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raym


Last seen: 7 days ago Active since 2017

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Question


Is there a uicontrol to let user rearrange rows of strings?
The aim is to show several rows of strings, and let the user freely sort the strings by drag. The listdlg cannot let the user t...

5 months ago | 1 answer | 0

1

answer

Question


How to undo axis(gca,'image')
I use imagesc to show a demo: imagesc % a photo shows, with blank on top, stretchable by the resize of the window axis...

5 months ago | 1 answer | 0

1

answer

Question


get(gca,'DataAspectRatio') does not refelct the real pixel ratio, and does not upate after stretching the figure window in default auto mode.
Hi, I am using imagesc to show a matrix and want to get the aspect ratio of pixels at that time: C = [0 2 4 6; 8 10 12 14; 16 1...

6 months ago | 1 answer | 0

1

answer

Answered
Generate DICOM file sequence from Matlab
Yes this SeriesInstanceUID and StudyInstanceUID solved my problem. I think to get 3D volume you may need other parameters like...

7 months ago | 0

Answered
H5F.close(fid) flush was delayed, and cause problem when calling h5create afterwards
solved by H5F.flush(fid,'H5F_SCOPE_GLOBAL') H5F.close(fid)

9 months ago | 0

| accepted

Question


H5F.close(fid) flush was delayed, and cause problem when calling h5create afterwards
Hi, I am using low-level H5 commands to create a h5 file and do something on it, then close it. Then I use h5 high-level funct...

9 months ago | 1 answer | 0

1

answer

Question


Sort or place several points into the nearst point in an unknown a x b grid, and get each point's (i,j) index in the grid.
Hi I encountered a problem when I try to allocate K points into a horzontal/vertical grid of unkonwn size. Suppose there are va...

9 months ago | 1 answer | 0

1

answer

Answered
WindowButtonMotionFcn cannot be changed in later time
I found the reason: zoom yon this command modifies the pan callbacks into an temporary status, thus modification of pan callba...

1 year ago | 0

| accepted

Question


WindowButtonMotionFcn cannot be changed in later time
Hi, I am creating a figure and customize the pan-function: function hFig = mouse_figure ... hFig = figure; set(hFig,... ...

1 year ago | 1 answer | 0

1

answer

Question


textscan(fid,'%s','delimiter',{'\r','\n'}) lost a Tab located in the very beginning of 1st row of text file
Hi, I am using textscan to read a tsv file. This tsv file has an empty cell in the {1,1} position, but the textscan lost this t...

1 year ago | 1 answer | 0

1

answer

Question


bsxfun @times the row sum and @rdivide the (1./row sum) does not produce same results
Hi, I am using bsxfun to divide a matrix by row sum. That is to say, each number is divided by the sum of row it is located. I ...

1 year ago | 2 answers | 0

2

answers

Question


listbox cannot make it select single or none, it has to be single or multiple.
Hi,I am using listbox to select item. The aim is to select only one, or no select. I set min to 0 and max to 1, but the ui doe...

1 year ago | 1 answer | 0

1

answer

Question


imagesc is missing several rows of pixels when image has 1780 rows of pixel
% Simple demo to reproduce the bug. % Purpose: show 2000x300 image by imagesc with yticklabel, % then do "Y-only" zoom fo...

1 year ago | 0 answers | 0

0

answers

Question


stop and re-start timer inside TimerFcn cause pseudo-multiple parallel duplicated timer (in fact only 1 timer exist) running.
I start a timer and need to update the Period property during the running when some condition was met. inside (I put the code ...

1 year ago | 0 answers | 1

0

answers

Answered
Programmatically performing "Expand axes to fill figure"?
works not very well if there are text or annotation created outside the plot area as they will be partially cropped. axis tickl...

1 year ago | 0

Question


keypress callback in figure works but always send a copy of key to matlab command line afterwards
Hi,I am writing a callback to a figure: f=figure; imagesc(rand(56,67)) % set(f,'KeyPressFcn',[]); set(f,'WindowKeyPressFcn',...

1 year ago | 0 answers | 0

0

answers

Question


javaaddpath not update during runtime inside a function
Hi, I encountered a problem trying to load a jar inside a function. The problem is that when the function runs, it goes into in...

2 years ago | 0 answers | 0

0

answers

Question


com.google.gson appears multiple time in matlab jar library and refuse to load new version of com.google.gson
I have encountered this problem in many times in the past years. Matlab has several library jars with com.google.gson class, in...

2 years ago | 0 answers | 0

0

answers

Answered
How to let a lab tell if another lab is idle or not in a spmd block at that time : isidle(labindex)
labProbe can solve this problem.

2 years ago | 0

| accepted

Question


How to let a lab tell if another lab is idle or not in a spmd block at that time : isidle(labindex)
Hello, Is there a way to let lab 2 know if a lab 1 is idle or not in a specific timepoint: % an example (not related to reali...

2 years ago | 2 answers | 0

2

answers

Question


m file code sometimes loss a "end" and corruput the file on hard disc.
I encountered some very rare error (~1 occurance/year). The error is that when I run matlab project/functions, very rarely the ...

2 years ago | 1 answer | 0

1

answer

Submitted


loop pause continue manipulator
This small panel can pause during a loop by switch the button anytime. If switch to pause, next loop will pause,, until switc...

2 years ago | 0 downloads |

Question


Can I delete the folder C:\MATLAB\SupportPackages\R2016a\downloads?
I have installed several Suppoer Packages before, but my C drive is almost full. I found several large files, such as NIDAQ145...

2 years ago | 0 answers | 0

0

answers

Answered
PowerPoint ActiveX(COM interface) became very unstable suddenly
The problem is solved by 2 ways: (1) always use admin account. (2) let admin entitle the admin privileges to the account to be...

2 years ago | 0

| accepted

Question


PowerPoint ActiveX(COM interface) became very unstable suddenly
Hi, I have been using ActiveX to control powerpoint (such as insert picture, text box) for a long time. The background is that,...

2 years ago | 1 answer | 0

1

answer

Answered
problem with watershed 3D segmentation
max(max(max(L))) is 5, which means there are already 5 cells detected. you can play like this : implay(L*40,2) the display ra...

2 years ago | 0

Answered
How to prevent a figure window to automatically take focus
This is how I solve the problem: focusHwnd = WindowAPI(0,'GetFocusHWnd'); % ... do the figure, plot, etc. WindowAPI(focusHwnd...

2 years ago | 0

Question


File size continuously increase when use h5D.write() to update some data block in original place.
Hi, I am trying to update a data block into a h5 file using h5D.write. The updated file opens with no problem, but the file si...

2 years ago | 1 answer | 0

1

answer

Question


strsplit: the deliminator on both sides was still kept but not removed
Hi, I am using strsplit to split a string by space using R2016a. I expect all the space was removed, but I got: strsplit(' aa...

2 years ago | 1 answer | 0

1

answer

Question


fread does not return the required length of data for large file.
Hi I aim to read a region of data from a large file in binary mode, but the returned vector is of wrong length. % a file of 3...

3 years ago | 1 answer | 0

1

answer

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