# Eng. Fredius Magige

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Water Infrastructural Design and O&M engineering, Piped systems Design and Optimization, Billing system design and development

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Please assist to resolve a updated requirement in multi-variables (inbuilt for function); it only undergo once update among the ten expected outputs, see line 7 and 60

Simply solved by this way ... function [Qy, DD, FUN] = SANAI2(Qy0) tic, ...

7 dagen ago | 0

How to optimize a very large CO2 piping distribution network in matlab using optimization function in matlab?

Hi Why not use GA tool; if your network is branches; it is a simple problem as longer as you have proposed minimum residual he...

meer dan 4 jaar ago | 0

how to plot segments with different colors

Hi You could turn to "g/gplot" then select the column/row as coloring characteristics as "weigh" properties requirement. It wil...

bijna 5 jaar ago | 0

could I use gplot in different linewidths and colors; how?/

Hi MatLab community I got the answers through new MatLab version, 2018. All line properties are analysed by gplot/g graph capab...

bijna 5 jaar ago | 0

| accepted

Is it possible gplot to have different line size, any help appreciated too

The new release MatLab has gplot/g with capability to generate different line width with colors by weight characteristics/functi...

bijna 5 jaar ago | 0

Question

could I use gplot in different linewidths and colors; how?/

hi all Could I use gplot to produce analytical hydraulics. As, I suppose to have output of different pipe diameters (different ...

ongeveer 5 jaar ago | 1 answer | 0

### 1

answerQuestion

how could i search error from code/script, i am using R2010b

how could i search error from code/script, i am using R2010b

meer dan 6 jaar ago | 0 answers | 0

### 0

answersIs there a way to use find function if I know there will be some empty sets?

Hi modify and use switch case, as go the second if the first fond empty set ([ ]) Thanks

meer dan 6 jaar ago | 0

Question

How can I incoporate logics of and/or in switch case problem

How can I use/incorporate and adoption of logic (and/or) combination in switch case problem. Any assistance is appreciated too ...

meer dan 6 jaar ago | 1 answer | 0

### 1

answerUndefined function 'log' for input arguments of type 'table'.

Hi Why not try: Ln_P=log10(Price); Ln_X=log10(X);

ongeveer 7 jaar ago | 0

Undefined function 'log' for input arguments of type 'table'.

Hi try: log10 it should work

ongeveer 7 jaar ago | 0

misbehaving of sort function, for looping the first and last rows not orienting to my expected results and well as specified indexes not corrects

Hi all my collegues, I got best answer by manipulation of sort as: [AA BB]=sort(Graptable(:,[12:21,1:11])); Graptable = Gra...

ongeveer 7 jaar ago | 0

| accepted

Question

misbehaving of sort function, for looping the first and last rows not orienting to my expected results and well as specified indexes not corrects

Hi misbehaving of sort function, for looping the first and last rows not orienting to my expected results and well as specified...

ongeveer 7 jaar ago | 1 answer | 0

### 1

answerDirected Graph with Node IDs as String

Hi Gplot with adjacency matrix is good option for multidirective graph, Thanks

meer dan 7 jaar ago | 0

Is there any limit in no: of variables that can be solved using matlab?

Hi Iam not sure with limitation; I developed more than 100 pages with more than 5000 variable in 2010b, and seem Matlab is OK t...

meer dan 7 jaar ago | 0

Question

Warning: Rank deficient, rank

I am calling some element/indexing from matrix to allocate some element in another matrix (not having the same row and column). ...

meer dan 7 jaar ago | 1 answer | 0

### 1

answerI have a matrix with 161*2 with one column as distance to say x- axis and y- axis to be corresponding height. But I would like to scale the x-axis to 10000 points and I want particular height at a particular distance?

Hi Use find function as long as you specific what you want by searching intended variable, either X or y column; note that any ...

meer dan 8 jaar ago | 0

how i can convert a matrix to a adjacency matrix

Adjacency matrix is characterised by its squared indexes (row X column) the same. It seem you have only two character from your ...

meer dan 8 jaar ago | 1

Related to the memory and execution time calculation for any model in MATLAB 2013a and CCS v5.5

For in case of execution time for Maltab is normally introducing tic at intended location initial or middle and toc function at ...

meer dan 8 jaar ago | 0

Finding a value in a column from a change in another column in a matrix?

Hi Use for in association with find function looking exact Nii_Ni=0.0001; note the last and first N need some manipulation, thi...

meer dan 8 jaar ago | 0

how to use if else of for loops to manipulate matrices

For can assist you in searching each index in sequence order through find function as long you know/specify appropriate conditio...

meer dan 8 jaar ago | 0

I need help with defining while loops?

Your increment is missing which support to allow application of while. Both if and else are inner within wile loop as well as to...

meer dan 8 jaar ago | 0

In an assignment A(I) = B, the number of elements in B and I must be the same.

A1=[]; >> for i=1:2; i=i A1(1,1)=i.*-1 A1(1,2)=1 %k==i, you mean that A1=[A1; []] % or you mean this A1' end

meer dan 8 jaar ago | 0

How to solve "Index exceeds matrix dimensions" error?

Hi It might need to recalling as ready reduced the row, thus try this: StayCell=StayCell for i=1:size(StayCell,1) if StayC...

meer dan 8 jaar ago | 0

| accepted

inner matrix must agree using *

Hi, it might be A= poly(1j.*wc.*exp((1j.*pi)./((2.*k)*(2.*k-1))))

meer dan 8 jaar ago | 0

Base station location optimisation-matlab

Hi visting www.yarpiz.com or search and modify * _SPEA2_*, it play alot in optimisation; note that: % Copyright (c) 2...

meer dan 8 jaar ago | 0

Question

Adjacency mathematical model code which could simplify entering 1 or 0 in adjacency matrix, assume in the environment of million nodes

Hi matlab community Do we have any coded adjacency mathematical model which could simplify entering 1 or 0 in adjacency matrix...

meer dan 8 jaar ago | 0 answers | 0

### 0

answersHow to pass control from one loop to the other loop

try this for n=1:100000 if(find(sample(:)==0.01,1)=<find(sample(:)==0.01,2)) % sample is your data num=-1*sa...

meer dan 8 jaar ago | 0

Infinite while loop for iterating data

Hi you data MM not involved and should be called for execution MM=[] % being known as first matrix I think for i = 1:lengt...

meer dan 8 jaar ago | 0