Answered

How can I polar plot in decibels?

If you have a recent version of Matlab (R2016a or later), you can use polaraxes/polarplot to get much more flexibility in settin...

How can I polar plot in decibels?

If you have a recent version of Matlab (R2016a or later), you can use polaraxes/polarplot to get much more flexibility in settin...

1 year ago | 1

| accepted

Answered

How to get the order indices in a character array?

c = {... 'x_air' 'v_air' 'p_headspace' 'p_environment' ...

How to get the order indices in a character array?

c = {... 'x_air' 'v_air' 'p_headspace' 'p_environment' ...

1 year ago | 4

| accepted

Answered

What is this stack trace and what can I do to avoid it?

This isn't really an answer to the why of the question, but I can agree that this is a common problem (in my experience, at leas...

What is this stack trace and what can I do to avoid it?

This isn't really an answer to the why of the question, but I can agree that this is a common problem (in my experience, at leas...

1 year ago | 0

Answered

How to plot temporal changes in batches of data?

Assuming your file is read into a table array, I think the quickest way to do this is to unstack the SSID data and then plot: ...

How to plot temporal changes in batches of data?

Assuming your file is read into a table array, I think the quickest way to do this is to unstack the SSID data and then plot: ...

1 year ago | 1

Answered

Is the upper limit of a color bar the true maximum value of the data in the color map, or is it larger ?

The color limits are usually set to match the plotted data for most standard functions (pcolor, surf, imagesc, etc), although th...

Is the upper limit of a color bar the true maximum value of the data in the color map, or is it larger ?

The color limits are usually set to match the plotted data for most standard functions (pcolor, surf, imagesc, etc), although th...

1 year ago | 0

| accepted

Submitted

Divided edge bundling in Matlab

Calculate and plot graph divided edge bundle pathways for directional network graphs

1 year ago | 1 download |

Answered

Is there a function to identify whether polylines are located inside a polygonal region?

You can try out my <https://github.com/kakearney/lineinpolygon-pkg lineinpolygon.m> function. (Sorry, the GitHub repo doesn't h...

Is there a function to identify whether polylines are located inside a polygonal region?

You can try out my <https://github.com/kakearney/lineinpolygon-pkg lineinpolygon.m> function. (Sorry, the GitHub repo doesn't h...

1 year ago | 1

| accepted

Answered

seimlogx not working in an iteration

The |hold on| command is the culprit... you're issuing it before you plot, so the linear axis is being held throughout. If you ...

seimlogx not working in an iteration

The |hold on| command is the culprit... you're issuing it before you plot, so the linear axis is being held throughout. If you ...

1 year ago | 1

| accepted

Submitted

ecopath_matlab: A Matlab implementation of Ecopath

Reproduces the main mass-balance algorithm from the popular ecosystem modeling tool, Ecopath

1 year ago | 2 downloads |

Answered

How to avoid white patch in contourf ?

Matlab's |contourf| function doesn't actually plot contour faces for lower-than-lowest-clevel regions when are unenclosed. (And...

How to avoid white patch in contourf ?

Matlab's |contourf| function doesn't actually plot contour faces for lower-than-lowest-clevel regions when are unenclosed. (And...

1 year ago | 2

Answered

How can I quickly find the intersections between many individual line segments and a polygon?

Is your polygon always convex? If so, you can do the ray extension from each polygon vertex in all directions at once, and assu...

How can I quickly find the intersections between many individual line segments and a polygon?

Is your polygon always convex? If so, you can do the ray extension from each polygon vertex in all directions at once, and assu...

1 year ago | 1

| accepted

Answered

Insert specific number of rows of zeroes(5) after every 56 rows in my n*m matrix. I am able to create matrices but can I do the insertion without loop given I know the size of matrix? Thanks for help

Another approach, which works even if your data doesn't divide evenly: x = rand(21,6); nrow = 5; % number of ro...

Insert specific number of rows of zeroes(5) after every 56 rows in my n*m matrix. I am able to create matrices but can I do the insertion without loop given I know the size of matrix? Thanks for help

Another approach, which works even if your data doesn't divide evenly: x = rand(21,6); nrow = 5; % number of ro...

1 year ago | 0

| accepted

Answered

gscatter: connecting groups by lines through this function

The |gscatter| function already plots the data as line objects... you just need to add a visible line style: h = gscatter(....

gscatter: connecting groups by lines through this function

The |gscatter| function already plots the data as line objects... you just need to add a visible line style: h = gscatter(....

1 year ago | 1

Answered

Legend not showing markers

I've found that legends can sometimes benefit from taking a deep breath. Not sure exactly why, but it seems that since the intr...

Legend not showing markers

I've found that legends can sometimes benefit from taking a deep breath. Not sure exactly why, but it seems that since the intr...

1 year ago | 2

Answered

Why is an empty string not empty? isempty('') returns true, but isempty("") returns false

I think string arrays function more like cell arrays in this context... the first element of the string itself isn't empty, but ...

Why is an empty string not empty? isempty('') returns true, but isempty("") returns false

I think string arrays function more like cell arrays in this context... the first element of the string itself isn't empty, but ...

1 year ago | 2

Answered

Given the location (coordinates) of a point in a gridmesh, how can I extract the number of the grid that the point is located in?

