Hello,
two days ago Sebastian helped me to finish in a hurry a histogram with bar()
I would like now to understand how to make the plot with hist()
First of all, my data (after a massage) looks like :
···
-----------------------------------------
0.00e+00 1.00e-04 81039
1.00e-04 2.00e-04 4472
2.00e-04 3.00e-04 2033
3.00e-04 4.00e-04 1155
4.00e-04 5.00e-04 823
5.00e-04 6.00e-04 643
6.00e-04 7.00e-04 534
7.00e-04 8.00e-04 361
8.00e-04 9.00e-04 313
9.00e-04 1.00e-03 269
1.00e-03 1.10e-03 230
1.10e-03 1.20e-03 195
1.20e-03 1.30e-03 178
1.30e-03 1.40e-03 165
1.40e-03 1.50e-03 175
1.50e-03 1.60e-03 125
1.60e-03 1.70e-03 109
1.70e-03 1.80e-03 112
1.80e-03 1.90e-03 90
.
.
.
.
9.86e-02 9.87e-02 0
9.87e-02 9.88e-02 0
9.88e-02 9.89e-02 0
9.89e-02 9.90e-02 0
9.90e-02 9.91e-02 0
9.91e-02 9.92e-02 0
9.92e-02 9.93e-02 0
9.93e-02 9.94e-02 0
9.94e-02 9.95e-02 0
9.95e-02 9.96e-02 1
-----------------------------------------
The bins are given by the two first number columns.
For instance, the first bin is from 0.00e+00 to 1.00e-04 and has the
number of data 81039
Then I run the following script on them:
----------------------------------------------
#!/usr/bin/env python
from pylab import *
H = load ( './histo3.dat')
h = H[:, 2] # the third column
n, bins, patches = hist(h, 997, normed=0, log=0,
facecolor='lightblue', alpha=0.75)
show()
----------------------------------------------
The number 997 is because this is the number of lines I have in my
file (and, thus, the number of bins)
But the plot is ranging between
0 - 90000 --> on x axis
0 - 1000 --> on y axis
Notice in the data file that x does not get further than 9.96e-02
So the maximum should be 0.0996 and I am getting 90000
Why is that?
What am I doing wrong?
I have tried to substitute lower-case e with E in the data file but
this did not help
Any help would be appreciated.
thanks,
Pau
