已回答
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? ...

6 years 前 | 0

| 已接受

已回答
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 ...

6 years 前 | 0

| 已接受

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

6 years 前 | 0

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

6 years 前 | 0

已回答
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...

6 years 前 | 0

已回答
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...

6 years 前 | 1

| 已接受

已回答
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) ...

6 years 前 | 0

| 已接受

已回答
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...

6 years 前 | 0

已回答
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...

6 years 前 | 0

| 已接受

已回答
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...

6 years 前 | 1

已回答
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" ...

6 years 前 | 0

| 已接受

已回答
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, ...

6 years 前 | 0

已回答
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...

6 years 前 | 1

| 已接受

已回答
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 = ...

6 years 前 | 0

| 已接受

已回答
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...

6 years 前 | 0

| 已接受

已回答
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); ...

6 years 前 | 0

已回答
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...

6 years 前 | 1

| 已接受

已回答
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' ...

6 years 前 | 1

| 已接受

已回答
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...

6 years 前 | 0

| 已接受

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

6 years 前 | 0

| 已接受

已回答
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...

6 years 前 | 0

| 已接受

已回答
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...

6 years 前 | 1

| 已接受

已回答
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]...

6 years 前 | 1

已回答
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]); [...

6 years 前 | 1

| 已接受

已回答
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. ...

6 years 前 | 1

| 已接受

已回答
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...

6 years 前 | 0

| 已接受

已回答
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...

6 years 前 | 0

| 已接受

已回答
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.

6 years 前 | 1

| 已接受

已回答
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...

6 years 前 | 0

| 已接受

已回答
Interpolate gridded matrix row-wise
Normally you could achieve this easily by interpolating over rows with a function that does not extrapolate by default. I believ...

6 years 前 | 0

| 已接受

加载更多