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Ricardo Duarte


Last seen: 3 giorni ago Active since 2020

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Replace value that are associated to a location by nan
Dear all, I have a question that I hope you can help me. I have a map of sound pressure levels (spl) in which I patched a whi...

circa un mese ago | 1 answer | 0

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Question


Changing the coordinate system from WGS84 to matlab coordinate system
Dear all, I have a ".nc" file (attached) containing the dolphin dispersion in one specific area which was imported from ARCGIS ...

circa 2 mesi ago | 0 answers | 0

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answers

Question


How to change the colorbar limits in a previously saved fig file
Hello, I have a figure containing a colorbar that I saved in a .fig format. Now I need to open it and change the limits of the...

circa 2 mesi ago | 1 answer | 0

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Question


How to increase the performance of a cycle for in its use in large matrices?
Dear all, I have four matrices NewZ(1x20), Longitude(1000x1), Latitude(1000x1) and depthgrid(1000x1000). Note that depthgrid re...

circa 2 mesi ago | 1 answer | 0

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Question


How to assign a specific values to the nearest X,Y point
Dear all, I have two vectors X and Y which represents the vertices of a delauny triangulation. Additionally I have two other v...

2 mesi ago | 1 answer | 0

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Question


Interpolation of layers to obtain a layer in the orthogonal plan
Dear all, I have three variables S1, S2 and S3 with the size (1000x1000) all that represent the sound levels in three differen...

2 mesi ago | 1 answer | 0

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Question


Export matlab variable to be imported in QGis
Dear all, I need to export a 1000x1000 matrix containing sound pressure level of a specific region to be later imported at QGis...

3 mesi ago | 0 answers | 0

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How to create a heatmap from recorded positions
Dear all, Im trying to create a distribution map (or heatmap) from a table that represents ships positions (see figure). Bas...

3 mesi ago | 1 answer | 0

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Question


How to link x-axis of two plots in one single plot if they have diferent sizes
Dear all, I have the following plot. Y-axis corresponds to the depth and X-axis corresponds to the range And I have also a s...

5 mesi ago | 1 answer | 0

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Question


How to obtain a section from a surf plot
Dear all, I have a surface plot that represents the bathymetry of a given surface: x=longitute; y=latitude; z=depth; No...

5 mesi ago | 1 answer | 0

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Question


Moving points together along a specified path
Dear all, I have a question regarding the displacement of a point through time along a specified path. For example, I created ...

6 mesi ago | 0 answers | 0

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Answered
How to create several figures in a subplot with different axes
I overcame this by doing the following code: ax1=axes; subplot(7,1,k,ax1); imagesc(ax1,Xv,Yv,M); set(gca,'YDir',...

6 mesi ago | 0

Question


How to create several figures in a subplot with different axes
Dear all, I'm trying to create a subplot with 7lines and 1 column that plot all of my results consecutivelly. I have this piec...

6 mesi ago | 2 answers | 0

2

answers

Question


Concatenate variables with similar names
Dear all I need to concatenate several variables with similar name. For example: T=cat(3,SPL_A,SPL_B,SPL_C,SPL_D,SPL_E). Th...

6 mesi ago | 2 answers | 0

2

answers

Question


Percentile calculation along time
Dear all, I have a time series analysis in which i should calculate its percentiles. Let me explain: I have 5 matrices (A,B,C...

6 mesi ago | 1 answer | 0

1

answer

Question


Deleted files generated with matlab keep occupying space in the hard drive and I can't locate them
Dear all, I have a tricky question regarding deleting files using matlab. Let me explain. I created a program that generates ...

6 mesi ago | 1 answer | 0

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answer

Question


Moving point along a rectangular path
Dear all, I would like create a point that moves along a path (as in the figure) knowing only the initial and the final positio...

7 mesi ago | 1 answer | 0

1

answer

Question


Implementing a seismic source
Dear all, I'm a new matlab user and I need to create a seismic pulse which the emitting source is moving (time dependent). I h...

7 mesi ago | 0 answers | 0

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answers

Question


Problem doing plots using contour with NaN elements in a matrix
Dear all, I have 3 matrices: lon, lat, depth. Than I want to remove all the depth values that are bigger than 0. To do so I us...

10 mesi ago | 0 answers | 0

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answers

Question


Sum overlapping region using surf
Dear all, I'm new in matlab and i'm doing some difficult stuff I guess... I have 9 matrix (x1,y1,tl1, x2,y2,tl2 and x3,y3,tl3)...

10 mesi ago | 0 answers | 0

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Question


Density maps based on the number of occurences
Hello dear all, I'm trying to create a density map based on the ships distribution along the time in latitude and longitude coo...

11 mesi ago | 0 answers | 0

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Question


How to create a function that do not require all the input paramenters
Dear all, I'm quite new using matlab and I'm trying to create a function with +- 30 input parameters. Then, when I call the fun...

circa un anno ago | 1 answer | 0

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Question


How can I pass a variable between a m-file and another m-file that runs a gui?
Hello, I'm trying to pass a variable between one m-file and another m-file that initiates gui. More specifically: I have one ...

circa un anno ago | 1 answer | 0

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Question


Passing varibales between two callback in GUI
Dear all, I really need your help. I'm new using Gui and I'm trying to use one variable in one callback that was calculated p...

circa un anno ago | 1 answer | 0

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Question


Order h5 file hierarchy
Hello, I'm trying to create a h5 file to exchange data. I already create the structure but when I type "h5disp('xxx.h5')" the ...

oltre un anno ago | 0 answers | 0

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Question


Calculate Equivalente Continuous Sound Level
Dear all, I'm new coding with matlab and I'm trying to calculate some sound quantities and I'm experiencing some difficulties c...

oltre un anno ago | 0 answers | 0

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Question


How can I write a variable which datatype is a string in netcdf file
Hello, Im new using Netcdf files. I need to write a variable which is a string in a netcdf file. I tryied this: nccreate(file...

oltre un anno ago | 1 answer | 0

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