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Birsen Ayaz-Maierhafer


Last seen: 1 month ago Active since 2019

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readtable .txt file, reading string row issue
Hi, I have a text file with several columns and rows. The first coulmn are string while the rest of the columns are just data....

2 months ago | 1 answer | 0

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answer

Question


Pull numeric data from a mixed text data into a matrix in a loop
Hi, I have hundreds of mixed text files and I would like to pull some of the numeric data and create a matrix using a for loop ...

1 year ago | 1 answer | 0

1

answer

Question


Copy and paste all lines from the first text file to another text file after certain line numbers
Hi, I would like to copy and paste the values from the first txt file (Al.txt) to another text file (TestFile1.txt) after lin...

1 year ago | 1 answer | 0

1

answer

Question


dynamic matrix with changing variable name in for loop
Hi, I want to rename each matrix in a loop. There are two variable 'mat" and "ser". I tried the code below. Did not work. Any ...

1 year ago | 1 answer | 0

1

answer

Answered
Fix the error with "Error using urlread'
Hi Chris, Thank you. Yes, I am trying to repeat the demo on the ApMonitor site. The apm folder is in the same folder. Regressi...

1 year ago | 0

Question


Fix the error with "Error using urlread'
Hi, I am using MATLAB with apm (APMonitor) to find the parameters of an equation but I got an error : "Error using urlread T...

1 year ago | 2 answers | 0

2

answers

Question


elseif staement problem when matches a combination of string and number
Hi, I have a function returnes the folder name. It works very well for 'Al', 'Os' and 'Pt' but when I define 'O17' it gives m...

1 year ago | 1 answer | 0

1

answer

Question


Pull numeric data from a mixed text file
Hi, I have a >15,000 row mixed data (numbers and strings). I want to pull some of the data from different parts of the text file...

1 year ago | 1 answer | 0

1

answer

Question


Using logical index matrix to create another matrix with values
Hi All, I have a matrix (E) with 180 x45 with values. I would like to create another matrix where the values are >1E9. First ...

1 year ago | 1 answer | 0

1

answer

Question


fit curve and equation with a constant coefficient
Hello, I have an equation to fit with the data. I get a good fit. yfit=(a+ (b./x.^2)).*exp(-x/c); I get the a,b and c number...

1 year ago | 1 answer | 0

1

answer

Question


Best tool to calculate the parameters of a custom equation fit
Hello, There are quite a bit merhods/tools to fit an custom equation to the experimantal data. I am struggling to use the right...

1 year ago | 2 answers | 0

2

answers

Question


custom equation fit - function value and YDATA sizes are not equal
Hello, I have data to make a fit with custom equation and would like to find the 3 parameters using lsqcurvefit F = @(x,xdat...

1 year ago | 1 answer | 0

1

answer

Question


fittype, multiplication with constant
Hi, I have a data needs a curcefit. Someone else used the follwing custom fit equation in a different code and obtained a very...

2 years ago | 1 answer | 0

1

answer

Question


cftool with no log scale issue
I am trying to fit my data set using cftool. For example I did Power fitting and the R-square=0.997 (also see the attachment). I...

2 years ago | 1 answer | 1

1

answer

Question


Cutom Curve Fit for mixed plot
Hi, I am trying to fit a custom equation to my data. Using cuve fitting tool box the closest was exp1 fit but it is still not a...

2 years ago | 1 answer | 0

1

answer

Question


matlab plot, interrupted line when y is zero
Hi, I have a data that has some zero values but I would like to avoid to plot these values but I want a continues line between ...

4 years ago | 1 answer | 0

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answer