Christian F.

Con actividad desde 2012

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Estadística

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Statistical significance of covariance
Hi, I want to compute the statistical significance of a covariance. However, I could not find any function for this purpose o...

más de 9 años hace | 0 respuestas | 0

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Pregunta

Change x-axis labels of plot
Hi everbody, I have a plot of 31 data points. However, instead of labeling the x-axis is (1:1:31), I want to set it to (-6:1:...

más de 10 años hace | 4 respuestas | 0

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Pregunta

Handling of large string array
Hi, I am dealding with a 22,000,000 x 1 string array, which causes Matlab real problems. I import the data from a .csv file ...

casi 11 años hace | 1 respuesta | 0

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Pregunta

xlsread returns error some times
Hi, I have a little Problem with xlsread. When I use xlsread to import data, I sometimes get the error message: Erro...

casi 11 años hace | 1 respuesta | 0

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Respondida
xlsread returns error some times
Some code: fname=strcat('C:\Users\...\',country); T = length(vector); firstRow = 1; lastRow = T; firstCol = 'B'; lastCol...

casi 11 años hace | 0

Pregunta

Convert cell array with different datatypes to numeric
Hi everybody, I am dealing with a cell array, where single numbers are saved as strings in the cells and some cells are empt...

casi 11 años hace | 1 respuesta | 0

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Problem with x-axis and dates in plot
Thanks a lot Kelly! Your answer works almost perfectly. One remaining problem is that matlab shows the x axis from 1990 - 202...

alrededor de 12 años hace | 0

Pregunta

Problem with x-axis and dates in plot
Hi everybody, I want to plot 228 datapoints, which correspond to monthly observations from 01/1993 to 12/2011. The x-axis ...

alrededor de 12 años hace | 2 respuestas | 0

2

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Function with xlsread including the excel file name as input variable
Maybe I should ad that I also want the variable, to which the data is stored, to be the named after the respective country, e.g....

casi 13 años hace | 0

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Function with xlsread including the excel file name as input variable
Hi, I have the following problem: I have multiple excel files named after countries, e.g. US,UK,FRA,JPN,... . Now I want ...

casi 13 años hace | 2 respuestas | 0

2

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Importing a large dataset from Excel into Matlab
Hi Titus, Thanks a lot for your reply. Unfortunately, xlsread doesnt seem to like large files and often returns some memory e...

más de 13 años hace | 0

Pregunta

Importing a large dataset from Excel into Matlab
Hello together, I'm trying to import large numerical matrices e.g. [6000 x 6000], which should be no problem since I am runni...

más de 13 años hace | 2 respuestas | 0

2

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Compare elements of two cell vectors
I found a solution. First I converted all elements of both cell arrays to strings with this code I found: numIndex = c...

más de 13 años hace | 0

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Compare elements of two cell vectors
Hi, I have two cell vectors of different lengths, containing both numbers and numbers/characters. Now, I want to delete al...

más de 13 años hace | 1 respuesta | 0

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Extract numbers from cell array
Hi, I have a cell array with both numbers and 'NA' strings for missing values. Now I want to convert the cell array to a p...

más de 13 años hace | 1 respuesta | 0

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Constrained optimization problem
Sorry for beeing imprecise. I want to estimate the 2 parameters a,b. T is a scalar and x1,x2 are 2 vectors of data. Basically...

casi 14 años hace | 0

Pregunta

Constrained optimization problem
Hello, I want to solve the following problem: argmin{1/(T-1)*SUM(e^2)}, subject to a=>0, abs(b)<=1, where e^2 is the...

casi 14 años hace | 1 respuesta | 0

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