# Tommy

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**Content Feed**

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);

12 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...

12 months ago | 1

Why is corr/corrcoef returning NaNs?

You can use corr(OptimismBias, AmbigTolG, 'rows', 'complete') to ignore the NaN values.

12 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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(:,...

1 year 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...

1 year 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...

1 year 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)...

1 year 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 ...

1 year 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...

1 year 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^...

1 year 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);

1 year ago | 1

Change labels positions for pie chart

One option: https://www.mathworks.com/matlabcentral/answers/94801-why-do-the-pie-labels-overlap-when-the-wedges-are-very-small-...

1 year 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);...

1 year 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...

1 year 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,...

1 year 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...

1 year 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...

1 year 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...

1 year 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;

1 year 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

1 year 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

Plot only adjacent points that are close to each other

logidx = abs(diff(Y)) < 0.022; dY_idx = find([logidx 0] | [0 logidx]); Y_adj_close = Y( dY_idx ); Seems to me that every part...

1 year ago | 0

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