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Read data from cell---structure--multiple fields to table
Not 100% sure of your description, but this might be what you want: >> for i=1:3, c{i} = struct('a',i,'b',100+i); end >>...

대략 11년 전 | 1

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How do I change a string or number in a table?
Mathilde, I think with that syntax, you just need to wrap that string in curly braces in order to assign it into a variable that...

대략 11년 전 | 4

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How to reshape efficiently Panel Data
This is a one-liner using the unstack function on a table. It would be something like wideData = unstack(tallData,{'Price' ...

대략 11년 전 | 0

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the number of occurences of each character of one string,in another
Another possibility: >> s = 'MEQNGLDHDSRSSIDTTINDTQKTFLEFRSYTQLSEKLASSSSYTAPPLNEDGPKGVASAVSQGSESVVSWTTLTHVYSILGAYGGPTCLYPTA...

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kmeans works with some values of k and not works with other
If f1 is a binary matrix, then it certainly does make sense to cluster your data into more than two clusters. Each column of f1 ...

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Select August data from a vector column in the format YYYYMMDD
Are the dates strings, or numbers? If you have access to R2014b, you could do either of these, depending on which you have: ...

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Time of day deduction
If you have access to R2014b, the new duration data type will help: >> d = seconds(0:40:180) d = 0 secs 40 s...

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how to get randomization seed ?
Joe, I think you want the random number state, not the seed. RNG will give you both. You description is a little vague, but I...

11년 초과 전 | 1

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random number generator to two different variables
cgo, it may be that you have created a variable called "rand" in your workspace that is shadowing the rand function. The rand fu...

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Converting strcat to use with categoricals
Andreas, I think the categorical times method is you're looking for: >> tab = table(categorical({'true','false','false','nu...

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Combining Date and Time variables (class - datetime) into 1 DateTime (class - double) array
Jenny, if you create datetimes from strings and don't specify the time portion, it defaults to midnight. If you don't specify th...

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Processing a HUGE number of timestamps
none, I don't know if you have access to R2014b. If you do, consider using the new datetime data type. On a not so fast PC, pars...

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Monthly average from time series with daily values
K_r1, if you have access to MATLAB R2014b, there are some new data types that make this more straight-forward: >> dt0 = dat...

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How to union columns in the same Variable (Array) ?
I think you are looking for UNIQUE.

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1-hour offset in time string conversion
Dennis, I'm guessing you're somewhere in Europe, and that Star Strider is somewhere in the western US. As in, UTC+1 and UTC-7. ...

11년 초과 전 | 1

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Performance of table data type
Michael, table is currently not as fast as datatypes like double and cell when you are reading or writing individual values in a...

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How to access the data type of the each column of a table
Ege, your question isn't all that clear. But I'm guessing that you don't want to be looping over every element of the table and ...

11년 초과 전 | 11

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Converting Covariance Matrix to Correlation Matrix
Jim, if you mean, "matrix operations" as in "something out of a math book", then you can right and left multiply by diag(d), whe...

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Checking if two random variables are statistically independent
Erin, consider the following analogy: generate 10 random values form a standard normal distribution. >> x = randn(10,1); ...

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setdiff error in some cases
Neesha, this appears to be a bug when one of the datasets has zero rows and the other has exactly one. A valid edge case to be s...

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Random Number Generation for Parallel Computing Toolbox
If I'm understanding correctly, the problem is that, just as with ordinary non-parallel MATLAB, the random numbers on each worke...

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Creating a Matrix with Datenum column and a string column.
Davin, as others have said, you have a cell array. That's one way you can store data of different types in one array, but it may...

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Difference between mvnrnd(,sigma) and randn()*chol(sigma)
Did you forget to reset the random number generator between the two calls? mvnrnd and randn draw random values from the same str...

11년 초과 전 | 1

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access values in dataset
Slightly more direct than Mark's suggestion: Im.Coefficients.Estimates(1) gets you the estimated intercept as a scalar v...

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Why the trigonometry results are different
1.6331e+16 is the right answer. Remember that pi/ is irrational. There is no way to represent it in double precision. The tangen...

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Clever solution sought: Summing values from an array into a vector component given in a second array
I think you are looking for accumarray.

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Can matlab functions return a table?
Asghar, in recent versions of MATLAB, there's a data type called "table". You may be asking about that. Here's a simple example ...

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Is there a way to plot original set of data onto biplot?
Michelle, the whole point of PCA is to create a new coordinate system. Plotting the original data in that coordinate system does...

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KSdensity 2D density histogram plot
It does make plots like the ones you pointed to, as demonstrated by the images on the FEX download page. You've provided no info...

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KSdensity 2D density histogram plot
Rebecca, you might look at this File Exchange submission: http://www.mathworks.com/matlabcentral/fileexchange/13352-smoothhis...

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