matplotlib | CSCI040 Homework #2 | Machine Learning library
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CSCI040 Homework #2
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QUESTION
In a python3 command line session, once I start plt.show()
. I can not type any further python3 commands. Is there a way to make plt.show()
nonblocking?
ANSWER
Answered 2021-Jun-15 at 22:11use plt.ion() before plt.show()
QUESTION
Here's my csv file CSV
I'm trying to take the mean of columns "Angle Min" and "Angle Max" and then multiply every row in the resulting dataframe with the "Angle Conversion Factor" in cell D8. Likewise I want to do the same with "Torque Min" and "Torque Max" (get the mean and then multiply the resulting dataframe by the "Torque Conversion Factor" in Cell E8).
Here's my code so far:
...ANSWER
Answered 2021-Jun-15 at 21:54Your AngleConcFactor
and TorqueConvFactor
remain as 1x1 DataFrames in your code.
Just a slight cleanup of your function might give you what you need:
QUESTION
I am trying to reduce lines of code because I realized that I am repeating the same equations every time. I am programming a contour map and putting several sources of intensity into it. Until now I put 3 sources, but in the future I want to put more, and that will increase the lines a lot. So I want to see if it is possible to reduce the lines of "source positions" and "Intensity equations". As you can see the last equation is a logaritmic summation of z1, z2 and z3, is it possible to reduce that, any idea?
...ANSWER
Answered 2021-Jun-15 at 15:45You could iterate over certain parts in a loop.
I tried to keep the same format overall and just rearranged the code to show how you might do it.
QUESTION
So... I can sympy.integrate
a normal distribution with mean and standard deviation:
ANSWER
Answered 2021-Jun-15 at 01:38Here's a close case that works:
QUESTION
In the following histogram,
...ANSWER
Answered 2021-Jun-15 at 18:35You could loop through the bars and test whether it is completely to the right of the separation, completely to the left or crosses it. You change the bar's color correspondingly.
When a bar crosses the separator, the bar gets the color for the left area and its size is narrowed to touch the separator. A copy of the bar can be added, with the right-area color and its x-position moved.
QUESTION
I have a red and a blue area between some graphs. Where the two areas overlap, I want the area to be hatched in red and blue, i.e. red and blue stripes (like in the picture, but blue and red instead of white and red). So I want to pass the two colors by their color code onto the function. Is this possible with matplotlib.pyplot.fill_between
? Or how could I do this?
ANSWER
Answered 2021-Jun-15 at 14:21You need to add the hatch
argument to your function call to fill_between
As you have not provided an example, it will look something like this:
QUESTION
Say I had 6 plots I wanted to arrange into a subplot setup in the usual way (plt.subplots etc.).
However for visualisation reasons I need them arranged in the following way:
...ANSWER
Answered 2021-Jun-15 at 12:38Use Figure.add_gridspec
and Figure.add_subplot
QUESTION
I have a list of 9 colors like this:
...ANSWER
Answered 2021-Jun-15 at 12:02Your "expected" behavior isn't possible: if you have 9 colors, and you take 18 equally spaced interpolated values, only the first and the last value will come from your initial set. To have your initial set as part of the list, you need a multiple minus one.
The input to LinearSegmentedColormap.from_list()
can't be rgb values in the range 0-255: they need to be float values in the range 0-1. Also, the N=
parameter will be the number of internally stored values. If you set N
equal to the original number of colors, no interpolated colors will be calculated. For most flexibility you can set N to 256.
Afterwards, you can multiply the values again by 255 to get rgb values in the range 0-255.
QUESTION
Good morning,
I am creating an animation by connecting 6 nodes coordinates at 10 different time steps.
I start with a test: I first create a static plot for a time equal to 2 (for example) and I get the exact static plot that I am expecting: all and only the consecutive nodes are connected.
Then I create the animation. Unfortunately, the animated plot connects the nodes in the wrong way. You can see that the animation connects the consecutive nodes, but also the second and the second to last nodes.
Any idea why? Thanks
...ANSWER
Answered 2021-Jun-15 at 11:52The issue is that in your static plot, you have actually created a list of Line2D
objects (try printing line1
and you will see its not a single instance).
But, in the animation function, you just create a single Line2D
instance to set the xdata
and ydata
for.
We can change to creating a list of Line2D
instances, then loop over them and set the appropriate x and y data for each segment like so:
QUESTION
This python 2 code generates random time series data with a certain noise:
...ANSWER
Answered 2021-Jun-14 at 21:42You can use simple Markov process like this one:
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