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Subscripted assignment dimension mismatch. error in for loop
Unless the difference between the indices is the same for each iteration, you'll "go boom" the first time the length is differen...

11年弱前 | 0

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How to get details from a plot?
Alternately to Walter's solution based on interpolation to a particular resolution, solve directly for the locations wanted rath...

11年弱前 | 0

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Drawing a straight line to a linear part of curve
Looks like piecewise regression to the rescue again...it has been the subject of some of my previous postings, one quite recent....

11年弱前 | 0

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define the 1/K strategy
wt=bsxfun(@rdivide,B>0,sum(B>0,2));

11年弱前 | 0

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How to perform simple interpolation of excel data on matlab?
x=xlsread('yourExcelFile'); idx=isnan(x(:,2)); x(idx,2)=interp1(x(~idx,1),x(~idx,2),x(idx,1)); doc xlsread doc i...

11年弱前 | 0

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format data for floating to integer to ascii
From help save ... '-ascii' 8-digit ASCII format. ... For ASCII file format...

11年弱前 | 0

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How to get find() results as a matrix?
Yes, if you wrap the *find* call inside *ind2sub*-- ijNONZERO = ind2sub(find(I),size(I)); But, you really don't need the...

11年弱前 | 1

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How can I use sprintf and xlswrite to insert data into a specific cell?
start = 1; ... for i = start:finish my_cell = sprintf('K%d',i); ... The superfluous *num2str* aside (as sho...

11年弱前 | 0

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How to find the indices of a point on a curve
If you have the curve as computed points, see doc interp1 Switch the normal X,Y meanings to interpolate with Y as the in...

11年弱前 | 0

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hi every body !! my question is how to get the position of the similar elements in same matrix??
Basic idea is >> find(M(1,:)==M(2,:)) ans = 1 2 4 5 >> Apply above for each row pairwise; note you'...

11年弱前 | 0

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Finding intersecting rows in column vectors of varying length?
>> [~,~,ix]=intersect([v1x(:) v1y(:)],[v2x v2y],'rows') ix = 1 5 >>

11年弱前 | 0

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Find Diverging point of two arrays
Alternatively, if similar behavior is always expected, you could fit a piecewise linear model to each curve and compare the slop...

11年弱前 | 0

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Y axis has limt e-20 to e-4 when I plot this y axis is multiply by e-4 and values like e-18,e-17 .. are showed near to x axis I want that y axis start from e-20 and have increasing step of e1 end at e-4 answer it plz
Use *semilogy*

11年弱前 | 0

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Generating random numbers with mean and std dev specified
The statistics for a normal are the mean and standard deviation, _not_ the range of the observations as for a uniform, say. In ...

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Error : Matrix dimensions must agree
(A1-B*F1)' * P * (A1-B*F1) - P < 0 where, A1 is a 12 x 12 matrix B is a 12 x 4 matrix and F1 is a 4 x 12 matrix ...

11年弱前 | 0

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With a 3D Matrix, How can I plot various 2D lineplots?
plot(reshape(data,6,[]).') will be the six in order from 1,1 to 3,2 by column order; iow each of the first column followed ...

11年弱前 | 0

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Find a mean square root velocity of each row in matrix
v=rms(x,2)/C; % presuming one C; if per row, the define the column vector and use "./C" doc rms % for details

11年弱前 | 0

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Creating character codes from text file
# is pretty straightforward to replace characters with empty, thereby removing them entirely. *regexp* is one way # build a "l...

11年弱前 | 0

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Question with accessing field in a structure
isA=ismember([Recordings.Task].','A'); [] returns comma-separated list as array, .' transforms it to column vector... Ma...

11年弱前 | 0

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Can you tell me why my x-axis grid in plot (b) shows incorrectly?
HG engine determines in default size there isn't enough room for the tick labels so defaults to the three values. Tick labels a...

11年弱前 | 1

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Add a second x-axis to a given multi-series plot
See File Exchange <http://www.mathworks.com/matlabcentral/fileexchange/4036-addtxaxis AddTXaxis> which does precisely what you'...

11年弱前 | 0

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Timestamp not converting to a string
Given the error and that *load* returned a double array, what follows was a logical next step-- >> load timestamps.mat >> ...

11年弱前 | 0

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Fit function versus lsqcurvefit
It's your choice; *fit* is a wrapper around a whole bunch of stuff to try to make a general interface for the Curve Fitting Tool...

11年弱前 | 0

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Why doesn't the graph show?
Check what your _t_ actually is (instead of what you intend it to be)...

11年弱前 | 0

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Plotting of a prediction line over scatterplot
Sort age before computing y(*); it must be they're not in order so the line follows their sequence in order on the x axis. (*...

11年弱前 | 0

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Plot two graphs in the same figure, that have different number of points from text file
Try [f1 s1 f2 s2]=textread('data_mod.txt','%f %f %f %f'); f2(f2==0)=nan; s2(s2==0)=nan; subplot(2,1,1),plot(f1,s1) ...

11年弱前 | 1

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How do I calculate the speed or a crane the moves by a rack using a pinion?
One revolution is 9.5*pi linear inches, roughly. Exactly will depend on the actual contact radius of the gear with the track. ...

11年弱前 | 0

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Is it possible to directly access integer bits in computer memory?
You're probably barking up the wrong tree conceptually in thinking you're going to do anything faster than using straightforward...

11年弱前 | 0

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Using multiple functions in combination
Looks to me like it would just be ring(t,nstars,ringradius,npoints,R,r) if you remove the lines within *ring* that redef...

11年弱前 | 0

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Inputting an equation as a variable
No need; if you set the input vector prior to calling *input* and your user can enter an executable Matlab statement, *input* ev...

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