

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Answered
How can I augment a toolbox to improve its capabilities?
Don't have the TB in Q? so can't go look to see, but if it is an m-file, there are two ways -- you can just edit the copy in pla...

6 years ago | 0

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making a vector of cells
Probably good choice would be to convert the country string/column in the table into a categorical variable; makes for looking f...

6 years ago | 1

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Answered
XLSread - multiple sheets
xlsread has been deprecated; use readcell, readmatrix, readtable instead depending on how you want the data returned and the con...

6 years ago | 1

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How can i fix this error?
NB the following ouput: Input data successfully read. Time Series data divided to 80% Train data and 20% Test data Time Serie...

6 years ago | 1

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How to read a .txt file in matlab ?
The file is irregular -- there are 9 elements in first record and only eight (8) in second. Besides that, they're inconsistent ...

6 years ago | 1

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Answered
split wav file based on txt file (two vectors - start time and duration)
That only would take basic math operations to turn the start times and durations into indices into the the .wav file based on th...

6 years ago | 1

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How can i multiply every row to row values?
>> A=reshape(1:9,3,[]) A = 1.00 4.00 7.00 2.00 5.00 8.00 3...

6 years ago | 0

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Answered
How can I calculate Kurtosis of Sound data?
Kin=arrayfun(@(i1,i2)kurtosis(X(i1:i2)),iStart,iEnd); where X are your data and the two indexing arrays above for the "in group...

6 years ago | 0

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Plotting data from struct
Couple ways of many... XY=reshape([pop.Cost],2,[]).'; plot(XY(:,1),XY(:,2)) or tpop=struct2table(pop); plot(tpop.Cost(:,1),...

6 years ago | 2

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Answered
How to create code that runs on all columns?
"I have a data set of 10583x3352 single ... I need to averge every 167 rows into 1 row for every column." N=167; ...

6 years ago | 1

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Answered
Creating new vectors containing values based on for loop outcome.
vals=interp1(a,a,b,'nearest','extrap'); For above a,b: >> vals vals = 3520.00 7650.00 7650.00 1250....

6 years ago | 0

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Answered
Normalization of Power Spectral Density
It's to make the output amplitude consistent regardless of the frequency resolution of the measurement. See https://community.s...

6 years ago | 4

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Answered
How can I correctly use the parenthesis and write equations
Pd=Pc*((1+(k-1)/2*ac^2*Vpr^2)^(k/(K-1))-1); Which inputs might be vectors, if any, would determine where and if need dot operat...

6 years ago | 0

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How do I make a histogram using value - count pairs?
histogram('categories',categorical(M(:,1)),'bincounts',M(:,2)) to match the number of elements in x,y. Otherwise, have to ...

6 years ago | 2

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Answered
Changing the name of the sheet in excel during a loop for
Each workbook just has one sheet that is to be named with the trailing sequence of the filename? That should be pretty simple, ...

6 years ago | 0

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Answered
Matlab strcmp Error - help
The biggest problem is you're trying to deal with numeric data as string -- convert to numeric. This, unfortunately, isn't hand...

6 years ago | 1

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Answered
How do I calculate the mean of only positive values
mean(X(X>0)) % global mean or arrayfun(@(i) mean(X(X(:,i)>0,i)),1:size(X,2)) % column means depending upon which mean...

6 years ago | 0

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i want to use goto to jump from third line to eighth line.
if (i==4)|((dx/yg(i))<tand(sia)) X else P(i-1)=0 end or if (i~=4)&((dx/yg(i))>=tand(sia)) P(i-1)=0 else X end

6 years ago | 0

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Linear model fit error
x1 = [7 8 7 8 7 8 7 8 7 8 7 8 7 8 7 8 6.5 8.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5].'; x2 = [12 12 12 12 12 12 12 12 20 20 20 20...

6 years ago | 0

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I am getting error "Conversion to cell from uint8 is not possible." Can anyone please help in debugging this? Thank you for your time.
segmented_images=cell(1,3); did indeed define to be a cell array, but then you wrote segmented_images(k)=colors; segmented_im...

6 years ago | 1

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Answered
When using listdlg to create a menu, how do you access the user input?
>> cList = {'United Kingdom','Bulgaria','Germany','Greece','Sweden','Netherlands','Spain','Romania','Luxembourg','Poland'}; [in...

6 years ago | 0

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Answered
Edit a column in a dat file with some header lines and a table
A) goes something like nHeaders=11; % or whatever fidi=fopen(filenameIn,'r'); fido=fopen(filenameOut,'w'); for i=1:nHeaders...

6 years ago | 1

Answered
How to transfer data from a messy .rpt file to an array
>> data=textread('output.rpt','%s','delimiter','\n','headerlines',5) data = 14×1 cell array {'CASE = ""' ...

6 years ago | 1

Answered
Error when fitting polyfit curve
Error is exactly what it says--you wrote: X = categorical({'March','April','May','June','July','August','November'}); M = reor...

6 years ago | 0

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Answered
Export a Char String to Excel
The example doesn't work as is, exactly... >> res = ['Carreau-Parameter: ';'a = 7521.1446 Pa*s ';'b = 0.10637 s ';'c = 0.7...

6 years ago | 1

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Answered
How to convert a vector to a string (Matlab2016a)
For what definition of "string"? >> A=1:3; >> num2str(A) ans = '1 2 3' >> num2str(A.') ans = 3×1 char array ...

6 years ago | 0

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Continue Long Statements on Multiple Lines
ix=find(~contains(txt,'Sys')); >> arrayfun(@(ix) join(txt(ix-1:ix),1),ix) ans = 2×1 cell array {'Sys_7899 1=0.21 2=...

6 years ago | 0

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Mean of mutiple variables
d=dir('data*.mat'); % or similar list. Name files so can use appropriate wildcard expression total=0; for i=1:numel(d) ...

6 years ago | 1

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Answered
How to use fillmissing function within a group ?
>> varfun(@(x) fillmissing(x,'previous'),T,'groupingvariables',{'ID'},'InputVariables',{'amount1','amount2'}) ans = 6×4 tabl...

6 years ago | 0

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