wesleynotwise
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Accept 5 answers given by other contributors
Awarded to wesleynotwise on 20 Jul 2017
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Frage
pvalues = zero?
The pvalues of the coefficients and model are equal to zero. Are they too significant to be true? mdl = Nonline...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Adding a New Column to a Table but get a warning?
Hello. I wanted to add a new column from a (500 x 4) Table, with some conditions, to another (500 x 13) Table. Not so sure why...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
RMSE of Weighted Nonlinear Regression
I fit a nonlinear model with weight and without weight. Whilst there is an improvement in R-squared in the weighted model, its R...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
if elseif else in Table
I have a column in my table containing numerical data, where I want to make them into 4 specific groups in a new column in the s...
mehr als 7 Jahre vor | 2 Antworten | 1
2
AntwortenFrage
Artificial Neural Network - Equations?
Let say I want to predict the strength of a composite material using ANN. Is it possible to return a series of equations in the ...
mehr als 7 Jahre vor | 4 Antworten | 0
4
AntwortenFrage
Initial values in nlinfit or fitnlm
I am trying to run a non-linear multiple variable model in Matlab. The model has about 20 coefficients. I have been using 1s as ...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
nlinfit and lsqcurvefit for problems with multiple variables?
Am I right to say that the *nlinfit* and *lsqcurvefit* are unable to solve non-linear problem with multiple variables?
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to put 2 subplots as 1 subplot without merging their data?
I have created five subplots in one figure, where the data was grouped based on the country, say: Country A, B, C, D and E. ...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Nonlinear regression + Cross Validation = possible?
Hello. World. I want to know is it possible to perform cross validation on nonlinear regression model?
mehr als 7 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Scatter chart: How to adjust the transparency of marker?
Wondering how to change the transparency of marker from plot tools? At the moment, I can only adjust the line thickness and lin...
mehr als 7 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Axis interval of scatter plot
Is there a more intelligent method to specify the interval of the axis of a scatter plot? fig1 = gscatter(x,y, 'k', '.') ...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Power Log Zero Returns as Zero?
Can someone solve this maths mystery in Matlab? why log(0) returns as -Inf, but 5^log(0) returns as zero? log(0) ans...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Adding new columns in a Table?
I think this should be quite simple, but somehow I couldn't find the solution online. I have two Tables, eg: Table1 and Table...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to find a particular data in a residuals plot
I have a residual plot ( _using plotResiduals(mdl, 'fitted')_)where the data is taken from a Table. Since I know the row num...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Table back to its original form?
So one can sort the data in any column of a table in an ascending / descending order from the drop-down list on the heading. How...
mehr als 7 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Heteroscedasticity: plotResiduals vs archtest
I know that one can use ' *plotResiduals(mdl, 'fitted')*' to check the presence of heteroscedasticity in the residuals. Wonderin...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
anonymous function + IF + fitnlm = possible?
Hello. Is it possible to have an anonymous function combined with an If statement in a non-regression function? something like ...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Scatter plot: Data exclusion
I have my data stored in a table form, and I would like to have a scattered plot without certain data. How can this be done? ...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
ismember: how to read the results quicker?
Hello. I would like to know how to return real values instead of logical values when the 'ismember' is used? eg: A = [1 ...
mehr als 7 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Scattered plot for different groups of data, subplot?
Let say I have a table which contains three columns, Country (4 countries), Variable x and Response y. I would like to know how ...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Removing leverage = infinite loop?
I have a nonlinear model and I used plotDiagnostics (model, 'leverage') to find observations with high leverage. However,aft...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Re-order legend but mismatch colour?
I want to differentiate my data in a scattered plot based on the source of data, e.g. USA, Italy, UK and France. I realised that...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Plot: Predicted vs Actual Response and Residuals vs Predictors?
I have a regression model, and I would like to create two plots to examine its validity. The first plot is predicted vs actua...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Nonlinear regression with categorical predictor?
Suppose I have the following equation y = (k1|x1)*(k2*x2)*(k3*x3^(1/k4)) where k1 is a coefficient depending on variable ...
mehr als 7 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
gname to display more than one label
I would like to know is there a way to display two labels for a point? This command does not work gname(car_model, car_y...
mehr als 7 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
Reading Table at fixed interval?
For the following two commands Table(1:10, :) %first Table(1:2:10, :) %second I know the first command will show the ...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to assign specific value for character
I have a cell array of character vectors, let say A = {'r' 'b' 'g'; 'g' 'r' 'b'; 'b' 'r' 'g'} how do I change this chara...
mehr als 7 Jahre vor | 2 Antworten | 0
2
Antworten
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