Stephen23

Con actividad desde 2014

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Is griddedinterpolant omits NaN?
None of the pure interpolation routines will "omit" NaN values. NaN values will propagate from input to output, just as they sh...

2 días hace | 0

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I keep getting the "not enough inputs error" and I don't know how to fix it
"i get the " not enough input arguments " error pointing at the x(1) in the F(1) equation" That error is caused by the fact tha...

4 días hace | 0

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Trying to graph a function I made but it seems to only take the first x value.
Explanation The basic problem is that you wrote your function assuming only a scalar input: Fresnel(2) However you did not wr...

5 días hace | 1

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Respondida
Command findobj('Type','FunctionLine') produces error if used after fplot invoked with three arguments, fplot(X,Y,LIMITS) - 0×0 empty GraphicsPlaceholder array
A curve defined by a function of X and a function of Y is a parametric curve, so you would need to search for the corresponding ...

6 días hace | 0

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Error while reading the .csv file
Explanation: As its documentation makes clear, the first input to FOPEN must be the fiename. However, instead of calling it with...

6 días hace | 0

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syntax of this line tmp = cellfun(@(tbl) tbl(:, cellstr(dataVariables(ct))), trainDataNormalized, 'UniformOutput', false);% in RUL tutorial
"I can't figure out what @(tbl) tbl is supposed to do , I didn't create neither a function or a variable with such a name, t...

6 días hace | 0

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Why does converting categorical(0) to double add 1?
"Why, when converting "a" to double, does "a" become 1, when it was categorical(0) before?" It doesn't. Your comparison is not ...

7 días hace | 0

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unexpected response when trying to concatenate by row after accessing cell value
The MATLAB approach is to simply call VERTCAT instead of the concatenation operator: C = {[5,1];[4 1];[3 1];[2 1];[1 1]}; M = ...

8 días hace | 0

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Read big file with mixed data types with datastore
ds = datastore('./*.txt', 'Type','tabulartext', 'NumHeaderLines',2, 'TextscanFormats',repmat("%f",1,5)); T = preview(ds)

9 días hace | 0

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How to plot 4 Tiled plots with 2 x axis and 2 y axis in one figure
Do NOT call TILEDLAYOUT multiple times. Only call TILEDLAYOUT once. After that you call NEXTTILE for each plot. "I want to plo...

13 días hace | 0

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Need to create an array that consists of 5 numbers found through a while loop
Take a look at this line: array.append = distance; You looks as if you are trying to write Python code. However, MATLAB does n...

14 días hace | 0

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how do I save the entire workspace?
https://www.mathworks.com/help/matlab/ref/save.html

19 días hace | 0

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How do I merge two structs, where one field in the struct is itself a struct?
You can always use a loop and DIY: obj.Experiment = struct('Measurement',struct([])); useStructVar = true; % true = "Real-w...

20 días hace | 0

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How to replace the missing values in cell array with previous ones?
C = load('data_imp.mat').cycles_check; C{1} = '01L'; C(cellfun(@isempty,C)) = {''}; C = fillmissing(C,'previous')

20 días hace | 0

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How to extract numerical values from a text in an array or table?
No need for slow superfluous CELLFUN. Simpler and more efficient: C = {'xxx'; 'yyy 15 units'; '15-25 units'; 'zzz'}; D = str2d...

21 días hace | 0

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Convert Python tuple output into MATLAB array
"The issue is that the double() function from MATLAB does not convert the tuple into a double array" No, the issue is actually ...

21 días hace | 0

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Merging uniform boxes into larger ones
You could download this FEX submssion: https://www.mathworks.com/matlabcentral/fileexchange/28155-inscribed_rectangle and use ...

22 días hace | 1

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Operator '+' is not supported for operands of type 'function_handle'.
"Is there something wrong with this code?" You are calling PLUS on the function handle LAP. Function handles are not numbers, ...

22 días hace | 1

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When the histcounts function is used, data that was not in the original data appears
"My data ecg_filterpeak_index is incremented." Nope, your data are not monotonically increasing. "The first value of ecg_peak_...

22 días hace | 0

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How do I input a variable into a string?
lv = 3; % example value "B"+lv+":Y"+lv sprintf('B%u:Y%u',lv,lv)

23 días hace | 1

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Respondida
An infinite recursive call occurred. How do I fix it?
Get rid of the 2nd line of code: GUI_INI_FM(gcf); % gcf는 현재 GUI 핸들을 가리킴(24.11.11) !!!! DELETE THIS !!!!

23 días hace | 2

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allocate array to structure, error "Scalar structure required for this assignment."
The error is easy to replicate given a scalar structure** on the LHS, which contains a non-scalar structure DATA (in your case w...

23 días hace | 0

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Interpolate timeseries of a 4D matrix (4th D as time)
Avoid using deprecated DATENUM & DATESTR, using DATETIME is much better. S = load('data.mat') dttA = datetime(2016,1:12,15); ...

28 días hace | 0

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Respondida
Data is being corrupted in graphs?
Your data are not being corrupted by MATLAB. You provided MATLAB with time data that has only three significant figures. This ...

29 días hace | 2

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Read first lines of txt files with textread
"How to get only first 16 lines od the txt files with textread command?" As the TEXTREAD documentation explains, the optional t...

alrededor de 1 mes hace | 0

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How to save Matrix in text-file using format double?
Using SAVE for text files is very outdated. The recommended approach is to e.g. WRITEMATRIX: M = [1930,0.0132; 1940,0.00103]; ...

alrededor de 1 mes hace | 1

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why on earth does strlength(string.empty) evaluate to an empty matrix and not 0?
"strlength(string.empty) evaluates to an empty matrix but strlength(char.empty), strlength('') and strlength("") all evaluate to...

alrededor de 1 mes hace | 1

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Extract 2D array from 3D array using logical index
"I have a PxMxN array that I want to convert in a PxK 2D array. K has to be obtained from a logical matrix MxN. Consequently, nu...

alrededor de 1 mes hace | 2

Respondida
Trying to add a variable RowName based off for loop.
You can certainly add rownames dynamically in a loop, but not by indexing one table into an existing table. Nrow = 5; Ncol = 7...

alrededor de 1 mes hace | 0

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come to convert words into cell array
g = 'Eb=3;bb=5;'; C = textscan(g,'%s%f', 'Delimiter','=', 'EndOfLine',';') C = [C{1},num2cell(C{2})] % not the best way to sto...

alrededor de 1 mes hace | 0

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