# C.G.

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Question

subtracting consecutive elements from arrays

I have 2 arrays. To generate e, I want to subtract d from Q. After the first 10 times, I want to cycle back through Q for the ne...

10 months ago | 1 answer | 0

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answerQuestion

subtracting arrays from each other

I have 2 arrays. I want to subtract b from a, but starting at the second element of b eg. 16-14, 24-20 etc. The result should b...

10 months ago | 1 answer | 0

### 1

answerQuestion

if loop to save number or call NaN

I have 2 variables, both with 8 numbers in them. I want to create a new variable which has 10 numbers in it using a for and an...

1 year ago | 1 answer | 0

### 1

answerQuestion

if loop to find values in a variable

I have 2 arrays of numbers, t and Q. I want to use an if loop to do the following: find if tfind is present in the variable t. ...

1 year ago | 1 answer | 0

### 1

answerQuestion

degrees of freedom chi2inv

I am using a code given to me by somebody else to generate a 95th percentile for my data, and one of the lines in my code is: n...

1 year ago | 1 answer | 0

### 1

answerQuestion

Generate random numbers with truncated Pareto distribution

I am wanting to generate a series of random numbers from a truncated Pareto distribution. I can see there is a function in matla...

1 year ago | 2 answers | 0

### 2

answersremoving specified data from variable

As I said, I eventually want to choose from a gaussian distribution. This would mean I would get a large amount of values in the...

1 year ago | 0

Question

removing specified data from variable

I have a 100x2 dataset I am working with. I also have 2 random distributions of data. I want to modify my original dataset in ...

1 year ago | 2 answers | 0

### 2

answersQuestion

if column 1 is nan, make corresponding number in column2 nan

I have the code below which randomly assigns 10% of the dataset to Nan. However this only turns column 1 to NaN. How can I make ...

2 years ago | 2 answers | 0

### 2

answersQuestion

fit data trend with equation

I have the datset attached, and i'm trying to find an equation which describes the trend. I have tried using basic fitting but...

2 years ago | 1 answer | 0

### 1

answerQuestion

changing time interval of interest in a dataset

My code below uses my data, and follows the equation Q_i+1 - Q_i/time The time interval of interest changes as defined by time....

2 years ago | 1 answer | 0

### 1

answerQuestion

Changing numbers summed together in for loop

I have a code below, which minuses one value from another and divides it by the defined time interval (dt). This code works fo...

2 years ago | 1 answer | 0

### 1

answerQuestion

looping through multiple numbers

I have written a script, which tells me which rows of A are above the threshold, and then the difference between the numbers in ...

2 years ago | 1 answer | 0

### 1

answerQuestion

r squared comparing sine waves

I have a dataset to which I have asked matlab to fit a sine wave. I want to find the r^2 value to see how well the sine curve I ...

2 years ago | 1 answer | 0

### 1

answerQuestion

fit a sine wave to a set of data points

I have the dataset attached and the code below to try and fit a wave to the data. Im getting the following error which I can't g...

2 years ago | 1 answer | 0

### 1

answerQuestion

moving sum over multiple time windows

I have a dataset Q_opss, and I want to find the maximum moving sum of the dataset over lots of different windows. I have the co...

2 years ago | 1 answer | 0

### 1

answerQuestion

logarithmic binning data in matlab

I have a dataset, and I have been told to bin the data using logarithmic binning. How would I go about logarithmic binning this...

2 years ago | 1 answer | 0

### 1

answerQuestion

plotting a CDF with 2 logs axis

I have a time series of data, and I want to plot a CDF for this. I have plotted the cdf for this, but it is on normal axis. Is ...

2 years ago | 1 answer | 0

### 1

answerQuestion

moving mean over 5 cells

I have a dataset where im trying to find the mean of every 5 cells and then divide this by 5 I have the code below, but I have ...

2 years ago | 1 answer | 0

### 1

answerQuestion

error using etime (datevec)

I have a csv file with times for experiment start and end. I'm trying to use etime to work out the time difference but im gettin...

2 years ago | 2 answers | 0

### 2

answersQuestion

error using textscan with csv files

I have been given a code to process some data in a csv file. When I run this I get the error below. Can anybody help? fid = fop...

2 years ago | 1 answer | 0

### 1

answerQuestion

interpolating data to different sample rate

I have 2 data sets I want to correlate. One is sampled every second, and one is sampled at a much smaller interval (attached). I...

2 years ago | 2 answers | 0

### 2

answersQuestion

resampling data into equal intervals

I have a dataset (attached) which has been sampled at unequal intervals, but for processing I need to resample this to every sec...

2 years ago | 1 answer | 0

### 1

answerQuestion

saving figure with title as name of file

I have 4 .mat files. I extract the data from these, plot them and save each figure. Now, I want the title of the plot, and the ...

2 years ago | 1 answer | 0

### 1

answerQuestion

looping through 2 .mat files

I have 2 matlab files with data in. Im trying to get my code to loop through both files and put the data into the 6 pre-assigned...

2 years ago | 1 answer | 0

### 1

answerQuestion

making repetitive code less clunky

My code works, but its very long winded. I didnt know if there was a way this could be simplified to get the same outcome? I wa...

2 years ago | 2 answers | 0

### 2

answersQuestion

plotting multiple vertical lines on a graph

Im currently using the code below to plot vertical lines on my graph at 0.5 intervals, but I want to change this to plot at ever...

2 years ago | 1 answer | 0

### 1

answerQuestion

plotting a line of best fit using a for loop

I have the code to plot a line of best fit through my data but now I am trying to do this for multiple data sets in a for loop b...

3 years ago | 1 answer | 0

### 1

answerQuestion

store multiple outputs into one matrix

My code currently produces 14 individual variables (x1-7 and y1-7), I am currently plotting these on a graph using hold on state...

3 years ago | 1 answer | 0

### 1

answerQuestion

find maximum number in a range of data

I have a matrix T, and I have asked it to find all the rows where the value in column 5 is between 2 numbers and save these as S...

3 years ago | 1 answer | 0