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elham kreem


自 2018 起处于活动状态

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统计学

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what are the steps of this result?
in matlab , if i enter this equation : integral(exp(-t^2) , 0,x) , there is no obvious result, the result is erf(x)=(2/sqrt(...

6 years 前 | 0 个回答 | 0

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how can i integrate exponential function ?
i have this function : syms y1 ; syms y2 ; syms b1x ; syms b2x; syms s11;syms s22 ; syms s12 ; syms k ;syms t; q = s11*(b1x ...

6 years 前 | 1 个回答 | 0

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help me please to write matlab code for the mathematical function attached in the pdf file ?
at the first , i put some values to run the equation ; the second , i run a part from this equation , because the part of the s...

6 years 前 | 0

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How do I rearrange this transfer function to be in negative powers of z using matlab?
try to split solution ; like z1=solve(eqn,a0) z2=solve(eqn,a1) .... and so on

6 years 前 | 0

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how can i write t truncated distribution as a likelihood?
i have this function f(x)= [(gamma((v+1)/2))/(gamma(v/2)(2π).^(1/2)* σ] *(1+((x-μ)^2)/(v*σ^2 ))).^(-(v+1)/2)*(1/ (F(b)-F...

6 years 前 | 1 个回答 | 0

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how can I write a function y(n) in terms of function x(n)?
if you run x , it is a vector 1x21 , then when you used for y(n) , you will get for x a subscript more than 21 ,such as if y...

6 years 前 | 0

提问


how to integral2?
how can i integral a function which was written in matlab but there is wrong , i dont no where it is : syms tau syms y ...

6 years 前 | 1 个回答 | 0

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how can i integrate this function ?
Hello everybody , i have the bellow function , i want to integrate it from a to b but the result is not complete , there is...

6 years 前 | 1 个回答 | 0

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Can I use whether or not a function runs as a conditional statement?
this is a short example ; if the first condition is true : x= 2 ; y = 3; if (x+y)>4 disp x , disp y else x-y end ...

6 years 前 | 0

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how to calculate similatity
first : if you change name of variables as x ,y then two variables must the same linghth ,they are not the same try this cod...

6 years 前 | 0

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I have two 1x128 matrices. I want to substract them, but only for specific columns (For examples for columns 1 to 50 and 90 to 128.
let : a=1:128 b= 2: 129 z= b(1, [1:50,90:128]) - a(1,[1:50,90:128])

6 years 前 | 0

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suppose x=[1 2 3 4 5 6] and y(1)=[1 2],y(2)=[3 4],y(3)=[5 6].how can i take like this in matlab
or this : x=1:6; k=1 y1=[x(k) x(k+1)]; y2=[x(k+2) x(k+3)]; y3=[x(k+4) x(k+5)]; y= [ y1 y2 y3] or y= [ y1...

6 years 前 | 0

提问


i want to compute a cdf for t distribution
i want to compute a cdf for t distribution from a to b , i wrote this code but it didn't run for i=1:50 fa(i)=cdf('t', 'm...

6 years 前 | 1 个回答 | 0

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What does this error mean?
WHAT was THE CODE YOU USE?

6 years 前 | 0

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help please why ??
WHAT are you want? IF YOU want to sum all the values then use Sum (A) BUt you sum the first element only. IF you help this...

6 years 前 | 1

提问


i want to determine lower and upper points in histigram
i have a column and i plot its values as a normal histogram but i can't determine this histogram between two points . su...

6 years 前 | 1 个回答 | 0

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i have an algorithm ,how can i trans this algorithm to code in matlab?
i have these steps for simulation : 1- f(x) = y 2- x=random(pd,30,1) 3-pd1=makedist('uniform') 4-u=random(pd1,30,1) ...

7 years 前 | 0 个回答 | 0

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how can i integrate a function?
i have this function fun4=@(y)(y.^2 - d1i'*y+d2i)* f1 * exp(-(y-bx).^2./(2*s*tau)) expectfun4=integral(fun4, -2,4,'ArrayVa...

7 years 前 | 1 个回答 | 0

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how can i get a matrix information in matlab?
i have a function ; how can i get a matrix information in matlab? i get all the second derivative

7 years 前 | 0 个回答 | 0

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How can i repeat the simulation method?
I have these steps to simulate data pd= makedist('normal') x = rand(pd,30,1) How can I repeat the data generation pr...

7 years 前 | 1 个回答 | 0

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how can i integrate two functions?
To Birdman , thank you very much your answer is ok ,

7 years 前 | 0

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how can i integrate two functions?
I have this function ∫y*(1/c)exp(-((y-m))^2/2st) dy where y,m,t are vectors. I want to integrate this function from ...

7 years 前 | 2 个回答 | 0

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