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统计学

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How to plot a heat map with three vectors?
I have 3 vectors of hour of day , day of a year and temperature data . The temperature data measured 4 times a day. and for 365...

6 years 前 | 2 个回答 | 0

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How can I plot histogram ?
I wanted to plot distribution of my data. I have tried excel and I am not sure which function in matlab exactly draw a plot like...

7 years 前 | 1 个回答 | 0

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提问


sim function of the neuralnetwork
I want to simulate the network that I got with the new data and I use results=sim(net, new data) should I normalize the new data...

7 years 前 | 3 个回答 | 0

3

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How to do interpolation?
I have a vector which has daily measured data for some days of a year.for example I have A=[ 1 1 4 3 ...

7 years 前 | 1 个回答 | 0

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提问


Leave one out using "cvpartition"
I am using cvpartition to partition my data (10 times) and one out at each time. If one data at the first fold is out how we ca...

7 years 前 | 0 个回答 | 0

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Dividing data for neural network
If I want to use dividerand and retraining for 10 times shoould the dividerand also be on the loop of 10 times or it should be o...

7 years 前 | 0 个回答 | 0

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What happend if the validation performance was greater than the test performance?
I have trained several networks with different hidden neurons. Now my question is what happens if I select a network with the va...

8 years 前 | 1 个回答 | 1

1

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提问


Data Normalization before using nftool?
I have 2 questions: if I am going to run (nftool Gui) should I normalize manually my data first and then data should be enter...

8 years 前 | 0 个回答 | 0

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How to plot a normal distribution graph to fit a bar graph?
I have a bar graph which in the x-axis shows the edge centers and y-axis are N I would like to plot a normal distribution graph ...

8 years 前 | 2 个回答 | 0

2

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How to run neural network with dividing data to 2sets instead of 3 sets ?
I know that in R software (neuralnet package) the datasets divides to two set of training and test sets I was wondering if there...

8 years 前 | 1 个回答 | 0

1

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A question about inpaint_nans.m
I have worked with this great function and I can't understand why this happens: If we have a vector with 100 data and some nans...

8 years 前 | 2 个回答 | 0

2

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提问


How to calculate prediction interval of ANN?
How the prediction interval of a neural network can be calculated?

8 years 前 | 1 个回答 | 0

1

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Generalization in the ANN
A network was created with 2000 records and aslo 5 networks were created with 400 records for each of them.(Note that the input ...

8 years 前 | 1 个回答 | 0

1

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提问


Is there any way to use plotregression in a subplot?
I'm plotting a linear regression using the MATLAB function plotregression plotregression(x, y) I would like to have 6 ...

8 years 前 | 1 个回答 | 0

1

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Why ANN gives this result?
I have run the ANN for prediction (curve fitting) with two different of dataset separately.The first dataset is whole 4 years of...

8 years 前 | 0 个回答 | 0

0

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提问


The test of normality for resiuals of a neural network
I have used Lillifores test to examine the normality of residuals of a neural netwoek.The result showed that the residuals of my...

8 years 前 | 1 个回答 | 0

1

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提问


How to plot using "Hierarchically grouped boxplot"?
I would like to draw a boxplot with two sets of data to compare. I am willing to use "Hierarchically grouped boxplot" a functi...

8 years 前 | 1 个回答 | 0

1

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提问


ANN with different results?!!!
I have trained ANN (for prediction)with 4years of daily data and also I trained ANN with separate years of daily data then compa...

8 years 前 | 0 个回答 | 0

0

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How to find out the distribution of missing data?
I have a vector with some missing data .I am not sure how I can realize the distribution of missing data?I know that I can use "...

8 years 前 | 1 个回答 | 0

1

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How to select some part of a matrix ?
Hi,I have a matrix with two column I would like to select data from the second column based on the condition that I put for the ...

8 years 前 | 1 个回答 | 0

1

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How can I create a vector with specified NaNs' percentage?
I have a vector with 3000 data which 500 of them are real NaNs which I am not going to do any analysis for real NaNs.I would lik...

8 years 前 | 0 个回答 | 0

0

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How to do paired t test with mean and sd?
I would like to do paired t-test with mean and standard deviation and the number of sampling. for A:mean =8.37 sd=0.53 B...

8 years 前 | 2 个回答 | 1

2

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How to optimize the parameters in fillgaps function?
I would like to use fillgaps function and I tried with my data but the results were not good. I would like to change the number...

8 years 前 | 1 个回答 | 0

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提问


How to generate random values from tlocationscale distributions ?
I would like to create some random numbers with tlocationscale distribution.I am not sure how to do it. Thanks for any help.

8 years 前 | 0 个回答 | 0

0

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How to find out the distribution of daily data with some missing values?
I would like to know the distribution of my daily data with some function in matlab.My problem is my data has some gaps(10%-30%)...

8 years 前 | 0 个回答 | 0

0

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How I can create a vector with specified blanks?
Hi,I have a time series of daily data for 4 years(4*365 data) and I would like to have a some of daily data to be blanks(gaps) t...

8 years 前 | 4 个回答 | 0

4

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提问


how to extract data ftom plotperform in neural network?
Hi I have a trained network and I already plotted the plotperform(tr).My question is how I can change the unit of y-axes? IS it ...

8 years 前 | 0 个回答 | 0

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How I can extract data from a vector based on index
I have an index and a vector I would like to have data from the vector which is not in the index!For example A=[5 3 7 8 89...

8 years 前 | 3 个回答 | 0

3

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提问


How I can fix the xlabel plot?
I have this plot <</matlabcentral/answers/uploaded_files/53328/t3.jpg>> and I would like the x-axis start at Jan and end i...

8 years 前 | 1 个回答 | 0

1

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提问


Can I say overfitting happen or not in this plot?
I have a performance plot from ANN I know that ANN toolbox prevents from overfitting .My question is that <</matlabcentral/an...

8 years 前 | 1 个回答 | 0

1

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