Email: feel free to contact me regarding my shared files on the file exchange. I don't do free consulting outside of the forum so if you have a Matlab question, post the question to the forum and you may email me the link to the question.

About me: Finishing PhD soon on topics related to vision science; neurophysiology; sensory-motor feedback and control; control systems; steering & navigation; multisensory integration; top-down bottom-up feedback loop.

"If I had only one hour to save the world, I would spend fifty-five minutes defining the problem, and only five minutes finding the solution." -Albert Einstein

"An expert is a person who has made all the mistakes that can be made in a very narrow field." -Niels Bohr

"If you are not embarrassed by the first version of your product, you've launched too late" - Reid Hoffman

Answered

Plotting only the year of a column vector with full date

Use xtickformat or datetick dt = datetime(1999,01,01) + days(1:100:5000); y = rand(size(dt)); ax = gca(); plot(dt,y) ...

Plotting only the year of a column vector with full date

Use xtickformat or datetick dt = datetime(1999,01,01) + days(1:100:5000); y = rand(size(dt)); ax = gca(); plot(dt,y) ...

2 hours ago | 0

Answered

what is the value for L2 regularization coeff, by default,while training?

I think you're looking for the L2Regularization Solver Option.

what is the value for L2 regularization coeff, by default,while training?

I think you're looking for the L2Regularization Solver Option.

3 hours ago | 0

Answered

how to make intervals in a bar graph

For continuous intervals Since your intervals are continuous, you should be using histogram() instead of bar(). histogram('Bi...

how to make intervals in a bar graph

For continuous intervals Since your intervals are continuous, you should be using histogram() instead of bar(). histogram('Bi...

4 hours ago | 0

Answered

Does Ctrl+C interrupt after executing all commands in a line?

Q1 & Q2 & Q3: No. If ctrl+c is pressed before that line is executed or perhaps even while that line is executed it will be int...

Does Ctrl+C interrupt after executing all commands in a line?

Q1 & Q2 & Q3: No. If ctrl+c is pressed before that line is executed or perhaps even while that line is executed it will be int...

7 hours ago | 0

Answered

change the lines' widths in a stem plot, without changing the markers edges widths?

Method 1: Set markers separately x = 1:10; y = [2 5 4 1 2 4 1 8 1 2]; figure() stem(x,y,'b-','LineWidth',3,'Marker','none') ...

change the lines' widths in a stem plot, without changing the markers edges widths?

Method 1: Set markers separately x = 1:10; y = [2 5 4 1 2 4 1 8 1 2]; figure() stem(x,y,'b-','LineWidth',3,'Marker','none') ...

8 hours ago | 0

Answered

Error using table2array -- Input argument must be a table.

I don't see a question. Apparently app.UITable.Data isn't a table. This can happen when the data are from the same class. In...

Error using table2array -- Input argument must be a table.

I don't see a question. Apparently app.UITable.Data isn't a table. This can happen when the data are from the same class. In...

12 hours ago | 0

Answered

how to assign colour to a double plot by clicking on graph in UIAxes appdesinger Matlab (R2020a)?

Line color can be changed when the figure is in Edit-plot mode by right-clicking on the line which shows the lines context menu ...

how to assign colour to a double plot by clicking on graph in UIAxes appdesinger Matlab (R2020a)?

Line color can be changed when the figure is in Edit-plot mode by right-clicking on the line which shows the lines context menu ...

1 day ago | 0

Answered

x-axis error when adjusting axis label

What appears to be x-ticks in the compact boxplot are really text labels that are a member of an hggroup along with the boxplot ...

x-axis error when adjusting axis label

What appears to be x-ticks in the compact boxplot are really text labels that are a member of an hggroup along with the boxplot ...

1 day ago | 0

| accepted

Answered

Capturing and Saving an image of a running using code in Matlab's Appdesigner

Staring in Matlab r2020b, the exportapp() function saves an image of your app or uifigure. See this Community Highlight for a...

Capturing and Saving an image of a running using code in Matlab's Appdesigner

Staring in Matlab r2020b, the exportapp() function saves an image of your app or uifigure. See this Community Highlight for a...

2 days ago | 0

Answered

Analysing the user's input to see if it's a number or not

"inputs had to be integers/real numbers and that the start time had to be smaller than the stop time with the increment being ap...

