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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Answer 3 questions that were unanswered for more than 30 days
Awarded to Eng. Fredius Magige on 24 Aug 2019
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Feeds
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...
plus de 4 ans il y a | 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...
presque 5 ans il y a | 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...
presque 5 ans il y a | 0
| A accepté
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...
presque 5 ans il y a | 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 ...
environ 5 ans il y a | 1 réponse | 0
1
réponseQuestion
how could i search error from code/script, i am using R2010b
how could i search error from code/script, i am using R2010b
plus de 6 ans il y a | 1 réponse | 0
0
réponseIs 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
plus de 6 ans il y a | 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 ...
plus de 6 ans il y a | 1 réponse | 0
1
réponseUndefined function 'log' for input arguments of type 'table'.
Hi Why not try: Ln_P=log10(Price); Ln_X=log10(X);
presque 7 ans il y a | 0
Undefined function 'log' for input arguments of type 'table'.
Hi try: log10 it should work
presque 7 ans il y a | 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...
presque 7 ans il y a | 0
| A accepté
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...
environ 7 ans il y a | 1 réponse | 0
1
réponseDirected Graph with Node IDs as String
Hi Gplot with adjacency matrix is good option for multidirective graph, Thanks
plus de 7 ans il y a | 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...
plus de 7 ans il y a | 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). ...
plus de 7 ans il y a | 1 réponse | 0
1
réponseI 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 ...
plus de 8 ans il y a | 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 ...
plus de 8 ans il y a | 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 ...
plus de 8 ans il y a | 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...
plus de 8 ans il y a | 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...
plus de 8 ans il y a | 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...
plus de 8 ans il y a | 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
plus de 8 ans il y a | 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...
plus de 8 ans il y a | 0
| A accepté
inner matrix must agree using *
Hi, it might be A= poly(1j.*wc.*exp((1j.*pi)./((2.*k)*(2.*k-1))))
plus de 8 ans il y a | 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...
plus de 8 ans il y a | 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...
plus de 8 ans il y a | 1 réponse | 0
0
réponseHow 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...
plus de 8 ans il y a | 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...
plus de 8 ans il y a | 0
Plotting in for loop not working. Averaging matrix over ranges.
Hi You might review few lines, specially for and if, as to be: for d=1:3:max(datafile.data(:,28)) %max is around 16 ...
plus de 8 ans il y a | 0
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