You can use the |discretize| function to bin points: nx = 2; ny = 2; xedge = linspace(0,1,nx+1); yedge = lin...

Given the location (coordinates) of a point in a gridmesh, how can I extract the number of the grid that the point is located in?

You can use the |discretize| function to bin points: nx = 2; ny = 2; xedge = linspace(0,1,nx+1); yedge = lin...

1 year ago | 3

| accepted

Answered

Stretch parts of axis (non uniform axis)

You could scale the data appropriately and then overwrite the tick labels, but assuming you only have a few scaling blocks, I of...

Stretch parts of axis (non uniform axis)

You could scale the data appropriately and then overwrite the tick labels, but assuming you only have a few scaling blocks, I of...

1 year ago | 1

Answered

How to index a matrix using the ITERATION values of a valArray with non-consecutive numbers?

There are two ways you could do this. One is to use an index value corresponding to the length of your |s| values: s = [12...

How to index a matrix using the ITERATION values of a valArray with non-consecutive numbers?

There are two ways you could do this. One is to use an index value corresponding to the length of your |s| values: s = [12...

1 year ago | 0

| accepted

Answered

Finding corresponding x value for second graph

Best guess, seeing that I can't see what your myode45function returns... It looks like your |y| matrix has at least 2 columns. ...

Finding corresponding x value for second graph

Best guess, seeing that I can't see what your myode45function returns... It looks like your |y| matrix has at least 2 columns. ...

1 year ago | 0

Answered

Find unique in matrix of x,y coordinates

To find unique rows, you can use |unique| with the |'rows'| option. (The |'stable'| option preserves the input order, if that's...

Find unique in matrix of x,y coordinates

To find unique rows, you can use |unique| with the |'rows'| option. (The |'stable'| option preserves the input order, if that's...

1 year ago | 1

| accepted

Answered

I'm trying to sort one vector based on another vector of seemingly the same size, but i keep getting the index exceeds matrix dimensions error. What's the issue?

I'm pretty sure there a couple things in here that aren't working like you'd like them to. First, in you capital function, t...

I'm trying to sort one vector based on another vector of seemingly the same size, but i keep getting the index exceeds matrix dimensions error. What's the issue?

I'm pretty sure there a couple things in here that aren't working like you'd like them to. First, in you capital function, t...

1 year ago | 0

Answered

Lines of longitude. How to merge points?

Assuming this is a first step in mapping something a bit more complicated, I'd suggest using an existing mapping toolbox rather ...

Lines of longitude. How to merge points?

Assuming this is a first step in mapping something a bit more complicated, I'd suggest using an existing mapping toolbox rather ...

1 year ago | 1

| accepted

Answered

search through an array for patterns and put into cell arrays.

This sort of problem can usually be solved by using a various combinations of |diff|: A = [ 1 2 3 78 28 92 1 76 89 90 23 87...

search through an array for patterns and put into cell arrays.

This sort of problem can usually be solved by using a various combinations of |diff|: A = [ 1 2 3 78 28 92 1 76 89 90 23 87...

1 year ago | 1

| accepted

Answered

Using Worldmap function to develop maps

When you say "shape of the map", do you mean you want higher resolution coastlines? If so, there are many places to download hi...

Using Worldmap function to develop maps

When you say "shape of the map", do you mean you want higher resolution coastlines? If so, there are many places to download hi...

1 year ago | 1

Answered

Kriging codes in matlab

Walter's answer links to the best toolbox that I know of for kriging in Matlab. However, if you really want to use the gstat me...

Kriging codes in matlab

Walter's answer links to the best toolbox that I know of for kriging in Matlab. However, if you really want to use the gstat me...

1 year ago | 2

| accepted

Answered

How to create array of linearly spaced values from starting and ending points

This method is faster than looping over linspace: x = linspace(0,1,nPoints); A2 = go + x.*(st - go); Here's a timing ...

How to create array of linearly spaced values from starting and ending points

This method is faster than looping over linspace: x = linspace(0,1,nPoints); A2 = go + x.*(st - go); Here's a timing ...

1 year ago | 2

| accepted

Answered

How to make pcolor plot from three vector

You can calculate the bin averages pretty quickly using |discretize| and |accumarray|: Some sample data: npt = 10000; ...

How to make pcolor plot from three vector

You can calculate the bin averages pretty quickly using |discretize| and |accumarray|: Some sample data: npt = 10000; ...

2 years ago | 1

| accepted

Answered

How to take an average over one month during different years ?

A bit hard to tell from your screenshot whether your time array is an array of datetimes or an array of date strings. Assuming ...

How to take an average over one month during different years ?

A bit hard to tell from your screenshot whether your time array is an array of datetimes or an array of date strings. Assuming ...

2 years ago | 0

| accepted

Submitted

boundedline.m

Plot one or more lines with a shaded boundary (can represent error, confidence intervals, etc).

2 years ago | 311 downloads |

Answered

Function to read a 16bit color composite image to matlab

Many years ago, I had to work with some 16-bit color avi files. Those files stored the RGB color data using 16 bits per pixel: 5...

Function to read a 16bit color composite image to matlab

Many years ago, I had to work with some 16-bit color avi files. Those files stored the RGB color data using 16 bits per pixel: 5...

2 years ago | 0