help on graph (w/o common matrix plotting built-in functions)
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Dear all,
based on a matrix of zeros and ones, let's say 10 x 365 (10 years a 365 days), I would like to plot a '-' for a one and leave the position blank ' ' for a zero.
Thus, the graph should e.g. look like:
....
------ --- --- ---- ---- ------ ----- --
-------- ------ --------------- -----------
------ -- ---------- --------- ---------
----- --------------- ------ ---------- -
.....
Any hint appreciated.
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Les Beckham
le 20 Mai 2022
In that case, maybe something like this will get you close.
A = randi(2,10,365)-1;
x = 1:size(A,2);
y = size(A,1):-1:1;
for i = 1:size(A,1)
A(i,:) = A(i,:)*y(i);
end
A(A==0) = NaN;
for i = 1:size(A,1)
line(x, A(i,:), 'Marker', '_', 'linestyle', 'none', 'MarkerSize', 0.1)
end
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Plus de réponses (5)
Les Beckham
le 20 Mai 2022
A = randi(2,10,365)-1
str = repmat(' ', size(A));
str(A==1) = '-';
disp(str)
3 commentaires
Les Beckham
le 20 Mai 2022
How clever! I'm suprised that that works. I would have never thought to index into a 1x2 array with a larger index array.
Steven Lord
le 21 Mai 2022
The size of the index array doesn't matter for linear indexing. What matters are the values in that array.
Patrick Laux
le 20 Mai 2022
1 commentaire
Steven Lord
le 21 Mai 2022
A = randi([0 1], 5, 5)
spy(A)
If you really want dashes:
figure
spy(A, '_')
DGM
le 20 Mai 2022
Modifié(e) : DGM
le 20 Mai 2022
In the spirit of ridiculousness, here is my attempt:
% random binary data
data = randi([0 1],10,10)
data =
1 1 0 0 1 1 1 1 0 0
0 0 0 1 0 1 1 1 1 1
0 0 0 1 1 0 0 0 1 0
1 1 1 1 0 1 0 0 1 0
0 1 0 1 0 1 1 0 1 1
0 1 0 1 0 0 1 1 1 0
0 0 1 0 1 0 1 0 0 0
0 0 0 0 0 1 1 0 0 1
1 0 0 0 1 1 0 1 0 1
0 1 1 0 0 1 0 1 0 1
% convert to char data (space and full-width crossbar)
charmap = char([32 196]);
chardata = charmap(data+1)
chardata =
10×10 char array
'ÄÄ ÄÄÄÄ '
' Ä ÄÄÄÄÄ'
' ÄÄ Ä '
'ÄÄÄÄ Ä Ä '
' Ä Ä ÄÄ ÄÄ'
' Ä Ä ÄÄÄ '
' Ä Ä Ä '
' ÄÄ Ä'
'Ä ÄÄ Ä Ä'
' ÄÄ Ä Ä Ä'
% construct an image by flowing char glyphs into a rectangular box
charsize = [8 8]; % depends on the selected font
datasize = size(chardata);
tsize = [NaN datasize(2)*charsize(2)+charsize(2)/2];
outpict = textblock(chardata(:)',tsize,'font','compaq-8x8','tightwidth',true,'hardbreak',true);
% display the image with character-centered tickmarks
xrange = 0.5:datasize(1)+0.5;
yrange = 0.5:datasize(2)+0.5;
imagesc(xrange,yrange,1-outpict)
colormap(gray)
Alternatively, instead of using a full crossbar, you can just use
charmap = ' -';
and get
Bear in mind those are different random data. The point is that the bars don't touch.
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