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Farooq


14 total contributions since 2017

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Question


Labeling the columns in an array
If we import a .csv or Excel file using readtable, and then convert the table to an array as the following: Data=table2array(re...

11 jours ago | 1 answer | 1

1

answer

Question


Correct choice of one sided frequency axis after fft
There are a lot of queries on fft frequency. I guess the following point not discussed anywhere explicitly (at least at one plac...

16 jours ago | 0 answers | 0

0

answers

Question


How to replace numbers in a column vector after certain elements?
How should we proceed if we have a column vector X with 1000 elements, and we wish to replace all the values after a certain row...

17 jours ago | 1 answer | 0

1

answer

Question


fftshift with even and odd number of data points (scaling the positive and negative frequency axis)
If we wish to draw double sided frequency axis, i.e., positive and negative frequencies with odd and even number of data points ...

environ 2 mois ago | 1 answer | 0

1

answer

Question


How to add labels to an array or table (after conversion from an array)
I have an array of 2000 x 4 data points. I would like to add labels to the columns only. For example, Column 1 should be 'time/m...

environ 2 mois ago | 1 answer | 0

1

answer

Question


Assigning indexes in an array and finding max values in a selected range
If we have X = time series data and signal in a 8000x 2 array (Matlab 2017b). The first column is time and the second column is ...

3 mois ago | 1 answer | 0

1

answer

Question


Frequency scale in fft after zero filling (odd/even number of data)
Product: Matlab 2017b If we have data set "A" which consists of time versus light absorbance.There is another set of data "B"....

3 mois ago | 1 answer | 0

1

answer

Question


How to combine sections from Workspace into a new vector?
I have Matlab 2017b. 1) If we have two vectors A and B, in the workspace (1000x1), each of same dimension. How can one combine...

3 mois ago | 1 answer | 0

1

answer

Question


Creating Timetables: Error Message in SampleRate
Hello, I am trying to use a suggested function to generate a timetable with a sampling frequency of 200 Hz. tt = timetable(rand...

3 mois ago | 1 answer | 0

1

answer

Question


Doing averages in blocks for downsampling time series data
One way to downsample is to do averaging in blocks. I had asked a question here "I would like to downsample data simulated at 20...

3 mois ago | 1 answer | 0

1

answer

Question


Command for filling in zeros as powers of 2 for FT
If we two sets of signals (A and B) of unequal length, I am using zero padding first to make the length of B equal to A by using...

4 mois ago | 1 answer | 0

1

answer

Question


How to treat a given column in a sheet from Workspace as a variable?
I am generating exponentially modified Gaussians (EMGs) from a simulation and wish to do FT on a selected sheet in the Workspace...

4 mois ago | 0 answers | 0

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answers

Question


How to read two Excel files and assign columns as variables in MATLAB?
Hello, I am using MATLAB 2017b. I have two Excel.xlsx files, call them A and B, containing time vs. instrument signals under two...

4 mois ago | 1 answer | 0

1

answer

Question


Area under multiple peaks (Exponentially Modified Gaussians)
Hello, I have numerical data from an instrument (time vs. absorbance) consisting of three overlapping peaks (attached Excel). Is...

plus de 2 ans ago | 1 answer | 0

1

answer