Community Profile # Orion

### University of Maryland Baltimore County

Last seen: 1 year ago Active since 2012

#### Statistics

• • #### Content Feed

View by

Question

Change datetime display format
I have a julian date that I convert to a MATLAB datetime variable using: tj = 2.456870501842000e+06; mtime = datetime(tj,'Conv...

2 years ago | 1 answer | 0

### 1

Question

Plot shell boundary in 3D
I want to plot a shell layer structure in 3D space. I have three-dimensional coordinate vectors x(:,:,:), y(:,:,:), z(:,:,:) and...

4 years ago | 1 answer | 0

### 1

Question

Compute Streamlines in Parallel and Antiparallel Directions
I have a field vector on a 3D grid and I am using XYZ = stream3(X,Y,Z,U,V,W,startx,starty,startz) to calculate the stre...

4 years ago | 1 answer | 0

### 1

Question

Pattern recognition in a data matrix (non-image)
I want to find a certain pattern in intensity data which is a 3d matrix. The intensity is a function of time and phase. The pcol...

5 years ago | 1 answer | 0

### 1

Question

plotting with pcolor instead of imagesc but with a similar coloring algorithm
I am trying to plot a dataset with variable y-axis values. I used pcolor to make this plot: <</matlabcentral/answers/uploade...

5 years ago | 1 answer | 0

### 1

Question

Large data file with mixed character strings and numerical formats
I have a large data text file with 2,000,000 rows and 100 columns. Some columns have numerical values and some are character str...

5 years ago | 2 answers | 0

### 2

Question

Smooth and Filter large data set
I have a signal data array of 2,000,000 elements and I want to smooth the signal as it is very spiky. I tried to use the 'smooth...

6 years ago | 1 answer | 0

### 1

Question

Convert to MATLAB date number
How can I convert '2015-033T18:00:00' to Matlab date number? 033 is the day of year, i.e. Feb 2.

6 years ago | 1 answer | 0

### 1

Question

Covert a cell to multidimensional matrix
I have a 50 X 1 cell array, A, and each cell contains an m x 100 matrix, where m is variable and not the same for each of the ce...

6 years ago | 2 answers | 0

### 2

Question

Streamlines of a Vector Field in Spherical Coordinates
How can I use the MATLAB 'streamline' function with spherical coordinates? in the function syntax: streamline(X,Y,Z,U,V,W,...

7 years ago | 0 answers | 0

### 0

Question

textscan in a for loop, memory issue
I have a text file with 140000 lines, each line has a string at the beginning and then 10 data points. I want to read this file ...

7 years ago | 2 answers | 0

### 2

Question

Change the Marker size and color in the legend of a scatter plot
I have a scatter plot in a for loop, and at each iteration, the shape and the color of the markers change. when I plot the legen...

7 years ago | 1 answer | 0

### 1

Why is the marker size in the legend of a SCATTER plot not equal to the marker size in the plot?
M = findobj(h,'type','patch') % Find objects of type 'patch' set(M,'MarkerSize', sqrt(150)) %Calculate marker size based on...

7 years ago | 1

How can I access variables inside a table inside a table?
You can address that by: FinalTables{1}(:,1) the number in the curly bracket assigns the cell elements (tables) and indi...

7 years ago | 0

Question

Read timestamp from data file with mixed formats
I have a file with mixed date: 23.4 F15 2014-106T19:11:46 22.1 F16 2015-203T00:25:26 13.3 F100 2015-250T20:1...

7 years ago | 2 answers | 0

### 2

Question

max function in a for loop
Are we not allowed to use max function in a for loop? I have a 25x50 cell array A, and each element of A is a vector of various ...

7 years ago | 1 answer | 0

### 1

Mass spring system equation help
I think a question similar to this has been answered in this thread http://www.mathworks.com/matlabcentral/newsreader/view_thre...

8 years ago | 0

Question

Fitting a discrete binning structure to a continuous binning structure
I have two binning structures, one is discrete which has gaps in between and different lengths and the one with continuous bin...

8 years ago | 0 answers | 0

### 0

if i have a i*j matrix(with random numbers ), then how can i make the sum of first row = d(say d= 5).
You can do this: http://www.mathworks.com/matlabcentral/newsreader/view_thread/318632 And you don't need a value constraint in ...

8 years ago | 0

Question

Cell-mode options in command line
Are the cell mode options available in command line? I want to run a cell of a script from linux command line. while I can do it...

8 years ago | 1 answer | 0

### 1

Question

Lookup Table for Multi Variable Implicit Function or MATLAB Function
In order to call the precalculated values of a multi-variable function can I use the Simulink n-D Lookup Table or is there a MAT...

8 years ago | 1 answer | 0

### 1

Question

TEXTSCAN Reads from Fortran Output - Precision Problem
I am reading the output data from a fortran generated file which is in the form 720. 2.715E+12 4.437E+10 730. 2.342...

8 years ago | 1 answer | 0