Import Data, Analyze, Export and Plot in Python

A common task in data science is to analyze data from an external source that may be in a text or comma separated value (CSV) format. By importing the data into Python, data analysis such as statistics, trending, or calculations can be made to synthesize the information into relevant and actionable information. This demonstrates how to import data, perform a basic analysis such as average values, trend the results, save the figure, and export the results to another text file.

[TheBluCypher]

Now this is the type of quality content I've been looking for. Short and straight to the point from beginning to end. Thank You!

[rebeccafindlay]

This was a great tutorial thanks! Id love to know how to pull out some specific rows from the data file, for instance, every time one of the sensors recorded a certain value or something like that.

[michaelshin]

Never seen that way to extract time!
Thanks!

[majicyoung]

your video is you for information. I am also working in similar type of application where I have to compare words of same column and make a graphical output.

[aldin]

Hi, very good video. But as many here, I also have a problem with ValueError-couldn't convert string to float. My exercise is to read and plot the points from point cloud data (which is get via camera). Btw, it shows in terminal data from text file, but I am not sure if it is ok. Plot is impossible. I have 171 rows with 224 combination of X, Y, Z, Intensity and Noise for every row. If you have any advice how to do that, I will be very thankful.

[krisdang]

Thanks a lot! Im leaving PyCharm for Spyder because of this variable explorer window

[trimagazi]

Wau that is really a wonderful thanks you teacher but I'm doubt, I would like to know if it is possible to make a graphic as you did using a txt file.

[mrerike]

Hi! Im a novice at this. Can you explain briefly or link to a video how the columns and rows are written. I have a problem with this. To take away the poor sensors you write sensors = data_file[:, 1:5]. As I understand the first colon without numbers means all rows. The second 1:5 is the columns. So in the text file this is column 2-6, because Python starts with 0 and column 1 is the the time? That I dont understand is that column 5(Python) is then the first nan column. Does column [1:5] mean from 1 until 5 but not including 5?

[claudiojose]

easy to understand... great explanation

[senakalay]

Thank you for everything but I have a problem. Why am I getting this error?
ValueError: could not convert string to float: '1, 61537E+18'

[maximebrunet-duval]

I have generated my graph in a new window. But when I go to see if it's also in the .txt file it's empty. And if I try and generate my graph after writing in the .txt file the graph is empty. What the hell?

[yrgs]

"data_file.txt not found" always that happen i use spyder and pycharm

[usmannomani]

I have one polygon which is in Tab file I want to import in Python how can i do ? I have some data which already loaded in python but I want to extract only that data which is in the specific polygon.How can I do that which library will be useful for this purpose

[recoveryfactordoubler]

I am trying to use this method to import 3 columns of data from a text file, when I try to do it the same way as the video, I get an error saying " could not convert string to float"

[muamarjasim]

I have problem with path of file in reading, open not work because said file not exist!

[donaf.]

Hay, i am trying to read text file from file dialog (path) and place the first line into the the text edit field (Gui) due to calculation, how is it?

[mattreece]

funny how youtube automatically refresh the page even though i paused the vid and already saw one ad yesterday... so thirsty for add revenue