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Jon


Last seen: 7 mois il y a |  Actif depuis 2013

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Question


How can I plot a latitude / longitude point on a geotiff? (Without mapping toolbox.)
Hi. I have some geotiffs in geographic coordinates (WGS84) from various areas around the globe. I also have a list of points, de...

plus de 7 ans il y a | 1 réponse | 0

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Replacing a for loop with logical indexing
B = sum(isnan(A))>2;

plus de 8 ans il y a | 2

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How to get different scaling with the same range on the same axis?
I don't know of any commands that accomplish what you want, but you could rescale your y-axis, plot normally, then set your tick...

plus de 8 ans il y a | 1

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Assigning a variable to any value in a matrix
Try this for x = 1:10 if sum(x + Matrix(:) == 5) > 0 disp(x) end end

plus de 8 ans il y a | 0

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I am writing a code where user clicks a point in hole and it has to be filled with white.I am not allowed to use imfill.
A possible but perhaps slow solution is: 1. Get list of all holes in the image. There are a few ways to do this; you can use ...

plus de 8 ans il y a | 0

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In a sequence of 0 and 1, how to make sure that no same values appear more than 2 times consecutively?
Just modify your loop a little bit: for i = 3:length(nums) if nums(i) == nums(i-1) && nums(i) == nums(i-2) ...

plus de 8 ans il y a | 0

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How do I find more than one max, min and intersections values for different segments of the graph?
On the file exchange, look for peakdet.m for peaks/valleys and intersections.m for intersections (there are many types of both f...

plus de 8 ans il y a | 0

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Plot a variable against multiple independent variables.
http://www.mathworks.com/help/matlab/creating_plots/plotting-with-two-y-axes.html Also search plotyy on the file exchange. ...

plus de 8 ans il y a | 1

Réponse apportée
How do I find fork points of a skeleton? By fork point, I mean, a skeleton point having more than two adjacent points. Please help.
Have you tried branchpoints? http://www.mathworks.com/help/images/ref/bwmorph.html

plus de 8 ans il y a | 1

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x = [12 54 21 36 27 19 16 78 65 43 38 91 5 8 3 18] how can i find elements of x (the values of x) such that xi<=30 and 30<=xi<=50
Look at the find() function. You can use logical operators like < , > , and = . Just try some things and see what happens.

presque 9 ans il y a | 0

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How to remove first three columns from a text file?
blah = importdata('1_rowdel.txt'); datayouwant = blah.data; save('mydata.txt','datayouwant','-ascii')

presque 9 ans il y a | 0

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how would I create a 6x6 matrix with evenly distributed values from -10 to 10?
Not entirely sure how you want the values distributed (by row or column), but see if this helps: Msize = 6; n = Msize^2;...

presque 9 ans il y a | 1

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Question


Is it possible to get signed curvature from splines of a non-single-valued curve?
I am trying to compute the curvature of a meandering river centerline. I have been using a method of finding the angle of the ce...

presque 9 ans il y a | 1 réponse | 2

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any size of matrix
Kinda confusing what you're asking. If your input matrix is M, just write ones(size(M)) for a matrix of ones the sam...

presque 9 ans il y a | 0

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How do I stop a code from continuing ifelse statements?
http://www.mathworks.com/help/techdoc/ref/return.html http://www.mathworks.com/help/techdoc/ref/break.html Take your pick....

presque 9 ans il y a | 0

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Looking to plot a known, single value variable, against another, single value variable, for a range of figures
y = 0:1:100; % can change this range to whatever you want; the middle number is the interval R1 = (m*(L*7.22)*(f*cosd(y...

environ 9 ans il y a | 0

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How to generate vectorgraphic pdf from MATLAB?
http://www.mathworks.com/matlabcentral/fileexchange/23629-export-fig

environ 9 ans il y a | 0

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Stop for loop if F <= 0
Why are you opposed to using break? If you mean that you want to redraw a random number if F <=0, you could do something like th...

environ 9 ans il y a | 0

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combine 2 image results of segmentation, into one of axes
I may not understand the question, but why not just use segmented portions 5 and 6 as a mask on the original BW image? I guess t...

environ 9 ans il y a | 0

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resizing all images in a folder
Yep. Try the following function: dc = dir('*.jpg'); but set the filetype to whatever the images are. Make sure your work...

environ 9 ans il y a | 0

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Réponse apportée
Terminate function after 5 minutes
Using Google, I found this: http://www.mathworks.com/matlabcentral/answers/20237-time-dependent-programs

environ 9 ans il y a | 0

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how to make comments *not* wrap?
Did you even look through the Editor options in Preferences? There is a button you can uncheck to turn it off.

environ 9 ans il y a | 2

Réponse apportée
Error: The expression to the left of the equals sign is not a valid target for an assignment.
I can't figure out why you're getting an error, but it works if you put square brackets around the expression, like this ra...

environ 9 ans il y a | 1

Réponse apportée
displaying only even values in a for loop?
Use the _rem_ command. If the remainder is zero after dividing the number by 2, display it. I'm purposely not writing the code.

environ 9 ans il y a | 0

Réponse apportée
repeating values in the loop
You are looping over j, but nothing in your equation is changing with respect to j. Only after all the j's are finished and i ch...

environ 9 ans il y a | 0

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Noob problem: Defining a fumction and passing values issues an error "Subscript indices must either be real positive integers or logicals."
Runs fine on my machine-no errors. 2015a. Do you have a variable named SSD or zeros?

environ 9 ans il y a | 0

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When you dilate and erode a binary image of a skeleton does the skeleton keep its proportion?
I do this exact procedure in the context of skeletonizing rivers to find their centerlines. I have to add the ends back after ru...

environ 9 ans il y a | 0

Réponse apportée
Getting the mean value of a row in an array?
If you have an array called myarray that is mo x yearidx (as you state in your question) and you want the average of all mo == j...

environ 9 ans il y a | 0

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HOW TO REMOVE QUOTE MARK ?
What happens if you try tnum = str2num(cell2mat(t));

environ 9 ans il y a | 0

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Plotting results of for loop on one graph
Replace your plot(r,z_1) with this: plot(r,z_1,'.'); hold on If you don't turn the "hold" to "on" then the figure is o...

environ 9 ans il y a | 8

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