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- Python 3.4.3 Tutorials - English
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Why I am getting this error to open the file?
Why I am getting this error to open the file?https://drive.google.com/file/d/1nLx3Vx90CqHOgEmQzgG0SLdVypvRLt3P/view?usp=sharingI am stuck in this problem but you haven't answered from many days.
02-03M 0-10S sc256356
Answer last updated on: July 24, 2023, 4:42 p.m.
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year,profit problem
In [3]: year, profit = loadtxt("/Users/91739/company-a-data.txt", dtype=type(int()))---------------------------------------------------------------------------ValueError Traceback (most recent call last)Input In [3], in <module>----> 1 year, profit = loadtxt("/Users/91739/company-a-data.txt", dtype=type(int()))ValueError: too many values to unpack (expected 2)
02-03M 40-50S Ashwani55
Answer last updated on: Feb. 1, 2022, 6:07 p.m.
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WHY WE USE ** AND WHEN IN IPYTHON3?
WHY WE USE DOUBLE MULTIPLY SIGN ** AND WHEN IN IPYTHON3
05-06M 50-60S khandelwal35051
Answer last updated on: Jan. 19, 2022, 11:29 a.m.
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WHEN WE USE ' ' &" " IN IPYTHON3 & WHY?
when we use ' ' and " " in ipython3 why
05-06M 50-60S khandelwal35051
Answer last updated on: June 5, 2021, 7:46 p.m.
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Enquiring about colour
Dear Sir/Madam,If we use 'b' symbol for blue what is the symbol we use foe brown,black etcother than uing the symbols can we use the complete word with single quote
07-08M 20-30S harshithagiyer@gmail.com
Answer last updated on: March 15, 2021, 12:40 p.m.
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end video question
why is the answer false? is color="b" and color = "blue" different things?
07-08M 10-20S lordprakrit@gmail.com
Answer last updated on: Nov. 11, 2020, 1:13 p.m.
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Scatter Plot
How the change the shape of markers in scatter plot.
04-05M 10-20S HITESH_NINAMA
Answer last updated on: June 5, 2020, 2:27 p.m.
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Loglog()
Sir/MamThe graph is a straight line due to non linear scaling.What does it really mean? I can't understand it.
05-06M 0-10S Hema_R232001
Answer last updated on: May 26, 2020, 9:06 a.m.
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Other Types Of Plots
not able to execute cat command and loadtxt. I hadsame issue in basic video 8(loading dat from file).In [45]: %pylabUsing matplotlib backend: TkAggPopulating the interactive namespace from numpy and matplotlibIn [46]: cat company-a-dat.txt File "<ipython-input-46-e95588f4945f>", line 1 cat company-a-dat.txt ^SyntaxError: invalid syntaxIn [47]: cat company-a-data.txt File "<ipython-input-47-37dbbe0090a4>", line 1 cat company-a-data.txt ^SyntaxError: invalid syntaxIn [48]: cat company-a-data.txt File "<ipython-input-48-37dbbe0090a4>", line 1 cat company-a-data.txt ^SyntaxError: invalid syntaxIn [49]: cat company-a-data.txt File "<ipython-input-49-37dbbe0090a4>", line 1 cat company-a-data.txt ^SyntaxError: invalid syntaxIn [50]: year,profit=loadtxt('company-a-dat.txt) File "<ipython-input-50-6c82ded6f088>", line 1 year,profit=loadtxt('company-a-dat.txt) ^SyntaxError: EOL while scanning string literalIn [51]: year,profit=loadtxt('company-a-dat.txt')---------------------------------------------------------------------------OSError Traceback (most recent call last)<ipython-input-51-9d4241c7c624> in <module>----> 1 year,profit=loadtxt('company-a-dat.txt')c:\users\admin\appdata\local\programs\python\python36\lib\site-packages\numpy\lib\npyio.py in loadtxt(fname, dtype, comments, delimiter, converters, skiprows, usecols, unpack, ndmin, encoding, max_rows) 979 fname = os_fspath(fname) 980 if _is_string_like(fname):--> 981 fh = np.lib._datasource.open(fname, 'rt', encoding=encoding) 982 fencoding = getattr(fh, 'encoding', 'latin1') 983 fh = iter(fh)c:\users\admin\appdata\local\programs\python\python36\lib\site-packages\numpy\lib\_datasource.py in open(path, mode, destpath, encoding, newline) 267 268 ds = DataSource(destpath)--> 269 return ds.open(path, mode, encoding=encoding, newline=newline) 270 271c:\users\admin\appdata\local\programs\python\python36\lib\site-packages\numpy\lib\_datasource.py in open(self, path, mode, encoding, newline) 621 encoding=encoding, newline=newline) 622 else:--> 623 raise IOError("%s not found." % path) 624 625OSError: company-a-dat.txt not found.In [52]: year,profit=loadtxt('company-a-data.txt')---------------------------------------------------------------------------OSError Traceback (most recent call last)<ipython-input-52-b48e6119614d> in <module>----> 1 year,profit=loadtxt('company-a-data.txt')c:\users\admin\appdata\local\programs\python\python36\lib\site-packages\numpy\lib\npyio.py in loadtxt(fname, dtype, comments, delimiter, converters, skiprows, usecols, unpack, ndmin, encoding, max_rows) 979 fname = os_fspath(fname) 980 if _is_string_like(fname):--> 981 