Feeds
質問
Problem recovering the filtered signal using IFFT
Hello! I have geomagnetic field values, 1 value each month, for several years. What I want to do with the data is to erase yearl...
約7年 前 | 1 件の回答 | 0
1
回答質問
How can I save ALL workspace variables?
Hello! I have 7104 .mat files, each of them has different variables inside. I was asked to transfer these matlab files to .cdf o...
8年弱 前 | 3 件の回答 | 0
3
回答質問
Something is wrong in the Fourier transform...
Hello! I have data, which are time-series of the magnetic field. It consists of 365 values per year for 8 years. I need to calc...
約8年 前 | 2 件の回答 | 0
2
回答質問
XCORR of two harmonic signals has a triangular shape. Why?
Hello! I have two signals (H and Z), which are almost harmonic. Both vectors contain 4018 elements each (I attach the picture)....
約8年 前 | 1 件の回答 | 0
1
回答質問
XCORR returns NaNs on interpolated data
Hello! I have a vector A of dimension 12*1 with monthly values of temperature, and a vector B of dimension 365*1 with daily val...
約8年 前 | 1 件の回答 | 0
1
回答質問
How to compute Fourier transform of a signal?
Hello! I have three arrays of data (see the picture). There is 1 measurement every day for 11 years. I know that for fft I need...
約8年 前 | 1 件の回答 | 0
1
回答質問
Why is not cross-correlation symmetric with respect to zero?
Hello! </p> I need to create a harmonic signal, then to add some noise and to calculate auto cross-correlation. I know that au...
約8年 前 | 1 件の回答 | 0
1
回答質問
How to read data from txt between 2 lines with the same symbol?
* Hello! * I have a lot of .txt files (<1000 lines each). The data format is the following (the picture): there are some line...
8年以上 前 | 1 件の回答 | 0
1
回答質問
How to find files with specified filenames within a folder?
Hello. My problem is the following. I have downloaded tons of data from Intermagnet (I'm conducting research connected with mag...
9年弱 前 | 1 件の回答 | 0
1
回答質問
Why do subplots created in a loop disappear on a new iteration?
Hello. I am doing research for my thesis, which I have almost completed, except for one thing. I have to create a big spreadshee...
9年弱 前 | 1 件の回答 | 0
1
回答回答済み
plot X as a function of Y
If you want to create a plot you have to write plot(y,x). What do you mean saying you want to create a 3d-plot AS a function of...
plot X as a function of Y
If you want to create a plot you have to write plot(y,x). What do you mean saying you want to create a 3d-plot AS a function of...
9年弱 前 | 0
質問
How to create several subplots without tick labels in a loop?
I have got the following problem. I have several subplots within one figure, that are created in a loop. I want to get rid of th...
9年弱 前 | 1 件の回答 | 1
1
回答質問
A problem with a matrix
Hello. I am doing research connected with magnetic observatory data. I have 50 observatories and each of them produces 12 dire...
約9年 前 | 1 件の回答 | 0