Analysing the user's input to see if it's a number or not

"inputs had to be integers/real numbers and that the start time had to be smaller than the stop time with the increment being ap...

2 days ago | 0

Answered

How to switch the position and values of X and Y axes?

"I need to switch the position and values of X and Y axes in plotting colormaps" Do you mean instead of imagesc(x,y,c) you want...

How to switch the position and values of X and Y axes?

"I need to switch the position and values of X and Y axes in plotting colormaps" Do you mean instead of imagesc(x,y,c) you want...

2 days ago | 0

| accepted

Answered

How to specify input arguments of a structure in a 'for' loop separate to field argument

This is why long lines of code should be broken up into separate lines. resultsMatrix = struct('TrialOrder', {}, 'TrialType', ...

How to specify input arguments of a structure in a 'for' loop separate to field argument

This is why long lines of code should be broken up into separate lines. resultsMatrix = struct('TrialOrder', {}, 'TrialType', ...

2 days ago | 0

| accepted

Answered

How do I understand the following code?

The best way to understand it is by using the help or doc commands to look up each function name. At the top of each page you'l...

How do I understand the following code?

The best way to understand it is by using the help or doc commands to look up each function name. At the top of each page you'l...

2 days ago | 0

Answered

How can I add a joining line between each iteration loop of scatter points

>How can I add a joining line between each iteration loop of scatter points Use plot3() instead of scatter3(). For example, ...

How can I add a joining line between each iteration loop of scatter points

>How can I add a joining line between each iteration loop of scatter points Use plot3() instead of scatter3(). For example, ...

2 days ago | 0

Answered

convert Julian Date to yyyy-mm-dd

Are you looking for this? datetime(25856,'convertfrom','juliandate','Format','yyy-MM-dd') which makes sense given, datetime(0...

convert Julian Date to yyyy-mm-dd

Are you looking for this? datetime(25856,'convertfrom','juliandate','Format','yyy-MM-dd') which makes sense given, datetime(0...

2 days ago | 0

Answered

How to open a window after pushing a button

Check out the description for the ButtonPushedFcn in uibuttons. https://www.mathworks.com/help/matlab/ref/matlab.ui.control....

How to open a window after pushing a button

Check out the description for the ButtonPushedFcn in uibuttons. https://www.mathworks.com/help/matlab/ref/matlab.ui.control....

4 days ago | 0

Answered

If statement with multiple variables, or if the variables can be shortened.

if 0.6<=a && 0.6<=b && 0.6<=c && 0.6<=d && a<.10 && b<.10 && c<.10 && d<.10 dime = 1; end or if all(0.6 < [a,b,c,d]) && ...

If statement with multiple variables, or if the variables can be shortened.

if 0.6<=a && 0.6<=b && 0.6<=c && 0.6<=d && a<.10 && b<.10 && c<.10 && d<.10 dime = 1; end or if all(0.6 < [a,b,c,d]) && ...

4 days ago | 0

| accepted

Answered

Can we Assign "Z Axis" 'Label' and 'Range' to UIAxes in matlab appdesigner (R2020a)

The z axis is the 3rd dimension but your plot is 2D. You yyaxis to assign an independent label to the right y-axis. Then link ...

Can we Assign "Z Axis" 'Label' and 'Range' to UIAxes in matlab appdesigner (R2020a)

The z axis is the 3rd dimension but your plot is 2D. You yyaxis to assign an independent label to the right y-axis. Then link ...

4 days ago | 1

| accepted

Answered

left side are not compatible with the size of the right side.

Your cramer function defines b as b=[]; The loop within that function tries to store the empty value of b in B(:,i) which is ...

left side are not compatible with the size of the right side.

Your cramer function defines b as b=[]; The loop within that function tries to store the empty value of b in B(:,i) which is ...

4 days ago | 0

Answered

How do I plot multiple lines of best fit on a scatter plot?

See inline comments for changes. The most significant change is using refline() to plot the regression lines based on the fits....

How do I plot multiple lines of best fit on a scatter plot?

See inline comments for changes. The most significant change is using refline() to plot the regression lines based on the fits....

4 days ago | 1

| accepted

Answered

Legend does not have the right color every two plots.

