Stephen23

Con actividad desde 2014

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How to save contourf data and not plot it for running efficiency?
If you require the contour output without plotting it then consider calling the low-level function CONTOURC: https://www.mathwo...

alrededor de 7 horas hace | 0

Respondida
Why does my function that should modify cells from an input return exactly the input every time?
This line: for j=size(p_cell,1) % y coord should be for j=1:size(p_cell,1) % y coord % ^^ After that you will need to f...

6 días hace | 0

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EXCEL TABLE - INDEXING MULTIPLE TABLES AT ONCE
Here is one approach using READCELL. It assumes that: all data blocks are aligned, the 3rd cell of the 1st row contains the p...

7 días hace | 0

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How to group number sequences in a vector
V1 = [1,1,1,2,2,3,3,3,1,1,3,3,3,2,2,2,1,1,1]; R1 = sprintf('\3+\2+\1+'); [Xs,Xe] = regexp(char(V1),R1) Some values would requ...

7 días hace | 1

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Not enough input arguments
Your function parameterisation is incorrect. This anonymous function: @(t,y,MAP,Nstep,xNOL)ActualmodelwithPinfinity(t,y,MAP(:,k...

8 días hace | 0

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how to convert a matlab variable name to a char for use in a title, legend, etc
https://www.mathworks.com/help/matlab/ref/inputname.html function(input_matrix) in_name = inputname(1); ... title(in_name) ...

9 días hace | 0

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Respondida
for loop for non integer values
It is usually much easier and clearer to loop over indices, rather than over data values: V = 1:0.5:10; E = nan(..); % preallo...

9 días hace | 1

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"Not enough input arguments" error when using fullfile
"I dont see how I dont have enough input arguments? " Very easily, when S1 is empty: S1 = dir('thisNameDoesNot*Exist') F1 = f...

9 días hace | 0

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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...

12 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...

14 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...

15 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 ...

16 días hace | 0

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Respondida
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...

16 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...

16 días hace | 0

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Enviada

MatPlotLib Perceptually Uniform Colormaps
MatPlotLib's default perceptually uniform colormap VIRIDIS and distinctive line ColorOrder TAB10

16 días hace | 113 descargas |

Respondida
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 ...

16 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 = ...

17 días hace | 0

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

18 días hace | 0

Enviada

Next Available Filename
Return the next unused filename, incrementing an integer as required.

21 días hace | 10 descargas |

Respondida
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...

23 días hace | 0

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Respondida
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...

23 días hace | 0

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

28 días hace | 0

Respondida
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...

29 días hace | 0

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Respondida
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')

29 días hace | 0

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Respondida
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...

alrededor de 1 mes 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 ...

alrededor de 1 mes 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 ...

alrededor de 1 mes 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, ...

alrededor de 1 mes hace | 1

Respondida
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_...

alrededor de 1 mes 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)

alrededor de 1 mes hace | 1

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