error size regarding contour plot

I wan to plot a contour by using this code:

fileName    = 'Simulation.txt';
nPitch      = 202;
nTSR        = 250;
%% Read in text file
fileID      = fopen(fileName);
raw         = textscan(fileID, '%f%f%f%f%f%f%f%f%f%f', 'Headerlines', 7);
fclose(fileID);
pitch       = raw{3};
TSR         = raw{7};
Cp          = raw{8};
Ct          = raw{8};
%% Re-arrange data
pitch       = pitch(1:nPitch);                  % use individual values only
TSR         = TSR(1:nPitch:end);                % use individual values only
Cp          = reshape(Cp, nPitch, nTSR, 1);     % transform vector into matrix
Ct          = reshape(Ct, nPitch, nTSR, 1);     % transform vector into matrix
disp(pitch)

It seems number of unique value of pitch and TSR is wrong and this error appears:

Error using reshape Number of elements must not change. Use [] as one of the size inputs to automatically calculate the appropriate size for that dimension. Error in pitch_tsr_cp (line 23) Cp = reshape(Cp, nPitch, nTSR, 1); % transform vector into matrix

as I checked file also in excel I have 250 uniqe TSR value amd 202 pitch uniqe value.

[Mathieu NOE]

hello

it would help if you could share the data file as well

maybe you need to zip it if it's too big (limit = 5 Mb)

[Hossein]

thank you so much for your answer, here is the main file

Answer 1

[Mathieu NOE]

hello

I believe this is what you wanted to do

I don't see why you needed the reshape action

unzip('Simulation.zip');

fileName    = 'Simulation.txt';
% WIND [m/s]     ROT [rpm]   PITCH [deg]    POWER [kW]    THRUST [N]   TORQUE [Nm]       TSR [-]        CP [-]        CT [-]        CM [-]

% Read in text file
data = readmatrix(fileName);
pitch       = (data(:,3));
TSR         = (data(:,7));
Cp          = (data(:,8));
Ct          = (data(:,9));

figure(1),
scatter3(TSR,pitch,Cp,10,Cp,'filled')    

% Interpolate the scattered data on the grid. Plot the results.
N = 100;
xd = linspace(min(TSR),max(TSR),N);
yd = linspace(min(pitch),max(pitch),N);

[xq,yq] = meshgrid(xd,yd);
zq = griddata(TSR,pitch,Cp,xq,yq);

Warning: Duplicate data points have been detected and removed - corresponding values have been averaged.

figure(2),
contour(xq,yq,zq,'ShowText','on')
grid on
colorbar('vert')