Creating 2d scatter plot with different dot size and color accoridng to vlaues in matrices

Question

SMA 2016-4-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/276944-creating-2d-scatter-plot-with-different-dot-size-and-color-accoridng-to-vlaues-in-matrices

回答： Azzi Abdelmalek 2016-4-4

I have two matrices, one is say 5x5 double with magnitude and the other is 5x5 of direction. The 'y-axis' or values along the column represent a length while the values along the row represent years.

Matrix1 =

  3    4    5    8   
  7    3    9    1
  4    5    4    3
  1    9    8    6

Matrix2 =

-0.1    -0.93    0.4    0.65    0   
.25    .71    .83    -.59    -0.7
.23    -.14    -.55    .49    .53
74.   .71    -.19    .58    -.76

Row(x-axis) =

2000 2001 2002 2003 2004

Column(y-axis) =

I want to create a scatter plot with x and y axis as above with matrix1 giving size of the dot (say everything smaller than 5 as one size and larger than 5 as another) and Matrix2 giving the color (say negative sign as red, positive as blue, yellow otherwise).

I am having a hard time implementing this with scatter plot. It is not a 3d plot, basically it says that in 2000, the 50th member had magnitude of 1 and negative direction.

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Answer 1

Azzi Abdelmalek 2016-4-4

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/276944-creating-2d-scatter-plot-with-different-dot-size-and-color-accoridng-to-vlaues-in-matrices#answer_216294

在 MATLAB Online 中打开

M1=[1    3    4    5    8   
2    7    3    9    1
2    4    5    4    3
7    1    9    8    6]
M2=[-0.1    -0.93    0.4    0.65    0   
.25    .71    .83    -.59    -0.7
.23    -.14    -.55    .49    .53
74.   .71    -.19    .58    -.76]
R1=[2000 2001 2002 2003 2004]
C1=[50 40 30 20 10 ]
[ii,jj]=meshgrid(R1,C1)
cl=sign(M2)+2
col='byr'
for k=1:numel(M1)
  h=scatter(ii(k),jj(k),'MarkerFaceColor',col(cl(k)),'linewidth',M1(k))
  hold on
end