Answered
Can't find where the warning msg is from
Matlab fails to provide a meaningsful error message in this situation. It's left to the user to provide a work-around. Here i...
Can't find where the warning msg is from
Matlab fails to provide a meaningsful error message in this situation. It's left to the user to provide a work-around. Here i...
8 years ago | 2
Answered
Hello I have a question with struct()
S = sum([output.timediff]);
Hello I have a question with struct()
S = sum([output.timediff]);
8 years ago | 0
| accepted
Answered
How to assign index to array
Try >> M(:,end+1) = reshape( [1:size(M,1)], [],1 ); >> M M = 1 3 4 9 1 3 5 5...
How to assign index to array
Try >> M(:,end+1) = reshape( [1:size(M,1)], [],1 ); >> M M = 1 3 4 9 1 3 5 5...
8 years ago | 0
| accepted
Answered
Guide program - calculation of multiple data sets
Without details it is difficult to be specific. compile a "list", |sad|, of the files of the selected folders sad = dir(...
Guide program - calculation of multiple data sets
Without details it is difficult to be specific. compile a "list", |sad|, of the files of the selected folders sad = dir(...
8 years ago | 1
Answered
How To Detect Special Characters
>> str = regexp( '1asdf?', '[^\w]', 'match' ) str = '?' where I defined *not* being special as _"Any alphabetic,...
How To Detect Special Characters
>> str = regexp( '1asdf?', '[^\w]', 'match' ) str = '?' where I defined *not* being special as _"Any alphabetic,...
8 years ago | 1
Answered
How can I create matrices out of a matrix?
L1_sample = L1( 1, : ); L1_remain = L1( 2:end, : ); should do it - I think
How can I create matrices out of a matrix?
L1_sample = L1( 1, : ); L1_remain = L1( 2:end, : ); should do it - I think
8 years ago | 0
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Answered
whenver i insert this if statement inside a for loop, i get an error. Could someone please explain why? Much appreciated!
*Comments* * *|isdouble|* is a special function of <https://uk.mathworks.com/help/fixedpoint/ref/isdouble.html the Fixed Poin...
whenver i insert this if statement inside a for loop, i get an error. Could someone please explain why? Much appreciated!
*Comments* * *|isdouble|* is a special function of <https://uk.mathworks.com/help/fixedpoint/ref/isdouble.html the Fixed Poin...
8 years ago | 1
| accepted
Answered
How fprintf cell array and martix?
%% xx={'2017032312_8953';'2017032312_8978'}; yy=[10;11]; for jj = 1 : length( xx ) fprintf( '%s %3.1E \n', xx{...
How fprintf cell array and martix?
%% xx={'2017032312_8953';'2017032312_8978'}; yy=[10;11]; for jj = 1 : length( xx ) fprintf( '%s %3.1E \n', xx{...
8 years ago | 2
| accepted
Answered
How to Reduce Computation Time
The code analyzer box in the upper right corner tells you that there is potential for improving the code. Hovering over the smal...
How to Reduce Computation Time
The code analyzer box in the upper right corner tells you that there is potential for improving the code. Hovering over the smal...
8 years ago | 0
Answered
How to generate random numbers between two numbers without any specific number?
_"[...] without any specific number?"_ I don't understand that. However, try >> 2 + rand*(33-2) ans = 26.8...
How to generate random numbers between two numbers without any specific number?
_"[...] without any specific number?"_ I don't understand that. However, try >> 2 + rand*(33-2) ans = 26.8...
8 years ago | 0
Answered
Memory problem reading data in large netcdf files for a single variable
Am I correct that you want to calculate the statistical measures (min, max, etc.) for 684x447 time series of 3250 hours length (...
Memory problem reading data in large netcdf files for a single variable
Am I correct that you want to calculate the statistical measures (min, max, etc.) for 684x447 time series of 3250 hours length (...
8 years ago | 0
Answered
Help debugging a code? Says function makes an error but when I run it, it returns the correct output...
IMO: Your code is a nightmare to debug and I will not try. There is a problem with *|output|*. It's not used as output. *...
Help debugging a code? Says function makes an error but when I run it, it returns the correct output...
IMO: Your code is a nightmare to debug and I will not try. There is a problem with *|output|*. It's not used as output. *...
8 years ago | 0
Answered
Converting a string Array into a Char array
_"My intentions are to graph time vs. temp."_ %% [date, time, temp ] = textread('h:\m\cssm\data.txt','%s %s %f', 8 ); ...
Converting a string Array into a Char array
_"My intentions are to graph time vs. temp."_ %% [date, time, temp ] = textread('h:\m\cssm\data.txt','%s %s %f', 8 ); ...
8 years ago | 0
Answered
how to subplot data from two matrix using for loop?
Problems with your code * *|A(i)|* outputs a scalar. You want *|A(:,i)|*, which outputs the i:th column * your code displaye...
how to subplot data from two matrix using for loop?
Problems with your code * *|A(i)|* outputs a scalar. You want *|A(:,i)|*, which outputs the i:th column * your code displaye...
8 years ago | 0
| accepted
Answered
How do I go about using my MATLAB knowledge and transfer that to real world applications?
*MATLAB* The Mathworks have developed the Matlab programming language significantly over the last decade. Opinions expres...
