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Simon Chan


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Active since 2021

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Answered
How can I plot a bar char from an excel file?
Try the following: T = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1276650/Sample.csv'); X = cat...

7 dagar ago | 0

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Answered
Having data on yearly basis but want to have it on monthly basis
Read about function retime

14 dagar ago | 0

Answered
Carry out the sum of all Januarys, Februarys through December in a range of years
Read about <https://www.mathworks.com/help/matlab/ref/double.groupcounts.html groupcounts> with groupbins "monthname".

26 dagar ago | 0

Answered
How to extract all the data between two different dates?
You may use function <https://www.mathworks.com/help/matlab/ref/datetime.isbetween.html isbetween>.

ungefär en månad ago | 1

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Answered
How to create a gif?
Check the answers from <https://www.mathworks.com/matlabcentral/answers/94495-how-can-i-create-animated-gif-images-in-matlab her...

ungefär en månad ago | 0

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Answered
What really is in each pixel of a DICOM slice ?
You may check the following DICOM Tags:(0028,0100), (0028,0101) and (0028,0102) regarding to the information about number of bit...

ungefär en månad ago | 2

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Answered
How to convert secondly data to daily data?
Read about groupsummary.

3 månader ago | 0

Answered
Suppress figures instead of displaying each one and closing it.
Set the figure to invisble and use f as the handle in the following example if needed. f = figure('Visible','off')

3 månader ago | 0

Answered
Use Matlab Function Block to plot into figure created by Matlab Script
Try this in the function path_plotting function path_plotting(x_pos, x_pos_prev, y_pos, y_pos_prev, ax1) x_coodinates = [x...

3 månader ago | 0

Answered
Dimensions of array being concatenated are not consistent
Variable um1 is a column vector which have the same size as variable t or Ag. However, variable uo is a scalar which is equals t...

3 månader ago | 0

Answered
3D plot of output variables
Try function plot3 data = load('Output100.mat'); plot3(data.Y1,data.Y2,data.t);

3 månader ago | 0

Answered
Add labels to multiple points in scatterplot
Read about <https://www.mathworks.com/help/matlab/ref/matlab.graphics.datatip.datatip.html datatip>.

3 månader ago | 0

Answered
How to scale the data with matric of lon (1300 x 1300) and lat (1300 x 1300) ?
Use idexing as follows and please verify the variable names you are using. lon_idx = (geo.lon > 118) & (geo.lon < 124); ...

3 månader ago | 1

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Answered
Changing file path in a loop and save figures
Try this to indicate the entire path: savefig(fullfile(thisDir,'DN.fig'))

4 månader ago | 1

Answered
Exportapp error in saving entire app designer GUI
It support figure object and hence you should use: exportapp(app.UIFigure,[filepath filename]);

4 månader ago | 0

Answered
how to prevent plotting more curve than the axis limit in app uiaxes
Put those data below your limit to NaN. x=1:50; y=randi([-5,25],1,50); threshold = 0; y(y<threshold)=NaN; % Set thos...

4 månader ago | 0

Answered
In Matlab App designer eliminate the gray edge of an "Axes" component
Set the figure color to white. f = figure; f.Color=[1 1 1]; % Set color to white

4 månader ago | 0

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Answered
Add heatmap into uifigure (No App Manager)
You may use uipanel instead of uiaxes for heatmap

4 månader ago | 0

Answered
detect the largest red object, its centroid and put bounding box around it
use function <https://www.mathworks.com/help/images/ref/bwareafilt.html bwateafilt>

4 månader ago | 0

Answered
Meshgrid lighning and how to use contour around the plot
For the accurate solution, you need to find those x and y where z=0.2 and 0.8. If an estimated solution is accepted, the positi...

4 månader ago | 1

Answered
Surf plot on GUI interface
Create an uiaxes inside the uipanel or you can simply use uiaxes instead of uipanel inside the uifigure.

4 månader ago | 0

Answered
find and store the index value of maximum or minimum value of cell array
[~,idxMax]=cellfun(@max,yourCell); % Index for maximum [~,idxMin]=cellfun(@min,yourCell); % Index for minimum

4 månader ago | 0

Answered
How to create ROI object handle?
You may try the following: h = figure; imshow(imread('pout.tif')); imrect(); % not use the output of imrect() ax=gca; hAx=f...

4 månader ago | 0

Answered
Having issues with fprintf statement. It gives me "error using vertcat"
Missing dots in the second line, try the following fprintf(['j \t k =1 \t k=2 \t k=3 \t k=4 \n'... '- ----...

4 månader ago | 0

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Answered
How to align both vertically and horizontally annotation box with legend box in plots?
"annotation" dose not have properties of legend command as north, east,... I think you may need to calculate the margin separat...

4 månader ago | 0

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Answered
How to skip zeros values form a matrix and plot with a time values?
You may put those zero to NaN and plot it. It will skip those points. A = [1,2,3,4,0,6,7,0,9,10,11,0,13,14,15]; t=[1,2,3,4,5,6...

4 månader ago | 1

Answered
Plotting a legend without displaying data on UIAxes
Try this if you would like to show the figure and legend without showing the data. Set the 'LineStyle' to 'none' to hide the li...

4 månader ago | 0

Answered
how do i use datetime adjust xtick
Try the following without using the function datetick. f = figure; ax=gca; plot(ax,all_time_1206 , all_tide_outliner_1206,'k'...

4 månader ago | 0

Answered
i want to see each plot figure for every j i have, so how can i do it?
Your for loop states j = length(dt1), which is 3 in your case. So the for loop only do figure 3 for you. Use the following inst...

5 månader ago | 0

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Answered
How to shade the same area in each subplot in a 5x1 Figure?
If you would like to shade the entire region and already knowing the y-limits, you can put the value of those limits directly wh...

5 månader ago | 0

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