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質問
Syntax error when dividing by a matrix variable
I keep getting an error with this line of code: q=(R*sin(theta))./(1-cos(theta)*cos(t).); R and theta are constants. t is giv...
約1ヶ月 前 | 1 件の回答 | 0
1
回答質問
Wrap part of a shape with a surface
I have the following code: %Initially written by W. Rose 20251018 %Modified by poster rdemyan clear N=80; ...
約1ヶ月 前 | 1 件の回答 | 0
1
回答質問
how to create a volume from the revolution of a variable area trapezoid
I'm looking for the work flow of how to create a volume by revolving a variable area trapezoid around the z axis. I have a form...
2ヶ月 前 | 3 件の回答 | 1
3
回答質問
Values not populating in table for variable
I have the following code: clc clear all close all %define some initial variables theta = pi/4; R = 0.0006; w = 1.318*R; ...
2ヶ月 前 | 1 件の回答 | 0
1
回答質問
Get maximum value for a row in a MATLAB table
I need to get the maximum value for a specific row in a MATLAB table (not matrix). Let the variable i specify the row number in...
4年弱 前 | 1 件の回答 | 0
1
回答質問
Concatenate strings and numbers
I'm using the following code to try and create a "Range" for importing an excel spreadsheet into MATLAB. Instead of getting a s...
4年弱 前 | 1 件の回答 | 0
1
回答質問
Linear Model with 4 parameters
I need to come up with an estimate for the starting values of the coefficients of a rational model. The rational model is: On...
4年弱 前 | 1 件の回答 | 0
1
回答質問
Need to move to another line to avoid error
My simulations is tedious and takes quite some time. To ease my burden, I have setup the simulation to run in batch mode. The ...
4年弱 前 | 0 件の回答 | 0
0
回答質問
Divide a scalar by all non-zero values in a matrix row and input results into a new matrix
I have a matrix cA. I want to input values into a matrix A that are a scalar (1E-14) divided by each element in a row of cA tha...
4年弱 前 | 0 件の回答 | 0
0
回答質問
Merge selected column elements from two matrices into a new matrix
I have two identically sized matrices. Once matrix, cA, contains the concentration of hydrogen ion while cB contains the concen...
4年弱 前 | 1 件の回答 | 0
1
回答質問
Pass curvefit start points into function
I am new to Matlab, but have somehow figured out how to create a curve fitting function that is called by the main program. I n...
4年弱 前 | 1 件の回答 | 0
1
回答質問
Create a new table by transforming data in existing table with few lines (maybe just one)
I have a table (not matrix) that has data read in from Excel. I want to change some of that data by multiplying by certain valu...
約4年 前 | 1 件の回答 | 0
1
回答質問
Output the amount of time it took to run a simulation
My simulations take a long time. I would like to be able to measure the amount of time it took for a simulation to run. I woul...
約4年 前 | 2 件の回答 | 1
2
回答質問
Semilog plot that includes curve fit
I have used the curve fitting app to generate code to plot the data and the curve fit. I am new to MatLab but it looks like the ...
約4年 前 | 1 件の回答 | 0
1
回答質問
Semilog plot in curve fitting tool
I am new to using the curve fitting tool. I have some data that I want to fit a curve to. I have clicked on the curve fitting ...
約4年 前 | 1 件の回答 | 0
1
回答質問
Ignore zero values when searching for minimum value in column of matrix
I have the following code to find the minimum value in the last column of matrix cANALY: [tnValueAnaly, tnRowAnaly] = min(cANAL...
約4年 前 | 1 件の回答 | 0
1
回答質問
Find the maximum value of a column in a table
I have a spreadsheet that is read into a Matlab table. I need to get the maximum value in column 1. I thought the following wo...
約4年 前 | 1 件の回答 | 0
1
回答質問
Highest row number in a table
I am reading an excel spreadsheet into a table in MatLab. The number of rows and columns can vary. I need to find the maximum ...
約4年 前 | 1 件の回答 | 0
1
回答質問
Scan a row and replace any values equal to zero
I need to replace any zero values in the columns of a specific row, i +1, of a matrix, cA, with a specific value, say 1E-07. How...
約4年 前 | 1 件の回答 | 0
1
回答質問
Sum of Least Squares
I have a table, Check, where I would like to subtract column 6 from column 5 (to obtain a residual) and then square the residual...
約4年 前 | 2 件の回答 | 0
2
回答質問
Dimensions of arrays being concatenated are not consistent.
I have no idea why I am getting an error in the following code: FluorDataInd = round(i/TimeFactor)+1 x=[ConcValues{1,1} Co...
約4年 前 | 1 件の回答 | 0
1
回答質問
Select a record from a table where an exact value is not provided
I have a table which I will be loading with Excel data (I haven't ever done that, but I think I can just paste data in). My que...
4年以上 前 | 1 件の回答 | 0
1
回答質問
Initializing all rows with one set of values in one half and another set in the other half
The following line of code works for initializing the first row of an array: cA(1,:)=[cA0*ones(1,(N-1)/2+1),Kw/cB0*ones(1,(N+1)...
4年以上 前 | 2 件の回答 | 0
2
回答回答済み
Retrieve curve fit coefficients
I tried using coeffvalues, but all it does is store a bunch of text including the values that I want in a 1x1 something or other...
Retrieve curve fit coefficients
I tried using coeffvalues, but all it does is store a bunch of text including the values that I want in a 1x1 something or other...
4年以上 前 | 0
質問
Retrieve curve fit coefficients
I am using a 4PL function written by someone and available from a MatLab search. I don't understand how to store the curve fitt...
4年以上 前 | 2 件の回答 | 0
2
回答質問
stop execution of code to check results
Is there a way to stop code from executing so that results can be checked. For example something like if i == 100000 Stop...
4年以上 前 | 3 件の回答 | 0
3
回答質問
Set upper and lower bounds of for loop
I would like to set the upper and lower bounds of a for loop based on the values of simulation parameters. I'm not sure how to...
4年以上 前 | 1 件の回答 | 0
1
回答質問
How to handle NAN when summing
I have the following code: for k = 1:N W(i,k)=W1*(cB(i,k))^W2; Fluor(i,k)= cB(i,k)*W(i,k)*dx; end FL = su...
4年以上 前 | 1 件の回答 | 0
1
回答質問
How to sum a portion of a row in a table and get a single value
How do I sum a portion of a row in a Matlab table and get a single value? For example assume that the row number is i and the c...
4年以上 前 | 1 件の回答 | 0
1
回答質問
if statement with greater than and less than
The following doesn't seem to be working as intended: if 0 <= MBPosition <= 2*Delta ; Even though MBPosition is within the ran...
4年以上 前 | 2 件の回答 | 0
