Answered

Colour plot vs Time on a circle

It's not clear to me whether you've already created the circle plots in Matlab, or if you just sketched out your desire outcome....

Colour plot vs Time on a circle

It's not clear to me whether you've already created the circle plots in Matlab, or if you just sketched out your desire outcome....

1 year ago | 1

Answered

Contourf is plotting weird lines. How to remove them?

When you let contour choose contour levels automatically, it doesn't always choose the levels you really want. In this case, it...

Contourf is plotting weird lines. How to remove them?

When you let contour choose contour levels automatically, it doesn't always choose the levels you really want. In this case, it...

1 year ago | 3

| accepted

Answered

How can I make following part of code without for loop?

I'm having a hard time finding a solution that's faster than the original loop... % Build test data n_values = 10000; nc =...

How can I make following part of code without for loop?

I'm having a hard time finding a solution that's faster than the original loop... % Build test data n_values = 10000; nc =...

1 year ago | 0

| accepted

Answered

how to get the value in julian date and time

Can you explain what you're defining as "Julian date"? While the 4714 BCE reference date is the proper one for a real Julian da...

how to get the value in julian date and time

Can you explain what you're defining as "Julian date"? While the 4714 BCE reference date is the proper one for a real Julian da...

1 year ago | 1

| accepted

Answered

change y values in figure to names

You need to calculate where each month falls, in terms of hours: ttk = datetime(2019,1:13,1); set(gca, 'xtick', hours(ttk-da...

change y values in figure to names

You need to calculate where each month falls, in terms of hours: ttk = datetime(2019,1:13,1); set(gca, 'xtick', hours(ttk-da...

1 year ago | 3

| accepted

Answered

Is it possible to bring "grid on" to the front of a figure?

By default, all plotted objects are rendered on top of the axis (including axis lines, grid lines, etc). You can reverse that b...

Is it possible to bring "grid on" to the front of a figure?

By default, all plotted objects are rendered on top of the axis (including axis lines, grid lines, etc). You can reverse that b...

1 year ago | 3

| accepted

Answered

How to remove border line of a circle graph

set(gca, 'visible', 'off'); or axis off;

How to remove border line of a circle graph

set(gca, 'visible', 'off'); or axis off;

1 year ago | 1

| accepted

Answered

preserving the absolute location of an annotation after changing axis limits, or typing 'axis square'

You might want to try my line2arrow function; it allows you to an an arrowhead to a line (plotted with normal axis coordinates),...

preserving the absolute location of an annotation after changing axis limits, or typing 'axis square'

You might want to try my line2arrow function; it allows you to an an arrowhead to a line (plotted with normal axis coordinates),...

1 year ago | 0

| accepted

Answered

World coordinates XY scale

The imshow function automatically sets the DataAspectRatio to be [1 1 1], i.e. the same effect as axis equal. To undo this, set...

World coordinates XY scale

The imshow function automatically sets the DataAspectRatio to be [1 1 1], i.e. the same effect as axis equal. To undo this, set...

1 year ago | 1

| accepted

Answered

Counting how many times a number occured after a specific number

This is a good use case for accumarray: S = [ 3 2 2 4 3 1]; [seq, ~, g] = unique([S(1:end-1)' S(2:end)'], 'rows'); n = ...

Counting how many times a number occured after a specific number

This is a good use case for accumarray: S = [ 3 2 2 4 3 1]; [seq, ~, g] = unique([S(1:end-1)' S(2:end)'], 'rows'); n = ...

1 year ago | 2

| accepted

Answered

How do I extract the HH:MM:SS.FFF portion of a julian day time stamp?

An alternative method that avoids regular expressions would be to let datetime to the parsing for you: Data_Time_Stamp_Cells = ...

How do I extract the HH:MM:SS.FFF portion of a julian day time stamp?

An alternative method that avoids regular expressions would be to let datetime to the parsing for you: Data_Time_Stamp_Cells = ...

1 year ago | 1

Answered

Unstack - How to break a table into equal chunks of data?

I usually just use splitapply for this sort of thing. (And the kron trick is a nice one for generating repeating blocks of numb...

Unstack - How to break a table into equal chunks of data?

I usually just use splitapply for this sort of thing. (And the kron trick is a nice one for generating repeating blocks of numb...

1 year ago | 1

Answered

Plotting with four y-axes in the same figure, with multiple datasets against one of the y-axes

While there are a lot of FEX options out there, I really think it's easier to manually control things once you start playing aro...

Plotting with four y-axes in the same figure, with multiple datasets against one of the y-axes

While there are a lot of FEX options out there, I really think it's easier to manually control things once you start playing aro...

1 year ago | 2

| accepted

Answered

How do I create a 2d surface plot for a function of x and y?

Change fxy = sin(x).*cos(y) to fxy = sin(xm).*cos(ym)

How do I create a 2d surface plot for a function of x and y?

Change fxy = sin(x).*cos(y) to fxy = sin(xm).*cos(ym)

1 year ago | 1

Answered

Plotting contourf with discrete x axis

The contour function always assumes your input data are points on a surface that can be linearly interpolated between. To get a...

Plotting contourf with discrete x axis

The contour function always assumes your input data are points on a surface that can be linearly interpolated between. To get a...

1 year ago | 1

| accepted

Answered

what does the string #ok<NASGU> mean in the code editior

That code disables the Code Analyzer from suggesting changes to the syntax. Specifically, <NASGU> refers the the ID associated ...

what does the string #ok<NASGU> mean in the code editior

That code disables the Code Analyzer from suggesting changes to the syntax. Specifically, <NASGU> refers the the ID associated ...

