Answered

readtable (excel) behavior for string type with empty cell vs spaces

According to Jemima's answer, confirmed that the issue is an internal conversion of the "" to <missing> within readtable. Furthe...

readtable (excel) behavior for string type with empty cell vs spaces

According to Jemima's answer, confirmed that the issue is an internal conversion of the "" to <missing> within readtable. Furthe...

11 months ago | 0

| accepted

Answered

Split datetime column data into two column

if you import it as a datetime variable, you can use datetime operations to render into whatever format you want, including one ...

Split datetime column data into two column

if you import it as a datetime variable, you can use datetime operations to render into whatever format you want, including one ...

11 months ago | 0

Question

readtable (excel) behavior for string type with empty cell vs spaces

I am trying to make an excel import function robust to treat either empty cells or cells containing only spaces in a specific wa...

12 months ago | 3 answers | 0

Answered

Can you replace names in struct?

Going out on a limb since as Matt J points out it's not clear what exactly everything is, but... I think what you need is metad...

Can you replace names in struct?

Going out on a limb since as Matt J points out it's not clear what exactly everything is, but... I think what you need is metad...

12 months ago | 0

| accepted

Answered

Creative way to create a Matlab array from a textfile with multiple headers.

This will grab the data, but it will not be organized...you can change internal storage to suit your needs. I'm curious if this ...

Creative way to create a Matlab array from a textfile with multiple headers.

This will grab the data, but it will not be organized...you can change internal storage to suit your needs. I'm curious if this ...

12 months ago | 1

Answered

Dragable rectangle with text

Ugly, but minimal changes to original code: function drag_drop close all dragging = []; orPos = []; f = figure('WindowB...

Dragable rectangle with text

Ugly, but minimal changes to original code: function drag_drop close all dragging = []; orPos = []; f = figure('WindowB...

12 months ago | 0

Answered

Number of button groups in GUI depending on user input?

I would question the premise... How about having a listbox that lists each measurement, and only a single button group, whose c...

Number of button groups in GUI depending on user input?

I would question the premise... How about having a listbox that lists each measurement, and only a single button group, whose c...

12 months ago | 0

Answered

Fit height uitable App Designer

it wouldn't work with the "fit" gridlayout, but if it is really important to you, what i have done in the past is to measure the...

Fit height uitable App Designer

it wouldn't work with the "fit" gridlayout, but if it is really important to you, what i have done in the past is to measure the...

1 year ago | 0

| accepted

Answered

Fit height uitable App Designer

Look into uigridlayout with the "fit" keyword for row heights

Fit height uitable App Designer

Look into uigridlayout with the "fit" keyword for row heights

1 year ago | 0

Answered

How can I plot this type of figures?

Using surf, did you take these steps? L = membrane(3); surf(L,"LineStyle","none") % don't display mesh view(2) % view from to...

How can I plot this type of figures?

Using surf, did you take these steps? L = membrane(3); surf(L,"LineStyle","none") % don't display mesh view(2) % view from to...

1 year ago | 0

| accepted

Answered

Dataflow in App Designer

Yes, much clearer explanation of your question. All due respect to Sourabh, I do not think you are looking for multi-window app...

Dataflow in App Designer

Yes, much clearer explanation of your question. All due respect to Sourabh, I do not think you are looking for multi-window app...

1 year ago | 0

Answered

Newton's method for minimisation returns a critical point

Yes this looks normal, you are only asking to zero the gradient of the function, so naturally that includes non-optimal points w...

Newton's method for minimisation returns a critical point

Yes this looks normal, you are only asking to zero the gradient of the function, so naturally that includes non-optimal points w...

1 year ago | 0

Answered

Search function in drop down menu in AppDesigner?

Just confirmed, if you set the "Editable" property of a uidropdown to "on", you get some simple filtering of the Items based on ...

Search function in drop down menu in AppDesigner?

Just confirmed, if you set the "Editable" property of a uidropdown to "on", you get some simple filtering of the Items based on ...

1 year ago | 1

Answered

MATLAB App Designer hold on/off throwing warnings

I would set the "NextPlot" property of the polar axes to "add". pax.NextPlot = 'add';

MATLAB App Designer hold on/off throwing warnings

I would set the "NextPlot" property of the polar axes to "add". pax.NextPlot = 'add';

1 year ago | 0

| accepted

Answered

Finding strings in a cell array that start with a specific substring

Try this A = {'test' 'hello' 'world' 'st1' 'st2' 'st99'} matches = regexp(A,'^st\d+$','match') B = [matches{:}]

Finding strings in a cell array that start with a specific substring

Try this A = {'test' 'hello' 'world' 'st1' 'st2' 'st99'} matches = regexp(A,'^st\d+$','match') B = [matches{:}]

1 year ago | 0

| accepted

Answered

How to plot sphere in sphere coordinates?

Your problem is not with conversion or plotting, but defining the coordinates that you want... [phi,theta] = meshgrid(linspace(...

How to plot sphere in sphere coordinates?

