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How do you mark and extract an area from an imagesc-figure?
"I would like to manually mark a certain area and extract the data within this area." There's a few things you could do. Check...

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Plotting only the year of a column vector with full date
Use xtickformat or datetick Demo: dt = datetime(1999,01,01) + days(1:100:5000); y = rand(size(dt)); ax = gca(); plot...

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what is the value for L2 regularization coeff, by default,while training?
I think you're looking for the L2Regularization Solver Option.

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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...

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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...

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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') ...

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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...

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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 ...

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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 ...

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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...

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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...

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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...

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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', ...

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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...

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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, ...

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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(...

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Discussion

New in R2020b: Record snapshots of your app
<</matlabcentral/discussions/uploaded_files/2223/commHighlighIconSmall.png>> # Use the new exportapp function to capture an i...

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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....

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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]) && ...

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How to assign yyaxis '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 ...

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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 ...

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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....

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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. ...

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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 ...

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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(...

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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 ...

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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...

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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...

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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...

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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 ...

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