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matlabuser12


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Using findpeaks to find peaks and troughs, how can I make sure that I always find a peak then a trough?
[Maxima,MaxIdx] = findpeaks(Peak,'MinPeakHeight',mean(Peak),'MinPeakDistance',10); Mins=1.01*max(Peak)-Peak; [Minima,Min...

plus de 8 ans il y a | 1 réponse | 0

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Question


Build an array with different column lengths
Have one large data set (3333x1 double) and am trying to section out rows based on certain index values. If I have say 10 index ...

plus de 8 ans il y a | 1 réponse | 0

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Question


How to compare the length of two matrices and pick the shorter one?
have two nx1 matrices that I want to say for whichever matrix is shorter use that length.

plus de 8 ans il y a | 1 réponse | 0

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Question


How to plot into a PNG image?
I have a script that plots a 3x3 grid of values as a colormap: Data = [1:1:9; 1 2 3 4 5 6 7 8 9; 1 2 3 4 5 6 7 8 9 ;1 2 3 ...

plus de 8 ans il y a | 1 réponse | 0

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Have a floorplan picture I want to plot time spent per area for a day as a heatmap
I have a picture of a floor plan, that is sectioned off into a 3x3 grid. I also have time spent in each grid zone (1-9) for a da...

plus de 8 ans il y a | 1 réponse | 0

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Question


Matlab to write binary files?
I am using an old dos program that states in its documentation: input files (*._IN) are in binary Format. They cannot be edi...

plus de 8 ans il y a | 2 réponses | 0

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Question


What is the simplest method to "tag" start and end rows of data in my csv for easy parsing through matlab?
I collect data with an NI Daq and then read in the csv to matlab for processing. the csv has ~10columns and the last column has ...

plus de 9 ans il y a | 1 réponse | 0

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Question


Using reshape to get a block averaging of data when it is not divisible by the block?
Have varying data sets of varying lengths i want to block average (every 10 points), block max/min, stdev, etc. How can I use re...

plus de 9 ans il y a | 2 réponses | 0

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Question


Grabbing numbers from a string
I have a data set where some numbers are numbers like (124,456, 987) and others are numbers with an letter on them like (123P,23...

plus de 9 ans il y a | 1 réponse | 0

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Question


Trying to cycle through my variables with a for loop.
for i=1:20 Data = sprintf('Data%i',i); DataNew(:,i) = mean(Data); end I have 20 Data arrays labeled Data1-Data20...

plus de 9 ans il y a | 1 réponse | 0

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Question


How to play my video while my graph animates?
I am trying to update a graph animation in sync with a played movie. How do i structure the while loop so that when the movie(.....

plus de 9 ans il y a | 1 réponse | 0

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Question


Running two portions of a script simulateneously?
I am trying to update a graph animation in sync with a played movie. How do i structure the while loop so that when the movie(.....

plus de 9 ans il y a | 1 réponse | 0

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Question


Setting current directory as save location for executable guis?
I have a gui that performs an xlswrite function and creates a file called summary.xlsx in a folder. When I turn this into an exe...

plus de 9 ans il y a | 1 réponse | 0

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Question


Adding full figure edit options to an executable?
I have a matlab executable which generates a plot in a figure, but the figure only has bare minimum options available (legend, z...

plus de 9 ans il y a | 2 réponses | 0

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Question


How to play video at specific timestamp?
Have a video that I want to play in a figure but at a specific time, like start 10 seconds into the video for example.

plus de 9 ans il y a | 1 réponse | 0

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Question


Table data is not editable at this location, why won't this checkbox let me check it?
f = figure; columnname = {'X' , 'Y'}; Selection = {'A','B','C','D','E'} [vals{1:numel(Selection),1}]=deal(false) ...

plus de 9 ans il y a | 1 réponse | 0

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Réponse apportée
How to load own dataset
you can do it outside the command line by going to import data on the main ribbon, or using some sort of file read. I'm not sure...

plus de 9 ans il y a | 0

Question


Creating a dynamic plotter on the gui
I have a struct of data which basically has a a data name (like Task A, Task B, etc) and each name corresponds to a data set wit...

plus de 9 ans il y a | 1 réponse | 0

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Question


Single function like stepinfo but for general stats?
I really like how stepinfo gives me the characteristics of my data in a single line. Is there a similar function that will give ...

plus de 9 ans il y a | 1 réponse | 0

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Question


Insert a changing number into a variable in matlab?
I am defining some variables based on gui inputs, like so: day1name=get(handles.day1name,'String'); day1start = da...

plus de 9 ans il y a | 2 réponses | 0

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Question


How to maniplulate data in one array if conditions are met in another array?
I have an array of numeric data, and I have another with the string headers of that data. these two arrays match in terms of wha...

plus de 9 ans il y a | 2 réponses | 0

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Question


Can matlab be programmed to create flow diagrams like yEd but with math?
yEd creates flowchart type diagrams, or network diagrams. But it does not have a math option where you can sum values coming in ...

plus de 9 ans il y a | 1 réponse | 0

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Question


Have a list of strings that I want made into checkboxes on my gui
I have a txt file with strings in them like so Text Text2 Text3 and so on. I want to have the gui read in the txt f...

presque 10 ans il y a | 1 réponse | 0

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Question


Add value in column to previous?
data_input=[1;1;1;1;1;1;1] data_output=[1;2;3;4;5;6;7] how can i achieve this with a for loop? basically take the prece...

presque 10 ans il y a | 1 réponse | 0

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Réponse apportée
Lowess smoothing has 49,226 calls , taking forever, anyway to speed up?
I found the problem. In my smooth call: I am doing a double smoothign for both the (x,y) variables. so it is comparing all of th...

presque 10 ans il y a | 0

| A accepté

Réponse apportée
How can I interpolate my data?
http://www.mathworks.com/help/matlab/math/interpolating-scattered-data.html what do you mean by interpolate this data and fin...

presque 10 ans il y a | 0

Question


Lowess smoothing has 49,226 calls , taking forever, anyway to speed up?
I have an array that is 24613 cells of data and I am trying to run: if true Smooth=smooth(GraphTime, Data(:,1),800,'l...

presque 10 ans il y a | 2 réponses | 0

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Question


Convert Excel String time to number
My excel spreadsheet that I am reading into matlab with xlsread has text for the time in the format of 11:23:23 AM for example. ...

environ 10 ans il y a | 2 réponses | 0

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Réponse apportée
Place text between vertical lines on graph
never mind i am retarded and can just do (task1+task2)/2 to place it between all my tasks...

environ 10 ans il y a | 0

| A accepté

Question


Place text between vertical lines on graph
I have several lines on my graph made like so: if true line([Task1 Task1],[0 500],'Color',[0 0 0], 'LineStyle','--'); li...

environ 10 ans il y a | 1 réponse | 0

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