plotting cells from arrays

2018 6 27
1 个回答
更新时间：2018 6 28
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0 个投票

for k2 = 1:22
data2 = mean(cellfun(@(x) x(k2,4), thething))
plot(data2,'-')
end
this is my codes. thething is my arrays contain cells. After I run the scripts, the plot just show nothing on it. Please tell me what's wrong with my code?

8 个评论
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KSSV
KSSV 2018-6-27
what is size and class of data2?
Kuang-Yu WANG
Kuang-Yu WANG 2018-6-27
it shows a number
Stephen23
Stephen23 2018-6-27
Probably plotting inside the loop is not useful. Put the values in an array, and then plot that after the loop.
Kuang-Yu WANG
Kuang-Yu WANG 2018-6-27
tried. but the result is still. the line do not shows up
Stephen23
Stephen23 2018-6-28
编辑：Stephen23 2018-6-28
@Kuang-Yu WANG: your comment states that the size of the data that you are plotting is 1x1: this will not be visible unless you change the marker type. In any case, even if you specify the marker you will not get a line unless you do what I recommended earlier: collect the data into one matrix and then plot it after the loop. The plot help has plenty of examples (in fact all of the examples) showing how to plot matrices, so start by looking at that.
Ankita Bansal
Ankita Bansal 2018-6-28
Hi, can you share " thething" ?
Kuang-Yu WANG
Kuang-Yu WANG 2018-6-28
thething = 63×1 cell array
{ 26×7 double} { 42×7 double} { 28×7 double} { 22×7 double} { 29×7 double} { 26×7 double} { 35×7 double} { 25×7 double} { 35×7 double} { 23×7 double} { 41×7 double} { 22×7 double} { 28×7 double} { 31×7 double} { 30×7 double} { 40×7 double} { 33×7 double} { 32×7 double} { 33×7 double} { 85×7 double} { 49×7 double} { 86×7 double} { 56×7 double} { 70×7 double} { 59×7 double} { 42×7 double} { 65×7 double} { 50×7 double} { 76×7 double} { 44×7 double} { 54×7 double} { 62×7 double} { 82×7 double} { 55×7 double} { 45×7 double} { 66×7 double} { 74×7 double} { 80×7 double} { 47×7 double} { 59×7 double} { 69×7 double} { 45×7 double} {105×7 double} { 98×7 double} {109×7 double} {118×7 double} {102×7 double} { 74×7 double} { 63×7 double} { 77×7 double} {169×7 double} {181×7 double} {240×7 double} {212×7 double} {150×7 double} {243×7 double} {251×7 double} {281×7 double} {281×7 double} {269×7 double} {281×7 double} {281×7 double} {211×7 double}
Stephen23
Stephen23 2018-6-28
@Kuang-Yu WANG: please upload your data in a .mat file by clicking the paperclip button.

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回答（1 个）

KSSV
KSSV 2018-6-27

0 个投票

figure
hold on
for k2 = 1:22
data2 = mean(cellfun(@(x) x(k2,4), thething))
plot(data2,'-')
end

4 个评论
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Kuang-Yu WANG
Kuang-Yu WANG 2018-6-27
Sorry still don't work.
KSSV
KSSV 2018-6-27
What is class and size of data2?
Kuang-Yu WANG
Kuang-Yu WANG 2018-6-28
it works after i use the brush to select the data in screen. however why can't I plot out a line but just many dots?

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