Your problem is not with conversion or plotting, but defining the coordinates that you want... [phi,theta] = meshgrid(linspace(...

1 year ago | 0

| accepted

Answered

fit curve with parameter

If i understand Rik correctly, I think you'd first have to estimate the t data by computing the cumulative arc length between yo...

fit curve with parameter

If i understand Rik correctly, I think you'd first have to estimate the t data by computing the cumulative arc length between yo...

1 year ago | 0

| accepted

Answered

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

In case you want to make battlship on an insanely large grid, here's a more general solution to convert "Excel column" style lab...

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

In case you want to make battlship on an insanely large grid, here's a more general solution to convert "Excel column" style lab...

1 year ago | 0

Answered

Plotting into Multiple Axes in GUI

Any plot command can accept as a first argument a target axes object to plot into.

Plotting into Multiple Axes in GUI

Any plot command can accept as a first argument a target axes object to plot into.

1 year ago | 0

| accepted

Answered

How do I pass a variable number of outputs through two functions?

Currently your GetData function literally has no purpose other than to alias the function you want with other names...the mechan...

How do I pass a variable number of outputs through two functions?

Currently your GetData function literally has no purpose other than to alias the function you want with other names...the mechan...

1 year ago | 0

| accepted

Answered

minify Matlab code (minimize number of characters)

Partial answer to implement Rik's original stripping of blank lines and full comment lines, and also attempt to squeeze the line...

minify Matlab code (minimize number of characters)

Partial answer to implement Rik's original stripping of blank lines and full comment lines, and also attempt to squeeze the line...

1 year ago | 1

Answered

Animating a pointmass sliding down a plane

There's some inconsistency in whether you are treating the angle from vertical or horizontal (effectively). It may also be conce...

Animating a pointmass sliding down a plane

There's some inconsistency in whether you are treating the angle from vertical or horizontal (effectively). It may also be conce...

1 year ago | 0

| accepted

Answered

How to solve system of nonlinear ODEs with "unusual" boundary conditions?

If you are talking about boundary value problems versus initial value problems, look at bvp4c and bvp5c. There is nothing "unusu...

How to solve system of nonlinear ODEs with "unusual" boundary conditions?

If you are talking about boundary value problems versus initial value problems, look at bvp4c and bvp5c. There is nothing "unusu...

1 year ago | 0

Answered

Euler's Method/Improved Euler's Method

The error is telling you that at the first step of your loop (n=1), you are trying to access the n=2nd element of t and y, but a...

Euler's Method/Improved Euler's Method

The error is telling you that at the first step of your loop (n=1), you are trying to access the n=2nd element of t and y, but a...

1 year ago | 0

Answered

set uiaxes in matlab function as current figure to plot on

I would argue that it makes more sense (more elegant) to require specifying the parent axes to plot. The way that you want may c...

set uiaxes in matlab function as current figure to plot on

I would argue that it makes more sense (more elegant) to require specifying the parent axes to plot. The way that you want may c...

1 year ago | 0

| accepted

Answered

How to solve unknown coefficients for an exponential fit equation iteratively?

MattJ's answer takes y0 to be known, which Yi Jiao clarified is not the case. Treating y0 unknown and extending MattJ's answer l...

How to solve unknown coefficients for an exponential fit equation iteratively?

MattJ's answer takes y0 to be known, which Yi Jiao clarified is not the case. Treating y0 unknown and extending MattJ's answer l...

1 year ago | 0

Answered

Is there a simpler or more efficient way to do the following?

You could for example do this function B = label1(A) [rows,cols] = size(A); B = ["",string(1:cols);[string((1:rows)')+char(9)...

Is there a simpler or more efficient way to do the following?

You could for example do this function B = label1(A) [rows,cols] = size(A); B = ["",string(1:cols);[string((1:rows)')+char(9)...

1 year ago | 0

| accepted

Answered

How to filter a structure based on part of nested field names

It's not 100% clear where you are stuck, but it sounds like knowing about "fieldnames()" will help. For data structure design, ...

How to filter a structure based on part of nested field names

It's not 100% clear where you are stuck, but it sounds like knowing about "fieldnames()" will help. For data structure design, ...

1 year ago | 1

| accepted

Answered

Simulate image data representative of a real experiment

Bjorn's answer contains the conv2() route to blurring fK = exp(-X.^2/dx^2-Y.^2/dy^2); fK = fK/sum(fK(:)); Im = conv(full(dIm)...

Simulate image data representative of a real experiment

Bjorn's answer contains the conv2() route to blurring fK = exp(-X.^2/dx^2-Y.^2/dy^2); fK = fK/sum(fK(:)); Im = conv(full(dIm)...

1 year ago | 0

Answered

deconvolution of impedance spectra

the deconvolution operation is denoted "deconv" in base matlab. whether this is what you are looking for is unclear from your qu...

deconvolution of impedance spectra

the deconvolution operation is denoted "deconv" in base matlab. whether this is what you are looking for is unclear from your qu...

1 year ago | 0