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Udit Gupta


Last seen: ongeveer 4 jaar ago |  Active since 2014

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Professional Interests: Signal Processing, Eclectro-acoustics, Machine Learning, Music Information Retrieval

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Question


'subsindex' error when setting figure position. What is going on?
I am trying to resize a figure as shown H = figure; set(H,'Position',[200 200 800 200]) I get the error Function...

meer dan 8 jaar ago | 1 answer | 1

1

answer

Submitted


saveaspub(h, name, format)
Save Matlab plots and figures for publication as pdf or eps vector formats.

meer dan 8 jaar ago | 1 download |

Question


Why is there a permission error when repeat writing to excel file?
I am writing results of multiple analyses to different sheets of the same excel file using "writetable" command. The first inst...

meer dan 8 jaar ago | 11 answers | 6

11

answers

Answered
Text in a figure: Increasing Font Size
You can either include the option 'manual' in your *clabel* call and use your mouse to place the labels; or you can use the 'Lab...

meer dan 8 jaar ago | 0

| accepted

Answered
Help with data extraction script
Try using the *readtable* function. This imports tabular data into matlab. Alternatively you can use the "Import Data" button...

ongeveer 9 jaar ago | 0

Answered
How to design a bandpass filter
The easiest way is to use the Filter Design and Analysis Tool. Just type |fdatool| in matlab command window. This needs Signal P...

ongeveer 9 jaar ago | 0

Answered
Merging two tables based on time interval
You can use t = interp1(sample_time,tableB.Time,'nearest'); if abs(sample_time-t <= 40/(24*60)) <Update medicat...

ongeveer 9 jaar ago | 0

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

ongeveer 9 jaar ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

ongeveer 9 jaar ago

Submitted


Publish Latex Equation
Output a latex formatted string as an image in while publishing

ongeveer 9 jaar ago | 1 download |

Answered
how to calculate the probability under a pdf curve and divide it into different sections (areas)?
Assuming you have the curves as a matlab vector, you can use the *trapz* function to find area under it. See http://www.mathw...

meer dan 9 jaar ago | 1

Answered
weighted average w/ matlab
You can do something like - weight=normpdf(range,centerPoint,spread); wAvg = sum(Y(range).*weight)/sum(weight); In you...

meer dan 9 jaar ago | 1

| accepted

Question


Is there a way to convert function handles to nan equivalent function handles?
I am passing a cell array of function handles to my function. Typically a user might pass something like- {@sum,@median,@mea...

meer dan 9 jaar ago | 1 answer | 0

1

answer

Answered
How to find t test of two independent samples in MatLab?
Use the function *ttest2* from matlab statistics toolbox. (http://www.mathworks.com/help/stats/ttest2.html)

meer dan 9 jaar ago | 2

| accepted

Answered
Anyone know the error checking for special characters
You can use regular expressions. The code will go something like this - if any(regexp(str,'[^_a-zA-Z0-9]+')) <error c...

bijna 10 jaar ago | 0

Answered
Save PDF for Latex problems in resolution
I do the following operations before saving my figures for latex set(gcf,'Units','Inches'); pos = get(gcf,'Position'); s...

bijna 10 jaar ago | 0

| accepted

Answered
sprintf with leading minus sign
use sprintf('%6.2f',abs(x))

bijna 10 jaar ago | 0

Answered
How to do a t-test with repeated measurements from 3 different devices?
You can do it in three steps. H1=ttest(X(1:30),12); H2=ttest(X(31,60),12); H3=ttest(X(61,100),12); If you wa...

bijna 10 jaar ago | 0

Question


How to make the legend selective?
I have a bunch of algorithms I am testing for statistical significance. I wrote a script to generate and save plots which I can ...

bijna 10 jaar ago | 2 answers | 0

2

answers

Question


Wrong color showed by "imagesc" function, what am I doing wrong?
Hi I have a 3x3 matrix of p-values and I want to display it using a colored grid. I am using the "imagesc" function with a "Copp...

bijna 10 jaar ago | 1 answer | 0

1

answer

Answered
Prediction based on previous historical data
You can use mtlabs Curve Fitting tool (cftool). If you don't have that search for any linear regression or linear interpolation ...

ongeveer 10 jaar ago | 0

Answered
Batch process text files
You can use - fileName = [input_directory filelabels(i).name]; That should solve the issue.

ongeveer 10 jaar ago | 0

| accepted

Answered
how to generate random points in a line
For each line (edge) of the polyhedron you can write it's equation as (y - y1) = (y1 - y2)(x - x1)/(x1 - x2) So in case...

ongeveer 10 jaar ago | 0

| accepted

Question


How to check if a figure is closed using the big red 'X' mark?
Hi! I am using a gui in my application. There are 'Ok' and 'Cancel' buttons there which upon clicking close the figure and do so...

ongeveer 10 jaar ago | 1 answer | 2

1

answer

Question


Is there a tool/method to determine the versions of Matlab my code is compatible with.
Hi! I sometimes have to distribute Matlab code to my students. I work with a university site license, so I usually have the late...

meer dan 10 jaar ago | 1 answer | 0

1

answer

Answered
creating a data array from a matrix
This is simple if you use matlab lower triangle functions. See the example code below please. A = magic(39) % Your Martix ...

meer dan 10 jaar ago | 2

Answered
Cell contents assignment to a non-cell array object.
Instead of x=input('Dame el valor x0 inicial'); x{1}=x; use temp=input('Dame el valor x0 inicial'); x{1}=temp;

meer dan 10 jaar ago | 0

Answered
Replacing the column of array elements with NaN.
This should do the trick - |index1 = A(:,1)<x(1,1) | A(:,1)>x(1,2);| |index2 = A(:,1)<x(2,1) | A(:,1)>x(2,2);| |A(index...

meer dan 10 jaar ago | 0

Answered
where did tstool go?
This is from the documentation "tstool will be removed in a future release. To create a time series object, use timeseries...

meer dan 10 jaar ago | 0

| accepted

Answered
Extend a vector by extending its elements
If your vector is X. reshape(repmat(X,d,1),1,[]) should do the trick. Example - >> X = [1 2 3 4]; >> d=4; ...

meer dan 10 jaar ago | 1

| accepted

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