2 years ago | 1

Answered

How to combine all columns of an array into one column?

Are the values in A always going to be less than 10? If not, what answer do you want? I see two possibilities; treat each valu...

How to combine all columns of an array into one column?

Are the values in A always going to be less than 10? If not, what answer do you want? I see two possibilities; treat each valu...

2 years ago | 0

Answered

(mapping toolbox) Map axes xdata, ydata and zdata meaning?

Map axes apply a geographic transform to convert the geographic coordinates to the projection used by the map axis. You can per...

(mapping toolbox) Map axes xdata, ydata and zdata meaning?

Map axes apply a geographic transform to convert the geographic coordinates to the projection used by the map axis. You can per...

2 years ago | 2

| accepted

Answered

cut out section of x axis

Rather than shifting data and manually overriding tick labels, I prefer to use multiple axes to achieve breaks like this. The a...

cut out section of x axis

Rather than shifting data and manually overriding tick labels, I prefer to use multiple axes to achieve breaks like this. The a...

2 years ago | 4

Answered

Plotting X, Y cordintions with a line short line that indicates the angle

With quiver, the u and v arguments represent the horizontal and vertical components of the arrow you want to draw. You can calc...

Plotting X, Y cordintions with a line short line that indicates the angle

With quiver, the u and v arguments represent the horizontal and vertical components of the arrow you want to draw. You can calc...

2 years ago | 1

| accepted

Answered

How can I assign several values from cell-array tovariables?

I think you'll need to use a quick intermediate variable so you can convert the numeric array to a comma-separated list: tmp = ...

How can I assign several values from cell-array tovariables?

I think you'll need to use a quick intermediate variable so you can convert the numeric array to a comma-separated list: tmp = ...

2 years ago | 1

| accepted

Answered

How to use animated line

A couple notes here... First, plotting a graph object creates a GraphPlot object, not a line, so it can't be used (out of the b...

How to use animated line

A couple notes here... First, plotting a graph object creates a GraphPlot object, not a line, so it can't be used (out of the b...

2 years ago | 1

| accepted

Answered

Creating a graph with both descending and ascending x-axis and one y-axis

Does this do approximately what you want? ax(1) = axes('position', [0.1 0.1 0.4 0.8], 'box', 'off', 'yaxisloc', 'left', 'xdir',...

Creating a graph with both descending and ascending x-axis and one y-axis

Does this do approximately what you want? ax(1) = axes('position', [0.1 0.1 0.4 0.8], 'box', 'off', 'yaxisloc', 'left', 'xdir',...

2 years ago | 1

| accepted

Answered

Colour range in a surfplot

By default, a surf plot uses faceted shading, which means that each face is a solid color, determined by a single vertex in that...

Colour range in a surfplot

By default, a surf plot uses faceted shading, which means that each face is a solid color, determined by a single vertex in that...

2 years ago | 5

| accepted

Answered

How to change the origin from (0,0) to different coordinates in a plot

You don't need to move the axis; you need to provide x-values for your data. Right now, you're using the ydata-only option for ...

How to change the origin from (0,0) to different coordinates in a plot

You don't need to move the axis; you need to provide x-values for your data. Right now, you're using the ydata-only option for ...

2 years ago | 0

Answered

I got "The expression to the left of the equals sign is not a valid target for an assignment."

As others have pointed out, i is already assigned the value you want by default. But assuming it weren't, the proper way to ass...

I got "The expression to the left of the equals sign is not a valid target for an assignment."

As others have pointed out, i is already assigned the value you want by default. But assuming it weren't, the proper way to ass...

2 years ago | 0

Answered

Create a Matrix with Specific Pattern for Changing Values

Create a grid of values, then unwrap: xval = [-3*pi/4 -3*pi/8 0]; [a,b,c] = ndgrid(x,x,x); x = [c(:) b(:) a(:)]

Create a Matrix with Specific Pattern for Changing Values

Create a grid of values, then unwrap: xval = [-3*pi/4 -3*pi/8 0]; [a,b,c] = ndgrid(x,x,x); x = [c(:) b(:) a(:)]

2 years ago | 0

Answered

How do I insert multiple vectors as diagonals in the same matrix?

You're close... you just need to add the matrices together: A = diag(v,1) + diag(v,-1) + diag(v1,0)

How do I insert multiple vectors as diagonals in the same matrix?

You're close... you just need to add the matrices together: A = diag(v,1) + diag(v,-1) + diag(v1,0)

2 years ago | 0

| accepted

Answered

How to concentrate matrices of different row length (same column length) into one matrix by unfolding each of the matrices to the smallest row length conatining numbers not nan

Do any of your matrices have non-trailing blank/all-NaN lines that you want to preserve? Or are you just trying to strip out th...

How to concentrate matrices of different row length (same column length) into one matrix by unfolding each of the matrices to the smallest row length conatining numbers not nan

Do any of your matrices have non-trailing blank/all-NaN lines that you want to preserve? Or are you just trying to strip out th...

2 years ago | 2

Answered

find the shortest path

Take a look at graph and digraph objects; the shortestpath function provides several different algorithms to calculate this for ...

find the shortest path

Take a look at graph and digraph objects; the shortestpath function provides several different algorithms to calculate this for ...

2 years ago | 2