How do I go about using my MATLAB knowledge and transfer that to real world applications?
*MATLAB* The Mathworks have developed the Matlab programming language significantly over the last decade. Opinions expres...
8 years ago | 0
| accepted
Answered
Function [output]=FunctionName(input)
Go to <https://uk.mathworks.com/help/matlab/matlab_prog/create-functions-in-files.html Create Functions in Files> and look for *...
Function [output]=FunctionName(input)
Go to <https://uk.mathworks.com/help/matlab/matlab_prog/create-functions-in-files.html Create Functions in Files> and look for *...
8 years ago | 1
| accepted
Answered
Importing cnv file with header lines
Given * the entire file fits in a fraction of the memory * **END** is the last line before the numerical part of the file. ...
Importing cnv file with header lines
Given * the entire file fits in a fraction of the memory * **END** is the last line before the numerical part of the file. ...
8 years ago | 1
| accepted
Answered
How do I make a list of objects that have specific properties?
An alternate approach %% Create some data loc = randi( [double('A'),double('D')], 1,8 ); loc_str = arrayfun( @char, l...
How do I make a list of objects that have specific properties?
An alternate approach %% Create some data loc = randi( [double('A'),double('D')], 1,8 ); loc_str = arrayfun( @char, l...
8 years ago | 0
Answered
Operations on variables with specific naming patterns
It's easier to say that dynamically named variables and *|eval|* is not a good idea than making recommendation regarding a desig...
Operations on variables with specific naming patterns
It's easier to say that dynamically named variables and *|eval|* is not a good idea than making recommendation regarding a desig...
8 years ago | 0
| accepted
Solved
Back to basics - mean of corner elements of a matrix
Calculate the mean of corner elements of a matrix. e.g. a=[1 2 3; 4 5 6; 7 8 9;] Mean = (1+3+7+9)/4 = 5
8 years ago
Solved
Sort numbers by outside digits
Sort the array so that they are sorted as if their value was a 5 digit number made from the first three and last two digits of t...
8 years ago
Answered
How to convert .mat file into text file in a specific format ?
I assume that the mat file contains a cell array named, *|x|* %% x={ 0.000000, 0.000000 0.500000, 0.333333 ...
How to convert .mat file into text file in a specific format ?
I assume that the mat file contains a cell array named, *|x|* %% x={ 0.000000, 0.000000 0.500000, 0.333333 ...
8 years ago | 0
Answered
reading a txt file including dash
One way %% fid = fopen( 'DI_WATER.txt' ); cac = textscan( fid, '%f%f%f%f%f%f%f%f' ... , ...
reading a txt file including dash
One way %% fid = fopen( 'DI_WATER.txt' ); cac = textscan( fid, '%f%f%f%f%f%f%f%f' ... , ...
8 years ago | 0
| accepted
Answered
How to remove first charachter from a string inside a cell
One way with R2016a >> load 20_SVO.MAT >> data_SVO(:,3:4) = regexprep( data_SVO(:,3:4), '\$', '' ); >> data_SVO da...
How to remove first charachter from a string inside a cell
One way with R2016a >> load 20_SVO.MAT >> data_SVO(:,3:4) = regexprep( data_SVO(:,3:4), '\$', '' ); >> data_SVO da...
8 years ago | 0
| accepted
Answered
What's the cost of overwriting a variable versus clearing it every time it changes?
Comments * don't speculate; make a test * make it a habit to use the function, *|profile|* * see <http://wiki.c2.com/?Prem...
What's the cost of overwriting a variable versus clearing it every time it changes?
Comments * don't speculate; make a test * make it a habit to use the function, *|profile|* * see <http://wiki.c2.com/?Prem...
8 years ago | 4
| accepted
Answered
How to convert from cell array to multidimensional array?
Loops are allowed if one remember to pre-allocate %% num = nan( 7, 7, 6, 10000 ); for jj = 1 : 10000 num(:,:,...
How to convert from cell array to multidimensional array?
Loops are allowed if one remember to pre-allocate %% num = nan( 7, 7, 6, 10000 ); for jj = 1 : 10000 num(:,:,...
8 years ago | 2
| accepted
Answered
Really easy one how to quickly repeat columns in an array
C = (1:10)'; M = repmat( C, [1,10] ); inspect the result >> whos C M Name Size Bytes Class ...
Really easy one how to quickly repeat columns in an array
C = (1:10)'; M = repmat( C, [1,10] ); inspect the result >> whos C M Name Size Bytes Class ...
8 years ago | 2
Answered
Seperating strings and numbers using xlsread
Loops are allowed >> [ str, num ] = cssm0(); >> whos str num Name Size Bytes Class Attributes...
Seperating strings and numbers using xlsread
Loops are allowed >> [ str, num ] = cssm0(); >> whos str num Name Size Bytes Class Attributes...
8 years ago | 1
| accepted
Answered
How to store two tables resulting from a for loop
Yes, with something like this for jj = 1 : 2 T = something; filename = sprintf( 'myfile_%d', jj ); w...
How to store two tables resulting from a for loop
Yes, with something like this for jj = 1 : 2 T = something; filename = sprintf( 'myfile_%d', jj ); w...
8 years ago | 0
| accepted