Answered
Colorbar in colormap with labels
There range in your plotted values are 2-10, and the colorscale is per default scaled so that the maximum (10) and minimum (2) a...

environ un an ago | 2

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Show temperature differences in a dataset
Here you can see the difference between minimum and maximum taken over the 3rd dimension, which I can only assume is time? ...

environ un an ago | 0

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question on months&days in 2012
Now that you've basically solved it, here is my (hopefully correct) solution. Note that for scalars you can write && instead of ...

environ un an ago | 0

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Answered
datenum to UTC?
Yes, use datetime instead of datenum. t = datetime('10-Oct-2013 15:59:00','timezone','-04:00') t_unix = posixtime(t)...

environ un an ago | 0

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shifting time in timetable
Simply shifting the time without affecting the data TT.Time = dateshift(TT.Time,'start','day') Changing the format (hidi...

environ un an ago | 0

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Summary Statistics Table by group
You need to pass the table as input to *grpstats*. Assuming that *dsa* is a cell array with grouping variables, then change your...

environ un an ago | 0

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how to use imshow for this array?
It's not imshow but you could use imagesc instead imagesc(out_map) If you really want to use imshow, then B = mat2g...

environ un an ago | 1

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Answered
Generate data from a image plot with colour code as reference.
I'd approach this by the following steps. load image with axes and everything: I = imread('FileName.png'); imshow(I) ...

environ un an ago | 0

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Answered
exstract consecutive duplicate element of array
A is your matrix. This line removes duplicates: A([false diff(A)==0]) = []; Or you could expand it to this, given your v...

environ un an ago | 0

Answered
Subscript indices must either be real positive integers or logicals.
It's hard to tell without having some input, but these types of lines are definitely wrong: ra(2i)=1; *i* is being inter...

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Answered
Reading pixels of an image
Indexing works by going through the matrix column by column, so that would be (1,5) in your example. Don't be afraid to test thi...

environ un an ago | 1

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How would i display a matrix as a graph?
Here's a custom plot type I made. It may look upside down, but the value on the y-axis denotes the row number. The "peak value" ...

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Answered
Surface plot of vectors with x and y vectors as index
After meshgrid you need to interpolate. For example z = griddata(xx, yy, zz, x, y) Then you can plot surf(x, y, ...

environ un an ago | 0

Answered
Based on Column 3 values how to get specific column 1 values?
fid = fopen('sample.txt') out = textscan(fid,'%f%f%f','headerlines',1); fclose(fid) A = cell2mat(out); id0 = f...

environ un an ago | 1

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Answered
Draw a discontinuous line
Do not use indexed variable names. Build a 2xn matrix instead. x = 0.7000 1.8000 1.3000 2.2000 y = ...

environ un an ago | 0

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Answered
plotting colorcoded points on a map
Try this: scatterm(long_lat(:,2),long_lat(:,1),[],sen_s) I assume sen_s is the variable you want colorcoded. Adapt the c...

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Answered
Plot of maximum value of chosen column in matrix
In this case you could simply find the max in each column in one go [vm,idx] = max(M); %maximum of each column plot(t,M); ...

environ un an ago | 0

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Help to understand Matlab code
[m n ~] = size(im) ~ basically means "omit this output", and is totally useless in this context. It is useful in other case...

environ un an ago | 1

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Answered
how to find time difference between 2 times , in milliseconds.
Just work with duration format. t={'18:42:45.813' '18:42:46.028' '18:42:46.139' '18:42:46.359' '18:42:46.463' ...

environ un an ago | 1

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Answered
Seperate the data of a table
Just use logical indexing T{strcmp(T{:,1},'Fossil Gas'),end} The line strcmp(T{:,1},'Fossil Gas') returns a logi...

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Answered
Plot of confidence interval with fill
Nothing wrong, you just happen to have very narrow confidence bounds. <</matlabcentral/answers/uploaded_files/137818/untitle...

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Answered
How to make a scatterplot
Let Y be your matrix with data, you can simply make a scatterplot like this: x = 61:70; h = plot(x,Y,'bo','markerfaceco...

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Answered
how to read .dat file using txtscan ?
You can use readtable since the data is tabular. T = readtable('AE33_AE33-S02-00184_20170102.dat','headerlines',8) ...g...

environ un an ago | 1

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Answered
How to make a 2-D colormap with coordinates
Use a surface object surf(lon, lat, z) The data must be gridded, so you may have grid the data like this [LON,LAT]...

environ un an ago | 0

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Squared heatmap with random transition; animation
You could also use scatter with a superlarge markersize. figure; colormap([1 1 1;1 1 0;1 0 0;0 0 1;0 1 0]); [...

environ un an ago | 1

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Answered
how could avoid too have loop in big data
You can use findgroups/splitapply or put the data in a table and use varfun or grpstats. Upload some data if you need code. ...

environ un an ago | 1

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Answered
How to make a graph that shows evolution of a variable in time through different depths in a lake.
Just create a surface object. d = is your depth (1x38) t = is your time (1x3705) Te = is your temperature (3705...

environ un an ago | 0

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Answered
How can make arrows into the line step by step?
What you see on the figure is a quiver3 plot, where the arrows describe velocity. You did not provide any velocity data, but you...

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how to handle variable time stamped long time series data?
# Load data # Put data in two timetables # Use synchronize # Step 1-3 did not work? Upload the data.

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Answered
colour map scatter with multiple groups / variables
I would probably just create a new axes for each new scatter object. Each object then scales automatically and the same method w...

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