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I have a structure which includes some structures within itself. I want to get all the values in the inner structure and create a single column vector. How can I do that?
V=vertcat(data(:).I);

3年以上前 | 0

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Filling missing times in timetable with NaN using retime
load(websave('data.mat','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1148080/data.mat')) ttD=data_site_num_t...

3年以上前 | 0

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Axes not reconizing figure handle
hF=figure; hAx=axes(hF,'Position',[0.1300 0.3300 0.7750 0.700]); xlabel(hAx,'SomeText') ylabel(hAx,'MoreText') xlim(hAx,[0 3...

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Sorting Data into a Table
% make up some data N=randi(5,3,1); x=[];for i=1:numel(N),x=[x;i*ones(N(i),1)];end x=x(randperm(numel(x))) % the engine (cel...

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Plotting a two peak model as a fitted line on a probplot.
Actually, when I had a few minutes to think about it, it's not too hard; you just have to define the associated CDF function to ...

3年以上前 | 1

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Suppose i have a 1000*24 binary vectors each having 4 ones and 20 zeros in each row .Now want to extract the spcific vectors that have ones only at the speific positions.
Is that two separate cases of 12:15 AND 14:17 or one case that includes both cases? And is it all or any that must be 1? V1=12...

3年以上前 | 0

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Folder names sorting issues after reading from directory
I've never noticed a case in which dir returned a list differering in order from that returned by the OS -- what if you look at ...

3年以上前 | 0

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How to use num2str inside text with latex interpreter?
i=1; text(0.4,0.5,"L_{" + i + "}") i=i+1; text(0.4,0.4,"\it L_{" + i + "}") i=i+1; text(0.4,0.3,"\it L\rm_{" + i + "}") Va...

3年以上前 | 1

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Reuse figure/axes properties from figure A for figures B,C,D
hAxGolden=gca; % the gold standard hF=figure; % create new figure hAx=copyobj(hAxGolden,hF);...

3年以上前 | 0

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Loop through files of different length
When you compute what h is in samples (if sample rate varies, otherwise just set it as a constant), then [R,C]=size(ECGdata); ...

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I have a .txt file that I need to turn into a vector
v=readmatrix('YourFile.txt');

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how to read only last 2 columns of csv format file?
data=readtable(websave('plot.csv','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1147855/plot.csv'),'readvariab...

3年以上前 | 0

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How do I get the line of best fit and its equation from multiple datasets?
Presuming the problem with the file location is resolved, a fresh start is in order -- readvars is not a good choice here it wou...

3年以上前 | 0

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Represent the total mask usage data (for all counties) in a form of a pie chart
explode=[]; to not use the parameter; the empty cell array doesn't work, the empty double does; a logical array is expected.

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How to fake an app handle in the arguments?
Use mustBeScalarOrEmpty validation function instead of fixed size would get past that hurdle. I've no klew whether it'll actua...

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Need help making a plot from data in Excel with three columns and 2000 rows, to get two variables on the same axis.
Size of data is of no matter to syntax -- if you can plot a vector of 5 elements, you can plot one of thousands... data=readmat...

3年以上前 | 0

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Fastest way to index large arrays
With the lookup arrays structured as they are, you don't need a lookup at all; you can just calculate the row directly -- fnRow...

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organising data with fscanf
file=readlines(websave('data.txt','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1145645/data.txt')); data=[];...

3年以上前 | 1

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Code to import every 50th line of .csv isn't working
That's hard way to go about it -- data=readmatrix('Plain_VHB_Cyclic_Test_1.csv','numheaderlines',2); data=data(1:50:end,:);

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How to adjust the position of the x-axis ticks and put the angle degree on the values of the x-axis ticks?
With all values in one decade, log plot gets pretty squished; you can set the xlim to just cover the actual range and then only ...

3年以上前 | 0

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Why can't i change an excel file sheets during a loop in matlab
Because in ewb.Worksheets.Item(1).Name =[Varlist(1,a)] ; that's exactly what you told it to do -- rename Item(1) each time. U...

3年以上前 | 0

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Create a new excel file from trimmed data
Shure...just build a file name dynamically somehow instead of incrementing the sheet number as you did. FILES={'T04A', 'T04A_1'...

3年以上前 | 0

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Combine data from text files into 1?
Exact details for the easiest way to handle the three files would depend on how they're named/saved so as to keep the sets assoc...

3年以上前 | 0

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Plot on Boxplot on the same graph
Shift/Rescale the hourly times to be centered about the 1:N values. boxplot(T) hold on W=0.8; % fractional width of eac...

3年以上前 | 0

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"Axis" function error
-3 < 0 despite abs(3) being greater -- as the error message says, the axis limits have to be in strictly ascending order numeric...

3年以上前 | 1

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How to extract row data by searching in matrix.
x=45; y=105; % lookup values; use variables, don't bury magic numbers in executable code ixy=(Species(:,3)==x)&(Species(...

3年以上前 | 1

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I would like to plot few values of a vector based on threshold setting from another vector.
It works; you just can't see the single point that is left because the single point on a default line width without a marker jus...

3年以上前 | 1

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How to filter table rows according different conditions?
NHATS_table = readtable(file_name,"VariableNamingRule","preserve"); NHATS_table.Object=categorical(NHATS_table.Object); % c...

3年以上前 | 1

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How do I create x-axis in boxplot?
You've got the orientation of the array backwards to use boxplot effectively; it thinks columns are variables and rows observati...

3年以上前 | 1

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Error using fgets Invalid file identifier. Use fopen to generate a valid file identifier. Error in fgetl (line 34) [tline,lt] = fgets(fid);
Indeed, just downloaded and unzipped into a clean subdirectory -- it isn't the failure to open ID.dat that you're seeing, it is ...

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