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# Tommy

##### Last seen: 8 days ago
334 total contributions since 2017

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Calculating survival probabilities from Mortality tables in MATLAB
readtable() returns a table which should contain your variables. Try [a,elx] = lifetablefit(data.x, data.lx);

10 months ago | 1

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Issue with defining inputs in classdef and getting properties updated
For your second line: [position,velocity,current] = motor.input(5,10); If you want input() to accept values for the voltage an...

10 months ago | 1

Why is corr/corrcoef returning NaNs?
You can use corr(OptimismBias, AmbigTolG, 'rows', 'complete') to ignore the NaN values.

11 months ago | 3

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Can I detect array index inside setter method?
"For indexed assignment: obj.PropName(n) = val; MATLAB: Invokes the get method to get the property value Performs the indexe...

11 months ago | 0

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How to add histogram to series of scattered plot on the same plot?
scatterhist() uses different syntax than scatter(). It seems like you need to enter all the data at once, as vectors, and then u...

11 months ago | 1

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How to extract one plot from multiple plots?
Assuming you have the figure handle, how about something like this? % setup f = figure; for idx = 1:8 ax = subplot(4,2,i...

12 months ago | 0

how to detect a keyboard key in a while loop using a figure
You could use the figure's KeyPressFcn, possibly combined with some of the ideas below: myFig = figure('KeyPressFcn', @myKeyPre...

12 months ago | 0

Averaging values in Column B based on serial date in column A
Does it need to be a loop? I believe this will work: groups = findgroups(yourArray(:,1)); avg = splitapply(@mean, yourArray(:,...

12 months ago | 0

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Accessing an ROI move listener in another function so to delete it
Assuming you don't want to delete the ellipse, you could instead delete the listener within your button's callback function. You...

12 months ago | 0

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Convert a vector into a matrix (row wise)
From the reshape() docs, for the syntax B = reshape(A,sz) "The elements in B preserve their columnwise ordering from A." If...

12 months ago | 1

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Combining x and y arrays and converting subsequent values
Assuming x and y are formatted like the following... [x,y] = meshgrid(1:1920,1:1080); ...then how about this? q = nan(size(x)...

12 months ago | 0

Create matrix with different type of data and sort it based on one of its columns
For the following example: % example... A = strings(10,1); B = rand(10,1); you could use a table: % combine and sort... T ...

12 months ago | 0

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Patch color error "Vectors must be the same length."
The docs linked by Geoff mention that you can specify an n-by-1-by-3 array of RGB values (for n number of faces). I've defined c...

12 months ago | 0

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How to format output to exponential notation
This should work: fprintf('At voltage = %.2E nV\n',CurData(1,C)*10^9) If you don't want the plus sign: val = CurData(1,C)*10^...

12 months ago | 0

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How to return index of started specific pattern from array/matrix(column/rows)
See here: https://blogs.mathworks.com/loren/2008/09/08/finding-patterns-in-arrays/#7 idx = strfind(a, ex);

12 months ago | 1

Change labels positions for pie chart

12 months ago | 2

How to fill a matrix column by column better than by a for loop?
How about something like this? xx = 0:0.1:1; nxx = numel(xx); nyy = 10; xm = repmat(xx',1,nyy); base = linspace(0,1,nyy);...

12 months ago | 1

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How to make the program more flexible
Here's a function that places an M x N grid of Xs within a rectangle defined by pos, as well as a few lines which use that funct...

12 months ago | 1

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Replacing Values in Matrix with NaN's based on Row and Column
Possibly, you could use sub2ind() to convert your rows and columns to linear indices: ind = sub2ind(size(yourMatrix), yourRows,...

12 months ago | 0

Get the middle point of a matrix
Possibly MATLAB's convolution functions will be faster: % 1D case: B = conv(A, ones(2,1), 'valid') / 2; % 2D case: B = con...

12 months ago | 1

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Opening a figure saved in .fig with several plots and working on them separately
You could obtain handles to each of the axes within your figure and go from there: fig = openfig('myfig.fig'); ax_handles = fi...

12 months ago | 0

Error When Using Writetable Function
It seems like writetable() has trouble handling the case where a variable in your table contains a cell which itself contains an...

12 months ago | 0

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Indexing a matrix in matlab according to conditions set on other matrices
Here's one way: result = (a <= 5 & b >= 6) .* c;

12 months ago | 1

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Plot with intervals for x axis
I believe stairs() is what you want: https://www.mathworks.com/help/matlab/ref/stairs.html

12 months ago | 0

changing uislider position by script
sld = uislider(fig,... 'Orientation', 'vertical',... 'Position',[ 100 100 3 100],... ...

1 year ago | 0

how to define a path in saveas command
Possibly like this? pathdatasave = 'E:\matlab'; saveas(gcf,sprintf('%s%03d.png', pathdatasave, i));

1 year ago | 0

Disable Datatips on click
Not the greatest solution, but you could make the datatips invisible until your timer deletes them: dcm = datacursormode; dcm....

1 year ago | 1

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Index exceeds the number of array elements (5).
Likely a typo in line 56: As(6)=-l^2*cos(phi); %Spring node 6 % ^ should be Af? As it is, Af only h...

1 year ago | 0

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Why aren't my lines showing up on my graph?
Specify a marker to show scalar values. For example, a circle: plot (GT, IP, 'ro') Or are you trying to plot a range of pressu...

1 year ago | 0