已解决

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

12 years 前

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

12 years 前

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Add two numbers
Given a and b, return the sum a+b in c.

12 years 前

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

12 years 前

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How to plot data after being selected in Excel
what command are you using to import the data from Excel? Cant you just import them into your workspace and then specify the var...

12 years 前 | 0

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Large structures won't save
I doubt that MATLAB is out of memory. You are probable just saving the data incorrectly. Look at <http://www.mathworks.com/m...

12 years 前 | 0

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simple question
using ChangesN = find(diff(S)) would demonstrate where the value was changing and then to see how many time this happen...

12 years 前 | 1

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question with correlation
Not sure what you are asking, but this may help. a = 1; b = 20; data = a + (b-a).*rand(20,4); R = corrcoef(data); ...

12 years 前 | 0

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提问

find repeating numbers
What is the best method to find the numbers in an array which repeat most frequently. For example, say that I have a matrix of v...

12 years 前 | 3 个回答 | 0

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error using fopen
what about: a = [6,7]; filename = 'E:\test.txt'; fid = fopen(filename,'wt'); fprintf(fid,'%g\t%g',a); fclose(fi...

12 years 前 | 0

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TXT export
This code may give you some ideas: clear all a = 1; b = 20; data = a + (b-a).*rand(100,4); Heading = {'Data'}; ...

12 years 前 | 0

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TXT export
I would suggest using fprintf instead of dlmwrite: <http://www.mathworks.co.uk/help/techdoc/ref/fprintf.html> In order to ...

12 years 前 | 0

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problem in solving code for arrehenius equation,To and Ta are in kelvin
in your loop what is 'l' suppose to be? Your stating that your loop goes from 1 to 'l' but haven't specified what 'l' is. Fro...

12 years 前 | 0

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2D plot
Are you thinking of something like this? clear all x=[1,2,3,4]; y=[-1,2,-3,-4]; strValues = num2str([x(:) y(:)],...

12 years 前 | 0

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提问

removing for loop by using cellfun
Could anyone provide information on how to remove the for loop from this line of script: for i =1:length(Name); Data...

12 years 前 | 1 个回答 | 0

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How to exclude more than 1 columns from a matrix?
simple way would be: Data(:,3) = []; Data(:,5) = [];

12 years 前 | 0

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How could I get a smooth curve by "plot" function?
you could use the smoothLine function from the file exchange: <http://www.mathworks.com/matlabcentral/fileexchange/9369-smoot...

12 years 前 | 0

提问

Improving matlab skills
What is the best way of improving my matlab skills? I have been using matlab for some months now and have learnt a lot in that t...

12 years 前 | 2 个回答 | 1

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提问

significant correlation values
How is it possible to test whether the correlation between 2 time series is significant? For example: clear all a = 1...

12 years 前 | 1 个回答 | 0

1

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提问

convert Julian day to month
Consider the following: clear all depths = 1:1:12; temp = 0 + (20-0).*rand(8760,12); DateTime = datenum('2011-01-0...

12 years 前 | 1 个回答 | 0

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提问

change interval for xtick label
Consider the following example: clear all x = (0:23).'; n = numel(x); time = cellstr(datestr([ones(n,1)*[2012 3 1...

12 years 前 | 1 个回答 | 0

1

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已回答
Simple but elusive array question
should your question be like 'a' below? clear all a = [1,1,3;2,0,4;3,0,0;0,0,0]; b = arrayfun(@find,a,'un',0); If ...

12 years 前 | 0

提问

tick marks in boxplot
close all fh = figure(1); boxplot(data,time,'colors','k','jitter',1,'medianstyle','line',... 'whisker',...

12 years 前 | 1 个回答 | 1

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changing text orientation of lcolorbar
Im not sure if this answers your question but if you want to rotate the text by the colorbar (as noted above): c = colorbar...

12 years 前 | 0

提问

vectorizing a script with cellfun
I'm aiming to import data from various folder and text files into matlab. clear all main_folder = 'E:\data'; %D...

12 years 前 | 3 个回答 | 0

3

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xlsread and fwrite: remove unwanted single quotes from strings
The quotes just mean that it is a string. If you type something like stringcountry{1} it should provide the name of the countr...

12 years 前 | 0

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Finding value behind string
Couldn't you import all of the text file into matlab using textscan and then select the appropriate fields afterwards? It may pr...

12 years 前 | 0

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已回答
cells related
pre-allocate memory first, this may speed it up. <http://www.mathworks.co.uk/help/techdoc/matlab_prog/f8-784135.html> ...

12 years 前 | 0

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Retrieve data from Hard Drive (Local Directory)
I would think that you need to use the dir command. If the files are located in your C drive then: clear all TopFolder =...

12 years 前 | 0

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提问

plotting data which extends several years
Consider the following example: clear all time_2007 = linspace(1+0.0417, 366, (366-1)*24); time_2008 = linspace(1+0...

12 years 前 | 1 个回答 | 0

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