Question

1-D Convection Equation is converging to 0. Thomas Algoritm using Back Time Center Scheme

Hi guys, this is a very mathermatical question i guess. I have the following code for plotting 1-D convection equation in time ...

2 months ago | 1 answer | 0

Question

I need help solving a PDE using Thomas Method

Hi, I am trying to use MATLAB for solving PDEs for a MATH course I am taking but I am having issues with the coding section bec...

2 months ago | 0 answers | 0

Question

How can I convert this pseudo code to matlab?

Hi guys, I am working on this little math problem where I have to convert a pseudo code to matlab to see how accurate Lagrange ...

5 months ago | 1 answer | 0

Answered

How to import an excel file that contains an absolute time column?

I can't edit the format since these files are auto generated by a software I can't edit. And I get thousands of files a month.

How to import an excel file that contains an absolute time column?

I can't edit the format since these files are auto generated by a software I can't edit. And I get thousands of files a month.

6 months ago | 0

Answered

How to import an excel file that contains an absolute time column?

doing it that way the date data is not representative anymore. There has to be a more efficient way to conserve the date format ...

How to import an excel file that contains an absolute time column?

doing it that way the date data is not representative anymore. There has to be a more efficient way to conserve the date format ...

6 months ago | 0

Question

How to import an excel file that contains an absolute time column?

I have a file that contains some data and one of the colums is in absolute time format. I am using the xlsread function but the ...

6 months ago | 3 answers | 0

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Replacing NaN with last real value

Hi folks, I have hundreds of excel files in .csv format that I have to "clean" getting rid of all teh NaN values and replacin th...

6 months ago | 1 answer | 0

Question

How can I deleate or replace with a 0 all the Nan, Inf anf -Inf values in a time series from the biggining to the end?

Ive got a time series from Simulink that changes its size every time I run the simulation and I want to get rid of all the Nan a...

10 months ago | 2 answers | 0

Question

How can I device a time series A by a Time series B if they are the same size?

I have 2 time series, they are both the same size but I don't know how to devide time series A by time series B. Also, Once is ...

10 months ago | 1 answer | 0

Question

How can I code so if there is a transient segment, then a steady segment, and a transient segment again, and the timelapse is less than 120 seconds, then make that steady segment transient.

%Determine Segments of percent load devided in Transient and Steady clearvars -except PercentLoad Time %Get rid of noise by ...

10 months ago | 0 answers | 0

Question

How can I create a legend on the interception of 2 lines on a plot with its coordinates?

I have this code so far, I want to get the interceptions of plot(CrankAngle1,n1) and plot(xl(:)*[1 1], [1;1]*[0.5 0.9], '--r'). ...

10 months ago | 0 answers | 0

Question

How can I interpolate a point in a x,y graph given only one of these values and being the point on the line?

I have a sets of graphs where I want to show 2 points on each plot. One on .5 (y value) and the other on .9 (also y value) I ha...

10 months ago | 0 answers | 0

Question

How can I code so: if a value on an array is false(0), and there is another false later on the list,all the 1's between (true) all the 1's turn into 0?

After processing some data I have ended up with a boolean. Now I want to gropup different sets of data by 0's and 1's but if the...

10 months ago | 2 answers | 0

Question

Can I write a script that keeps rows that are within 5% and 10 cells above and below a specific cell?

The idea is to have a script that takes stable data eleminating the peaks and valleys. I want to have that cell compared with ...

11 months ago | 1 answer | 0