I have an array of timestamps in the format (HH:MM:SS.mmmmmm) and another array of floating point numbers, each corresponding to a value in the timestamp array. Can I plot time on the x axis and the numbers on the y-axis using Matplotlib? I was trying to, but somehow it was only accepting arrays of floats. … Read more
Seems pretty Googleable but haven’t been able to find something online that works. I’ve tried both sns.boxplot(‘Day’, ‘Count’, data= gg).title(‘lalala’) and sns.boxplot(‘Day’, ‘Count’, data= gg).suptitle(‘lalala’). None worked. I think it might be because I’m also working with matplotlib. 5 Answers 5
I have a few Pandas DataFrames sharing the same value scale, but having different columns and indices. When invoking df.plot(), I get separate plot images. what I really want is to have them all in the same plot as subplots, but I’m unfortunately failing to come up with a solution to how and would highly … Read more
Suppose I have three data sets: X = [1,2,3,4] Y1 = [4,8,12,16] Y2 = [1,4,9,16] I can scatter plot this: from matplotlib import pyplot as plt plt.scatter(X,Y1,color=”red”) plt.scatter(X,Y2,color=”blue”) plt.show() How can I do this with 10 sets? I searched for this and could find any reference to what I’m asking. Edit: clarifying (hopefully) my question … Read more
I have been playing with Numpy and matplotlib in the last few days. I am having problems trying to make matplotlib plot a function without blocking execution. I know there are already many threads here on SO asking similar questions, and I ‘ve googled quite a lot but haven’t managed to make this work. I … Read more
I’m trying to use my own labels for a Seaborn barplot with the following code: import pandas as pd import seaborn as sns fake = pd.DataFrame({‘cat’: [‘red’, ‘green’, ‘blue’], ‘val’: [1, 2, 3]}) fig = sns.barplot(x = ‘val’, y = ‘cat’, data = fake, color=”black”) fig.set_axis_labels(‘Colors’, ‘Values’) However, I get an error that: AttributeError: ‘AxesSubplot’ … Read more
I have too many ticks on my graph and they are running into each other. How can I reduce the number of ticks? For example, I have ticks: 1E-6, 1E-5, 1E-4, … 1E6, 1E7 And I only want: 1E-5, 1E-3, … 1E5, 1E7 I’ve tried playing with the LogLocator, but I haven’t been able to … Read more
Say I have an image of size 3841 x 7195 pixels. I would like to save the contents of the figure to disk, resulting in an image of the exact size I specify in pixels. No axis, no titles. Just the image. I don’t personally care about DPIs, as I only want to specify the … Read more
I am currently practicing matplotlib. This is the first example I practice. #!/usr/bin/python import matplotlib.pyplot as plt radius = [1.0, 2.0, 3.0, 4.0] area = [3.14159, 12.56636, 28.27431, 50.26544] plt.plot(radius, area) plt.show() When I run this script with python ./plot_test.py, it shows plot correctly. However, I run it by itself, ./plot_test.py, it throws the followings: … Read more
Using Matplotlib, I want to plot a 2D heat map. My data is an n-by-n Numpy array, each with a value between 0 and 1. So for the (i, j) element of this array, I want to plot a square at the (i, j) coordinate in my heat map, whose color is proportional to the … Read more
