plotting 12 graphs for different months

c=1;

for i=1975:2016

for j = 1:12

monthdata(c)=mean(cleanup(4,cleanup(1,:)==i & cleanup(2,:)==j));

c=c+1;

end

end

this script makes a 1x504 matrix for the monthdata variable. this contains the mean of the temperatures of each month of the cleanup variable (made by the links). I must now take the mean of every month and plot each month individually. i must create 12 graphs representing the mean of every month but I do not know how to get thos values out of the 1x504 matrix or how to write the script that will take and plot each months mean for the cleanup variabe with all the temperatures for each day and month.

Answer 1

[Mathieu NOE]

hello

I tweaked a bit your code

load data_matrix.mat
data=SECTION_L;
data(:,1:3)=[];
row=9;
cleanup=data([1 2 3 row],:);


% year range
y1 = 1975;
y2 = 2016;

% init
x = y1:y2;
nx = numel(x);
mo_av = zeros(nx,12);
mo_max = zeros(nx,12);
mo_min = zeros(nx,12);
max_day = zeros(nx,12);
min_day = zeros(nx,12);
k = 0;

for k = 1:nx  % year loop
    
    col_dat_yr=find(cleanup(1,:)== x(k)); % find data corresponding to year = x(k)
    data_yr=cleanup(:,col_dat_yr);
    
    for mmonth = 1:12
        col_dat_mo=find(data_yr(2,:)==mmonth);
        data_mo=data_yr(:,col_dat_mo);
        mo_av(k,mmonth)=mean(data_mo(4,:));
        mo_max(k,mmonth)=max(data_mo(4,:));
        mo_min(k,mmonth)=min(data_mo(4,:));
        max_day(k,mmonth)=find(data_mo(4,:)==mo_max(k,mmonth));
        min_day(k,mmonth)=find(data_mo(4,:)==mo_min(k,mmonth));
        
    end
end

% plot montly data 
str_mo = {'Jan'   'Feb'   'Mar'   'Apr'   'May'   'Jun'   'Jul'   'Aug'   'Sep'   'Oct'   'Nov'   'Dec'};

for ck = 1:12
    figure(ck)
    plot(x,mo_av(:,ck),'-*',x,mo_max(:,ck),'-*',x,mo_min(:,ck),'-*');
    xlabel('Years')
    title([' Monthly Data : '  str_mo(ck)]);
    legend('Avg','Max','Min');
end

[Michelangelo Cannistraro]

very close, and im appretiating the help, but it needs to be in a subplot and all the months needs to be on one figure. Also the mean,max,min need to be in their own figure. So it has to be three figures with 12 graphs in each figure, one for mean, one for min, and one for max

[Mathieu NOE]

let's try this ....

load data_matrix.mat
data=SECTION_L;
data(:,1:3)=[];
row=9;
cleanup=data([1 2 3 row],:);
% year range
y1 = 1975;
y2 = 2016;
% init
x = y1:y2;
nx = numel(x);
mo_av = zeros(nx,12);
mo_max = zeros(nx,12);
mo_min = zeros(nx,12);
max_day = zeros(nx,12);
min_day = zeros(nx,12);
k = 0;
for k = 1:nx  % year loop
    
    col_dat_yr=find(cleanup(1,:)== x(k)); % find data corresponding to year = x(k)
    data_yr=cleanup(:,col_dat_yr);
    
    for mmonth = 1:12
        col_dat_mo=find(data_yr(2,:)==mmonth);
        data_mo=data_yr(:,col_dat_mo);
        mo_av(k,mmonth)=mean(data_mo(4,:));
        mo_max(k,mmonth)=max(data_mo(4,:));
        mo_min(k,mmonth)=min(data_mo(4,:));
        max_day(k,mmonth)=find(data_mo(4,:)==mo_max(k,mmonth));
        min_day(k,mmonth)=find(data_mo(4,:)==mo_min(k,mmonth));
        
    end
end
% plot montly data 
str_mo = {'Jan';   'Feb';   'Mar';   'Apr';   'May';   'Jun';   'Jul';   'Aug';   'Sep';   'Oct';   'Nov';   'Dec'};

MarkerStyle={'o','+','*','x','s','d','v','>','o','+','*','x','s','d','v','>'};

% plot "mean" 
    figure(1),hold on
    for ck = 1:12
        p = plot(x,mo_av(:,ck),'LineWidth',2,'Marker',MarkerStyle{ck});
    end
    hold off
    xlabel('Years')
    title(' Monthly Data : Mean values ');
    legend(str_mo);
    
% plot "max" 
    figure(2),hold on
    for ck = 1:12
        p = plot(x,mo_max(:,ck),'LineWidth',2,'Marker',MarkerStyle{ck});
    end
    hold off
    xlabel('Years')
    title(' Monthly Data : Max values ');
    legend(str_mo);
    
% plot "min" 
    figure(3),hold on
    for ck = 1:12
        p = plot(x,mo_min(:,ck),'LineWidth',2,'Marker',MarkerStyle{ck});
    end
    hold off
    xlabel('Years')
    title(' Monthly Data : Min values ');
    legend(str_mo);    

[Michelangelo Cannistraro]

This gives me three figures, each figure has either the max,min,mean of each month in one graph. I would need each month to have its own graph inside the figure. So, for example, for min i would need 12 individual graphs for each month but put into one singular figure with the 12 graphs in it. Unfortunatly this scipt puts all the values of minimum of every month onto one graph inside the figure for minimum results.

[Mathieu NOE]

hello

ok but making 12 subplots in one figure will make them barely readable

or you want 12 organized in 6 rows / 2 columns or 4 rows / 3 columns or ??

below suggestion with 4 x 3 plot

load data_matrix.mat
data=SECTION_L;
data(:,1:3)=[];
row=9;
cleanup=data([1 2 3 row],:);
% year range
y1 = 1975;
y2 = 2016;
% init
x = y1:y2;
nx = numel(x);
mo_av = zeros(nx,12);
mo_max = zeros(nx,12);
mo_min = zeros(nx,12);
max_day = zeros(nx,12);
min_day = zeros(nx,12);
k = 0;
for k = 1:nx  % year loop
    
    col_dat_yr=find(cleanup(1,:)== x(k)); % find data corresponding to year = x(k)
    data_yr=cleanup(:,col_dat_yr);
    
    for mmonth = 1:12
        col_dat_mo=find(data_yr(2,:)==mmonth);
        data_mo=data_yr(:,col_dat_mo);
        mo_av(k,mmonth)=mean(data_mo(4,:));
        mo_max(k,mmonth)=max(data_mo(4,:));
        mo_min(k,mmonth)=min(data_mo(4,:));
        max_day(k,mmonth)=find(data_mo(4,:)==mo_max(k,mmonth));
        min_day(k,mmonth)=find(data_mo(4,:)==mo_min(k,mmonth));
        
    end
end
% plot montly data 
str_mo = {'Jan';   'Feb';   'Mar';   'Apr';   'May';   'Jun';   'Jul';   'Aug';   'Sep';   'Oct';   'Nov';   'Dec'};

% plot "avg"
t1 = tiledlayout(4,3,'TileSpacing','Compact');
for ck = 1:12
    nexttile
    p1 = plot(x,mo_av(:,ck),'LineWidth',2);
    title(str_mo(ck))
end

% Display a shared title and axis labels by passing t to the title, xlabel, and ylabel functions.
title(t1,'Monthly Avg')
xlabel(t1,'Years')
ylabel(t1,'Temperature')