How to trace only peaks from excel data

Good morning, I need your help, please. I have an excel file containing in the first two columns position data X and Y . In the third of the data which represents time and finally in the fourth column of the data which represents frequencies. my objective is to plot the most important peaks of the frequency graph according to the X and Y axes. here is an example. I first plotted the frequencies as a function of time but I can't plot only the largest peaks.

Here my code :

clear all 
close all 
hold on 
clc 

[data,Vt,T] = xlsread('DataBin.xlsx','Feuil2','A4:D16359');

Xdata=data(:,1); 
Ydata=data(:,2); 
timedata=data(:,3); 
freqdata=data(:,4);

X = Xdata;
Y = Ydata;
time = timedata;
freq = freqdata;

X = data(4:size(Xdata,1),1);
Y = data(4:size(Ydata,1),2);
time = data(4:size(timedata,1),3);
freq = data(4:size(freqdata,1),4);

Thanks in advance.

Answer 1

[newport portnew]

I don't understand Why when I run this code , it's doesn't work.

Error in findpeaks>parse_inputs (line 199) validateattributes(Yin,{'double','single'},{'nonempty','real','vector'},...

Error in findpeaks (line 136) = parse_inputs(isInMATLAB,Yin,varargin{:});

Error in Pic_function (line 24) [ peak_value , peak_location ] = findpeaks (signal,'minpeakheight',0.1);

clear all close all hold on clc

[data,Vt,T] = xlsread('DataBin.xlsx','Feuil2','A4:D16359');

Xdata=data(:,1); Ydata=data(:,2); timedata=data(:,3); freqdata=data(:,4);

X = Xdata; Y = Ydata; time = timedata; freq = freqdata;

X = data(4:size(Xdata,1),1); Y = data(4:size(Ydata,1),2); time = data(4:size(timedata,1),3); freq = data(4:size(freqdata,1),4);

signal = plot(time,freq); [ peak_value , peak_location ] = findpeaks (signal,'minpeakheight',0.1);

Answer 2

[KSSV]

Read about max, min and findpeaks.

[newport portnew]

Yes I read findpeak but it only allows to identify peaks but not to trace only peaks