This question already has an answer here:
read from a text file and load it into a matrix in matlab [duplicate]
(1 answer)
Closed 7 years ago.
Good day.
I would like to know how to load a .txt file in matlab. What I want is to work with text classification and guess the first thing to do is load devo my data in matlab .... but when I try to generate many files .my I just want an array containing my text.
Greetings and thanks in advance.
There's multiple functions that do that: importdata,textscan,fopen,dlmread etc.
I do not understand much from your question, but begin by reading through these documentation pages and try them to see which works best for you.
Related
This question already has answers here:
How to read images from folders in matlab
(3 answers)
Closed 6 years ago.
I want to load an image in MATLAB :
f=imread('fulldirectory');
m=size(f);
printf('m');
MATLAB shows me this error when I attempt to run it:
"Error using imread (line 349)"
Can anyone help me?
Imread function needs a file format, e.g., jpg.
You can use one of the following MATLAB codes.
f = imread('ngc6543a.jpg');
f = imread('ngc6543a', 'jpg');
Also, just omit the semicolon (;) from your second line of your codes, if you want to know the dimension of the image. MATLAB will display the size of the image.
m=size(f)
MATLAB has some test images such as ngc6543a.jpg and you can try my code in your MATLAB.
This question already has answers here:
How can I customize the positions of legend elements?
(5 answers)
Closed 4 years ago.
I use MATLAB to draw a graph. The legends are too big and cover a part of the graph. I want to split the entries of the legend in two columns. I saw some solutions on the net that explain how to change the functions to display the legend in multiple columns. However, my program reads the data from an Excel file and their solutions don't work for me. Could anybody please help me to solve this issue? Sorry if my question is naive, I'm not good in MATLAB.
Here is my code:
A=xlsread('C:\temp.xlsx','A1:A10');
B=xlsread('C:\temp.xlsx','B1:B10');
C=xlsread('C:\temp.xlsx','C1:C10');
D=xlsread('C:\temp.xlsx','D1:D10');
E=xlsread('C:\temp.xlsx','E1:E10');
F=xlsread('C:\temp.xlsx','F1:F10');
G=xlsread('C:\temp.xlsx','G1:G10');
plot(A,B,A,C,A,D,A,E,A,F,A,G)
hold on;
axis([10 100 -10 0])
xlabel('length')
ylabel('BER')
legend('AAAAAAAAAA','BBBBBBBBBB','CCCCCCCCCC','DDDDDDDDDD','EEEEEEEEEEE','FFFFFFFFFF')
Here are two different links to matlab-files that should solve your problem:
ColumnLegend
GridLegend
The creation of the legend should be independent on how you read your data, so the fact that you read your data from Excel should not give you any problems!
How do I read a mesh file (.ply) and display it in Matlab?
Also, how can I change the camera viewpoint of said model?
Thanks
Go to this link : http://people.sc.fsu.edu/~jburkardt/m_src/ply_display/ply_display.m
and save this file.
The ply_display.m is a Matlab function (as opposed to a Matlab script). A Matlab function will usually need an input. You can call the ply_display function by being in the same folder as the .m file. You call it this way :
ply_display('file.ply')
%where
%'file.ply' is the name of the file
I see that this question was raised 2 years ago. But MATLAB R2015a seems to have what you wanted:
ptCloud = pcread(filename)
http://www.mathworks.com/help/vision/ref/pcread.html
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
How do I get the handles of all open figures in MATLAB
The situation is following. I run a couple of tests, which plot a lot of figures. I would like to convert them to pdf and compile into one file. Since each time I may get different type of plots and different number of plots, I need to get the list of all figures in current matlab session or workspace. Is this doable?
Thanks
h = get(0,'Children');
will put the "handles" to the figures you currently have in the variable h. get(handle) and set(handle,...) are gigantically useful in general. The handle 0 points at the root of the display, so all the figures on the display are the root's Children.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Is there a function in MATLAB that converts a .raw file into a matrix?
I have a image stored in .raw format. I would like to read it with matlab. Is it possible?
If not, what shld i do such that matlab can read .raw format?
There is a SO topic you can check out. Is there a function in MATLAB that converts a .raw file into a matrix? .
Also you can check multibandread.