Ajay Goyal
Indian Institute of Technology Delhi
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Awarded to Ajay Goyal on 09 Oct 2019
Accept 5 answers given by other contributors
Awarded to Ajay Goyal on 20 Jul 2017
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Awarded to Ajay Goyal on 20 Jul 2017
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Awarded to Ajay Goyal on 20 Jul 2017
Feeds
Frage
How may I change certain areas of a geometry (specified by point point) with reference to a geometry?
I have two pointclouds containing x,y,z cordinates of two similar geometry. Say A and B. A is suppose a square of size 1mm by 1m...
mehr als 2 Jahre vor | 1 Antwort | 0
1
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Can anyone help me in estimateGeometricTransform3D command?
I have two point clouds (representing two 3D tea-kettles) of similar shape in which second one is scaled up by a factor 2. I ha...
mehr als 2 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
How to convert data around a circle for circular statistics?
I have generated 36 values at equidistant distances at an interval of 10. I want to convert it to circular data. Is there a way?...
etwa 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to see difference in color which has been overlapped between two fills?
I have two curves; for example clc; clear all; close all; x1=[-1:0.01:1]; y1=1-x1.^2; x2=[-2:0.01:2]; y2=1-x2....
etwa 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to determine over-fitting from non linear least square optimization tool?
I have developed a non-linear equation. It has 4 parameters to be optimized. I have trained the function with 10 experimental da...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to add standard errors in bar charts (hatched)?
I have got 4 categories (say A,B,C,D) each having 3 values i.e. bar_3_categories=[1 2 3 4;1 2 3 4;1 2 3 4]; Error bars are e...
etwa 7 Jahre vor | 1 Antwort | 0
1
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How to check optimized values after stopping the program midway?
I am using lsqnonlin (Levenberg-Marquardt algorithm) code to optimize 4 variables as can be seen in attached file. Many times I ...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to define following function?
I have two row vectors (say A1(1:5) and B1(1:5)). I wish to define a function 'a(t)' as given below. I am repeatedly getting err...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to generate a function from x-y vectors?
Hello MATLAB users. I got two vectors (say x and y). Is there any way to create a function i.e. y=f(x). I do not want the expres...
mehr als 7 Jahre vor | 4 Antworten | 0
4
AntwortenFrage
How to convert time signal in frequency signal?
I have an equation de/dt=C1*(ds/dt)+C2*s. C1,C2=constants, e=strain, s=stress, d/dt=derivative wrt time (t). I want to conve...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to make contour plots at a given section?
I got a circle. It has values ranging from -5:5 at its various points including circumference. I want a similar plot as attached...
fast 8 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
Can anyone help me with fourier series of a signal?
I got a signal as attached. My doubt is can I break the signal in a triangle and a straight line, then calculating fourier serie...
etwa 8 Jahre vor | 1 Antwort | 0
1
AntwortFrage
what are x-axis and y-axis labels in residual plots in stepwise regression?
I have generated histograms residual plots in stepwise regression. As per my understanding, the x-axis is residual and the y-axi...
mehr als 8 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
How to get critical values and P values of F statistic and T statistic?
I am trying to develop a multivariable regression model having 2 input vectors and one output vector. there are 10 observations....
mehr als 8 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to get possible combinations of variables?
Dear Friends, I have got 20 vectors named (A1,A2...A20) with say 500 observations. I wanted to generate all possible combination...
mehr als 8 Jahre vor | 1 Antwort | 0
1
AntwortSum each element in a matrix with the previous elements on the same diagonal
Simple Brother, Use a(i,j)=a(i,j)+a(i-1,j-1) in your double loop (for i=1:2000(for rows); for j=1:2000(for columns)) Thanks fo...
mehr als 8 Jahre vor | 0
Frage
How to Invert functions with same input variables?
Dear Sirs, I want to invert following set of equations: Y(i)=a(i)X1+b(i)X2+c(i)X3+d(i)X1X2+e(i)X1X3+f(i)X2X3+g(i)X1^2+h(i)X2...
mehr als 8 Jahre vor | 1 Antwort | 0
1
AntwortLeast squares method of estimation and removing of outliers
Solve inverse of the problem and use stepwise linear regression (stepwiselm) or simply least square method (regress). Then gener...
mehr als 8 Jahre vor | 0
Frage
How to determine whether to remove a generated outlier or not in stepwise regression?
Dear Friends, I have developed a stepwise regression model. I am getting a outlier. I need to know the effective weight of the ...
mehr als 8 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to predict output values of new data in stepwise regression?
Dear Friends, I have generated a stepwise quadratic model using stepwiselm. At start of running the code, I have divided my trai...
mehr als 8 Jahre vor | 1 Antwort | 0
1
AntwortFrage
HOW TO CHOOSE EFFECTIVE PARAMETERs IN STEPWISE REGRESSION?
Dear friends, I got 80 independent variables and one dependent variable with 1000 datasets. I was performing stepwise regressio...
mehr als 8 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Should I expect to get a better answer from stepwise regression model if input variables are 20 with 550 observations and one output variable
I am using stepwise regression to generate a model. There are 20 input variables and 1 output variable with 550 observations. I ...
mehr als 8 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
I am getting p values more than 0.05 while doing step regression? How to handle the resulted equation
Dear Sirs, I am using stepwise regression using 'stepwiselm' function. In my resulted equation, I am getting following p values...
mehr als 8 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to generate a signal with single frequency from a signal with number of frequencies?
Sirs, I have got a signal with 17 frequencies (side by side) i.e frequency 1 is followed by 2 and then 3..... upto 17Hz. I am ...
fast 9 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
Numbering lines passing through centre of circle and located at 0,90,180,270 degrees
I have a circle of radius (say 5mm) and centre (say(0,0)). I have drawn 4 lines each at 90 degrees all passing trough centre of ...
fast 9 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to get mathematical expression of input and target in artificial neural network
I have four input vectors of (1*36) matrix each and one output vector (1*36). I want to develop a coding using ANN which not onl...
mehr als 9 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
How to get Equation of Function developed by ANN (Curve fitting) after training
Can I get equation of the function in Curve fitting using Artificial Neural Network after training the inputs and outputs
mehr als 9 Jahre vor | 1 Antwort | 0
1
AntwortHow to get centroid specific part of an image
Christiaan Sir, Your help is deeply appreciated. You made my day since I was working on this problem for last 3 days. I have ma...
mehr als 9 Jahre vor | 0
Frage
How to get centroid specific part of an image
I am intended to compute centroid of a part of image. I am getting centroid of all parts of the image which makes me confused of...
mehr als 9 Jahre vor | 3 Antworten | 2
3
Antworten
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