2024 Find certain values in array matlab

Find certain values in array matlab

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WebApr 30, 2024 · Find the minimum "distance" value by min. Compare the temporary "distances" array to that minimum value (resulting in some binary array), and then use find to get the corresponding indices, which finally can be used to get the values from the original input array x. WebLearn more about matrix, find, input I have a matrix, so I would like to find a value from the first column by using values from the last columns. For example, I have an specific value from the last column which I found by suing "find...

matlab - Find a matching or closest value in an array (from a …

WebOct 21, 2024 · Locating z-values at certain x-values. Learn more about find, array MATLAB. Hi. I have a 3643x3 matrix containing x and y positions, as well as depth of … WebLia = ismember (A,B) returns an array containing logical 1 ( true) where the data in A is found in B. Elsewhere, the array contains logical 0 ( false ). If A and B are tables or timetables, then ismember returns a logical value for each row. For timetables, ismember takes row times into account to determine equality. planting foxtail lily

MATLAB - how do I find the first index where value is greater …

WebMay 26, 2024 · for i = 1:size (net,1) imcoords (imcoords (:,2)==net {i,7},2) = i; end Where net is a cell array and imcoords is the Nx2 array. Just as it is written, I need to replace all values of the second column of imcoords that equal the value in the 7th column of the cell array with the index of the current row of the cell array we are in. WebJul 4, 2024 · You can use indexing to access the elements of the array. In MATLAB the array indexing starts from 1. To find the index of the element in the array, you can use … WebJan 6, 2024 · you have to substitute in that list of values, so your statement is effectively Theme Copy f (0:10) = (0:10).^2- (0:10)-1; which tries to assign to index 0, 1, 2, ... 10. But MATLAB does not permit index 0, so you have a problem. You could write Theme Copy f (x+1) = x.^2-x-1; which would then be equivalent to Theme Copy planting foxtail ferns

matlab - Using find with a struct - Stack Overflow

WebApr 10, 2024 · You can use “isequal” function to achieve this. First check if all the cell array values are equal and then compare any of the cell array value against the desired value. Theme Copy A = repmat ( {10},1,9); B = { [10,10,1], [10,10,1], [10,10,1]}; logicalVal1= (isequal (A {:}) && A {1}==10); % logicalValue outputs to true WebJan 25, 2013 · The syntax Structure.b for an array of structs gives you a comma-separated list, so you'll have to concatenate them all (for instance, using brackets []) in order to obtain a vector: find ( [Structure.b] == 6) For the input shown above, the … planting french bean seedsWebApr 10, 2024 · Much simpler (and also works for multiple val values): Theme Copy interp1 (array,1:numel (array),val) For example: Theme Copy >> array = [2,4,5,7,8,9]; % a more interesting sequence. >> val = 3.8; >> interp1 (array,1:numel (array),val) ans = 1.9 And compared to the (very complex) accepted answer: Theme Copy planting french fingerling potatoes

"WebJul 3, 2024 · So first, we started with creating a 2–by–2 matrix that contains random integer numbers among 1 to 4. Next, we used the magic function to create a 2–by–2 matrix. … " - Find certain values in array matlab

Find certain values in array matlab

Locating z-values at certain x-values - MATLAB Answers - MATLAB …

WebNov 1, 2024 · The find () function in MATLAB is used to find the indices and values of non-zero elements or the elements which satisfy a given condition. The relational expression can be used in conjunction with find to find the indices of elements that meet the given condition. It returns a vector that contains the linear indices. WebMay 17, 2024 · Here I am trying to read the value "height" knowing where the title appears, but the raw format data cannot be converted to numeric because obviously not all the …

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WebOct 5, 2012 · Because the logical matrix A>5 can also be used as index (usually a tad more efficient than indexing with find ): index = (A>5); numberOfElements = sum (index); For completeness: indexing with logicals is the same as with regular indices: >> A (A>5) ans = 6 8 9 6 8 9 Share Improve this answer Follow edited Oct 5, 2012 at 10:07 WebSep 27, 2024 · Use xlsread to import Excel data into a numeric data in a matrix. Once your data is available in MATLAB Workspace, you can then perform any operations you desire including finding values and their indices which are greater than 10. You can either use the find function or use the comparison operator as an index like A (A>10).

WebNov 22, 2024 · Method 1: Using the Nearest Neighborhood Interpolation. Using the nearest neighborhood interpolation method in MATLAB, we can find the value of the closest … WebAug 12, 2011 · From Matlab documentation: I = FIND (X,K,'first') is the same as I = FIND (X,K). You only need to indicate 'last' if you want it the other way around. – Phonon Aug 12, 2011 at 14:22 both phonon and oli will work. – BlessedKey Aug 12, 2011 at 14:24 1 oh duh. Of course. I didn't see the ,1. Sorry about that :) – abcd Aug 12, 2011 at 14:34 1

WebOct 21, 2024 · Locating z-values at certain x-values. Learn more about find, array MATLAB. Hi. I have a 3643x3 matrix containing x and y positions, as well as depth of seafloor depth along a seismic line in the Greenland Sea (seadepth_073852). I'm trying to create a matrix containing z... WebJan 24, 2013 · The syntax Structure.b for an array of structs gives you a comma-separated list, so you'll have to concatenate them all (for instance, using brackets []) in order to …

WebTo find a specific integer value, use the == operator. For instance, find the element equal to 13 in a 1-by-10 vector of odd integers. x = 1:2:20. ... MATLAB ® treats the array as a …

WebMATLAB ® treats the array as a single column vector with each column appended to the bottom of the previous column. Thus, linear indexing numbers the elements in the columns from top to bottom, left to right. For example, consider a 3-by-3 matrix. You can reference the A (2,2) element with A (5), and the A (2,3) element with A (8). planting fruit trees in front yardWebMay 17, 2024 · The code I am using is: Theme Copy [numbers,strings,raws]=xlsread (FileName); iHeight=find (strcmp (raws,'Height')) ShowRaws=raws (iHeight,3:end) height=cell2mat (raws (iHeight,3:end)) But after running it I get the following results: Theme Copy iHeight=find (strcmp (raws,'Height')) iHeight = 1 Theme Copy ShowRaws = 1×10 … planting frostweed seedsWebMar 7, 2015 · This is similar to the ismemberf function found in the File Exchange except that it is now built-in to MATLAB. Example: >> pi_estimate = 3.14159; >> abs (pi_estimate - pi) ans = 5.3590e-08 >> tol = 1e-7; >> ismembertol (pi,pi_estimate,tol) ans = 1 Share Improve this answer Follow answered Mar 6, 2015 at 21:19 chappjc 30.2k 6 75 131 Add … planting fruit trees in texasWebSome problems require information about the locations of the array elements that meet a condition rather than their actual values. In this example, you can use the find function … When the evaluation of a logical expression terminates early by encountering one of … planting fresh papaya seeds planting gaillardia seedsWebOct 24, 2024 · What I am looking for is that, when there is, for a time element, a value in the matrix that is equal to 1.5708, the value of the first field element is stored in a new array. As you can see, for the first elements of time, there is no matrix value that matches the aforementioned value of 1.5708. planting fruit from seedsWebApr 25, 2024 · The max function can also return the index of the maximum value in the vector. To get this, assign the result of the call to max to a two element vector instead of just a single variable. e.g. z is your array, >> [x, y] = max (z) x = 7 y = 4 Here, 7 is the largest number at the 4th position (index). Share Improve this answer Follow planting fruit and veg