"Legend does not have the right color every two plots" That's because you're adding two lines on each iteration of your loop. ...

Legend does not have the right color every two plots.

"Legend does not have the right color every two plots" That's because you're adding two lines on each iteration of your loop. ...

4 days ago | 1

| accepted

Answered

Problem with feedforwardnet function: not enough input arguments

Going all the way back to Matlab r2015b (the earliest version that provides access to documentation), feedforwardnet has always ...

Problem with feedforwardnet function: not enough input arguments

Going all the way back to Matlab r2015b (the earliest version that provides access to documentation), feedforwardnet has always ...

4 days ago | 0

Answered

Making consecutive 1s and 0s as a seperate element

a = [1 0 0 0 1 1 1 1 0 1]; consecGroups = findgroups(cumsum([true, diff(a)~=0])); b = arrayfun(@(g){a(consecGroups==g)},1:max(...

Making consecutive 1s and 0s as a seperate element

a = [1 0 0 0 1 1 1 1 0 1]; consecGroups = findgroups(cumsum([true, diff(a)~=0])); b = arrayfun(@(g){a(consecGroups==g)},1:max(...

4 days ago | 0

Answered

Line selection if the temperature difference does not change?

"sometimes when it is 0.01 it show 1 and sometimes 0" This is likely due to round-off error. For example, x = 0.01000001 x ...

Line selection if the temperature difference does not change?

"sometimes when it is 0.01 it show 1 and sometimes 0" This is likely due to round-off error. For example, x = 0.01000001 x ...

4 days ago | 0

| accepted

Answered

How to link functionality of Plot "Linewidth" with Knobvalue in appdesigner Matlab (R2020a)

It looks like you're using a discrete knob which returns a character vector in its 'value' property. Here are some options. 1...

How to link functionality of Plot "Linewidth" with Knobvalue in appdesigner Matlab (R2020a)

It looks like you're using a discrete knob which returns a character vector in its 'value' property. Here are some options. 1...

4 days ago | 0

| accepted

Answered

why i am getting the error "Index exceeds the number of array elements (1)" in my code? i am getting the error in line 33.

From you code, p = 0.07; p has 1 value, size (1,1). In the loop below, when j>1 you're getting the indexing error because p...

why i am getting the error "Index exceeds the number of array elements (1)" in my code? i am getting the error in line 33.

From you code, p = 0.07; p has 1 value, size (1,1). In the loop below, when j>1 you're getting the indexing error because p...

5 days ago | 0

Answered

How to add custom Yaxis option for UIAxes via Editfield(Numeric) while plotting in matlab appdesigner (Ver 2020a)

ymin = app.YAxisMinValueEditField.Value; ymax = app.YAxisMaxValueEditField.Value; % I'm guessing this handle ylim(app.UIAxe...

How to add custom Yaxis option for UIAxes via Editfield(Numeric) while plotting in matlab appdesigner (Ver 2020a)

ymin = app.YAxisMinValueEditField.Value; ymax = app.YAxisMaxValueEditField.Value; % I'm guessing this handle ylim(app.UIAxe...

5 days ago | 0

| accepted

Answered

how to "convert" user inputted letter and number combination to a row,col position on a plot?

"The user is to input a number..." How is the user providing these inputs? If you're using the input() function, don't. It's ...

how to "convert" user inputted letter and number combination to a row,col position on a plot?

"The user is to input a number..." How is the user providing these inputs? If you're using the input() function, don't. It's ...

5 days ago | 1

Answered

How to plot 2 discrete plots (each of a different colour) with stem ?

h = stem(time,graphs) will return a vector of handles. Then set their color using h(1).Color = 'b'; h(2).Color = 'r'; If ...

How to plot 2 discrete plots (each of a different colour) with stem ?

h = stem(time,graphs) will return a vector of handles. Then set their color using h(1).Color = 'b'; h(2).Color = 'r'; If ...

6 days ago | 0

Answered

funtion to convert value to string

Alternative solution: use an anonymous function. str = getStars(p) returns a string for the given p-value. stars = {'**','*'...

funtion to convert value to string

Alternative solution: use an anonymous function. str = getStars(p) returns a string for the given p-value. stars = {'**','*'...

6 days ago | 1