# Ancalagon8

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**Content Feed**

Question

Calculate number appearance within a range

I need help calculating the number of times a number appears within a range. To be more specific, I need to specify how many tim...

16 days ago | 2 answers | 0

### 2

answersQuestion

Frequency distribution of monthly data

I have a monthly timetable with some values and I need to calculate the frequency distribution in classes from 0 to 10 with step...

18 days ago | 1 answer | 0

### 1

answerQuestion

Divide annual timeseries to monthly ones

For a specific year I have created an hourly timetable using retime: VarPerHour = retime(T, 'hourly', 'sum'); How can I divide...

19 days ago | 2 answers | 0

### 2

answersQuestion

Group wind data in clusters based on direction

I have an annual table with wind direction values and I want to group them per month in 16 sectors based on the degrees. Is it ...

26 days ago | 1 answer | 0

### 1

answerQuestion

Calculate the maximum and minimum values and what day these values occured

Hello I have a big timetable (one year) with temperature recorded every minute. I want to calculate the maximum and minimum valu...

28 days ago | 1 answer | 0

### 1

answerQuestion

Calculate daily standard deviation from timetable

Hello, I want to calculate the mean max and mean min standard deviation of temperature data from a daily timetable. t=timetabl...

1 month ago | 1 answer | 0

### 1

answerQuestion

Maintain values inside loop

I need help debugging this part of my code, from annual data i want to create 12 timetables , one for each month. Right now the ...

2 months ago | 1 answer | 0

### 1

answerQuestion

Calculate consecutive values from annual data to monthly have a yearly timetable (events(1X365)) and I want to find how many consecutive values are equal to 1 for every mont

I have a yearly timetable (events(1X365)) and I want to find how many consecutive values are equal to 1 for every month. Right n...

2 months ago | 1 answer | 0

### 1

answerQuestion

Calculate values inside a nested loop with different steps and store them in the same variable.

I have a matrix (x) and want to calculate where its values are above certain thresholds and store the results in a new matrix (C...

2 months ago | 2 answers | 0

### 2

answersQuestion

Combine excel files into one

I want to run the code below, inside every folder i have an excel file (data.xls) and i want to compare 10 excel files into 1. C...

4 months ago | 1 answer | 0

### 1

answerQuestion

Changing file path in a loop and save figures

I want to run a code where inside every folder i have a data file and save in each folder a .fig. Can anyone help me?

4 months ago | 2 answers | 0

### 2

answersQuestion

trying to understand why I get 2.2204e-16 rather than 0

Im trying to understand why when i make x-y (where x=1.6 and y=1.6) i do not get 0 as a result.

1 year ago | 1 answer | 0

### 1

answerQuestion

how to plot double against datetime

I am trying to plot a .csv file. filename='data.csv'; data = readtable(filename); % read csv file time = data{:,1}+data{:,2...

2 years ago | 1 answer | 0

### 1

answerQuestion

matlab area calculation under fitted curve

I have a signal and want to calculate the area under the produced fft with step of 5Hz. So far i created an fft, normalized an...

2 years ago | 1 answer | 0

### 1

answerQuestion

handle character minus character

I have two characters which contain '18:29:42.835' and '18:29:49.425'. How is it possible to subtrack t2-t1 so as to find durati...

2 years ago | 2 answers | 0

### 2

answersQuestion

add line in a datetime plot

Hello I have a figure with datetime in x- axis. I want to plot a vertical line like the one you see in attached picture but thro...

2 years ago | 1 answer | 0

### 1

answerfitting envelope peak points

@Image Analyst thank you once more for your answer!I tried to change the code so as to receive something like this but i did not...

2 years ago | 0

Question

fitting envelope peak points

I am facing some problems trying to create a fitting curve that will pass through maximum peaks. I tried findpeaks findpeaks...

2 years ago | 2 answers | 0

### 2

answersQuestion

plot vector with string timestamp

i want to plot some data with timestamp. Timestamp is string like this: 2019-07-01T18:55:02.197040 and my data are vector. Any h...

3 years ago | 1 answer | 0

### 1

answerQuestion

New variables in a loop

Hello everyone! I'm facing some issues while trying to create new variables inside a for loop. Here is the first part of my code...

3 years ago | 1 answer | 0

### 1

answerQuestion

Replace values in collumns

Hi everyone. I am having an issue while processing some acceleration data. I retrieve in my file 8 collumns as you can see in pi...

3 years ago | 1 answer | 0

### 1

answerLinear interpolation in loop

Any ideas how to calculate and plot two R2 values (one for each line) in every figure? x=[1:0.5:12.5]; y=[0.2455,0.247,0.2485,...

3 years ago | 0

Question

Linear interpolation in loop

Hello, i'm trying to create a script for traveltime curves which will have as an output several plots with 2 best fit lines. To ...

3 years ago | 2 answers | 0

### 2

answersQuestion

Plot large CSV files with timestamp

I have a large csv file and try to load it into MATLAB and plot it with timestamp. My release is 2016b and i have 8gb of RAM. M...

4 years ago | 1 answer | 0

### 1

answerQuestion

plot traveltimes axes configuration

Hello, i have some seismic survey data (7 channels) and tried to plot them all in one figure without axes. So far so good but I ...

4 years ago | 1 answer | 0

### 1

answerQuestion

Import and plot .CSV with timestamp

I have a csv file along with timestamp and i cannot manage to plot my data correctly. My file is comma delimited, first date, th...

4 years ago | 1 answer | 0

### 1

answerQuestion

Comparing elements in one matrix in a loop

Hi All, I have a large matrix with one column containing only values. I want to make a loop and compare every time if the ave...

4 years ago | 1 answer | 0

### 1

answerQuestion

How to handle big csv files

I have huge .csv files comming daily and i want to know how i can handle them. For the moment, only to have an idea, i run a pyt...

4 years ago | 1 answer | 0