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index out of bounds
juju defines the intervals between sections. With 8 intervals, you define 7 sections. It fails when trying to get the 8th sectio...

fast 13 Jahre vor | 0

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Slow Triple for loop
1. Do the calculations as few times as possible: The following should be in the outer loop. - Unless you want latcounter to be a...

fast 13 Jahre vor | 2

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make a GUI for an existing programme
You can make a gui do almost anything, if you're willing to put in the effort to make it work the way you want it to. "guide" is...

fast 13 Jahre vor | 0

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initialising a color map
image_dat = uint16(randn(1024,1280)*5+5000); % random image (single colour channel) imagesc(image_dat) % display it colorbar ...

fast 13 Jahre vor | 0

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saving an variable into matlab for future use
Use cell arrays: variable{1} = 4; variable{2} = 'String'; variable{3} = 'D:\filehere\hi.wmv'; variable{4} = yourloadfu...

fast 13 Jahre vor | 0

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dynamic variable names in a loop
Thats a really bad idea. x={}; %real code loop starts here %pseudocode stuff = your input function that gets an input %...

fast 13 Jahre vor | 0

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if statement gives wrong results or does not work?
"any" and "all" are your friends, You have actually written if ALL of a >= a_sat set "b" else, if ALL of a < sat ...

fast 13 Jahre vor | 0

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Beantwortet
Plotting multiple days on one graph
Plot the times as date numbers (check the documentation for "datenum") Change the x axis labels to the "datestr" with something...

fast 13 Jahre vor | 0

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finding values from matrix
A = [45 46; 42 43]; logical_address = A>45; A(logical_address) %gives you a single 46. linear_index = find(logical_addr...

fast 13 Jahre vor | 0

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How can I generalize this for loop?
Whats wrong with? t = cumsum(d)/total;

fast 13 Jahre vor | 0

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Beantwortet
Generate variable names and assign them to workspace variables
This is the answer to the question you've asked: generated_variable_name = 'Big_whatever'; %(needs to be in your working wor...

fast 13 Jahre vor | 1

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Beantwortet
How can I findout mean,standard deviation and variance using hiatogram of an image
Easier to do that straight from the image: my_image = uint16(randn(128,128)*16383); std_of_my_image = double(std(my_i...

fast 13 Jahre vor | 0

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How can I get 2 signal differences in log scale?
You can get the ratio between the power levels simply by taking dB1 - dB2. This is probably more sensible unless the numbers are...

fast 13 Jahre vor | 0

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Can I determine iteration number which matlab executes?
count = 0; while dx~=0 .... .... count = count + 1; end

fast 13 Jahre vor | 1

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Beantwortet
Generating random numbers from normal distribution
If you take a random number from a gaussian (aka normal) curve, you can calculate the probability that number would come up. ...

fast 13 Jahre vor | 0

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Beantwortet
how to maintain continuity and periodicity of a function
Try ensuring that your fit wraps around - ie, that you give it x = 366 and y = the value it has when x = 0.

fast 13 Jahre vor | 0

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Access elements/fields from a struct
Sounds like you have something like: b = dir('C:\Windows\'); b(1) names = fieldnames(b(1)); for i = 1:numel(nam...

fast 13 Jahre vor | 4

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Beantwortet
Does in-equality operators work in comparison of two time format?
You have your brackets in the wrong places. (datenum(time_e_rad(j,:))< datenum(upp_lim)) && (datenum(time_e_rad(j,:)) >= d...

fast 13 Jahre vor | 1

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Beantwortet
Why is GUIDE not allowing me to have one (1) column and three (3) rows in my table? It seems as if the default table is 4 x 2
In your workspace, generate the default contents for the table. Set the data on the table to that.

fast 13 Jahre vor | 0

Beantwortet
Indexing problem - how to obtain row and column and use later
whereAequalszero = A ==0; B = A; B(whereAequalszero) = 4;

fast 13 Jahre vor | 0

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Beantwortet
how to plot y=ax+b for different equations
x = min_desired_x:step_size:max_desired_x; y = (x>0 & x<=1) * 1 + ... (x>1 & x<=3) * (2*x+1) + ... (x>3 & x<=5) *...

fast 13 Jahre vor | 0

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How to impute missing values using mean for a table
Use nansum, or nanmean, as required.

fast 13 Jahre vor | 0

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Hyper Image intensity level
You need to know the bit depth of each "slice" of your hypercube. (We can't tell you this, but its normally 8 bit for a standard...

fast 13 Jahre vor | 0

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Beantwortet
Given an array of data, is it necessary to use FFT to get the amplitude?
Try plotting it and seeing what that tells you... (max(2nd column) - min(2nd column))/2 might make most sense ;)

fast 13 Jahre vor | 0

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Beantwortet
Breaking up a matrix/array
codes = matrix(:,1); code_list = unique(codes); for i = 1:numel(code_list) new{i} = matrix(code_list(i) == codes,:); e...

fast 13 Jahre vor | 0

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Beantwortet
subtract numbers in the row
diff(x)

fast 13 Jahre vor | 1

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Beantwortet
change variable and assign to dataset in each loop
Three approaches for i = 1:12 %(Sheets not the same size) [numbers{i} texts{i} raws{i}] = xlsread(....); end Or ...

fast 13 Jahre vor | 1

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Beantwortet
How to check the value of a varriable of a subfunction?
You can use the command line option dbstop if error Or you can insert breakpoints inside your function to inspect (or c...

fast 13 Jahre vor | 0

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Preallocating memory for a matrix of unknown size
At what point do you know the required size? If it's "at the end", then you do have to do with the "arbitrarily big" option, ...

fast 13 Jahre vor | 4

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Beantwortet
Create a blank m-file by command lines
fid = fopen('D:\myfileshere\newfile.m','w'); fclose(fid); That will in fact create a new "m" file.

fast 13 Jahre vor | 0

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