fh = np.lib._datasource.open(fname, 'rt', encoding=encoding) 982 fencoding = getattr(fh, 'encoding', 'latin1') 983 fh = iter(fh)c:\users\admin\appdata\local\programs\python\python36\lib\site-packages\numpy\lib\_datasource.py in open(path, mode, destpath, encoding, newline) 267 268 ds = DataSource(destpath)--> 269 return ds.open(path, mode, encoding=encoding, newline=newline) 270 271c:\users\admin\appdata\local\programs\python\python36\lib\site-packages\numpy\lib\_datasource.py in open(self, path, mode, encoding, newline) 621 encoding=encoding, newline=newline) 622 else:--> 623 raise IOError("%s not found." % path) 624 625OSError: company-a-data.txt not found.In [53]: year,profit=loadtxt('company-a-data.txt',unpack=true)---------------------------------------------------------------------------NameError Traceback (most recent call last)<ipython-input-53-de6020824536> in <module>----> 1 year,profit=loadtxt('company-a-data.txt',unpack=true)NameError: name 'true' is not definedIn [54]: year,profit=loadtxt('company-a-data.txt',unpack=True)---------------------------------------------------------------------------OSError Traceback (most recent call last)<ipython-input-54-070812f8b62f> in <module>----> 1 year,profit=loadtxt('company-a-data.txt',unpack=True)c:\users\admin\appdata\local\programs\python\python36\lib\site-packages\numpy\lib\npyio.py in loadtxt(fname, dtype, comments, delimiter, converters, skiprows, usecols, unpack, ndmin, encoding, max_rows) 979 fname = os_fspath(fname) 980 if _is_string_like(fname):--> 981 fh = np.lib._datasource.open(fname, 'rt', encoding=encoding) 982 fencoding = getattr(fh, 'encoding', 'latin1') 983 fh = iter(fh)c:\users\admin\appdata\local\programs\python\python36\lib\site-packages\numpy\lib\_datasource.py in open(path, mode, destpath, encoding, newline) 267 268 ds = DataSource(destpath)--> 269 return ds.open(path, mode, encoding=encoding, newline=newline) 270 271c:\users\admin\appdata\local\programs\python\python36\lib\site-packages\numpy\lib\_datasource.py in open(self, path, mode, encoding, newline) 621 encoding=encoding, newline=newline) 622 else:--> 623 raise IOError("%s not found." % path) 624 625OSError: company-a-data.txt not found.In [55]:
02-03M 10-20S vaishali5780@gmail.com
Answer last updated on: April 24, 2020, 1:32 p.m.
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error while other types of plots
Dear AllI am getting errorn[13]: bar(year,profit)Out[13]: <BarContainer object of 11 artists>kindly help.thanks
00-01M 20-30S gaganj1981@gmail.com
Answer last updated on: April 24, 2020, 10:24 a.m.
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error while loading file on prompt
Dear Allwhile using following command i get error,kindly help,..moreover in python for beginners,video of loading data from files is missing..kindly share In [5]: cat /Users/Gagan/Desktop/company-a-data.txt---------------------------------------------------------------------------NameError Traceback (most recent call last)<ipython-input-5-6df361578c72> in <module>----> 1 cat /Users/Gagan/Desktop/company-a-data.txtNameError: name 'cat' is not defined
00-01M 40-50S gaganj1981@gmail.com
Answer last updated on: April 24, 2020, 10:15 a.m.
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scatter and plot are not same?
I used scatter and plot command as per the exercise given. i plotted them in subplot to have comparison for the given data x=linspace(1,20,100) and y=5x3. I am getting exactly same plot. while in tutorial answer says 'NO'. why this is so?
07-08M 10-20S gourihalde@gmail.com
Answer last updated on: April 22, 2020, 7:12 p.m.
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1
Getting started with IPython -
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Using plot command interactively -
3
Embellishing a plot -
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Saving plots -
5
Multiple plots -
6
Subplots -
7
Additional features of IPython -
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Loading Data From Files -
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Plotting Data -
Other Types Of Plots -
11
Plotting Charts -
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Getting started with Lists -
13
Getting started with for -
14
Getting started with strings -
15
Getting started with files -
16
Parsing data -
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Statistics -
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Getting started with arrays -
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Accessing parts of arrays -
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Image manipulation using Arrays -
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Basic Matrix Operations -
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Advanced Matrix Operations -
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Least square fit -
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Basic datatypes and operators -
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Sequence datatypes -
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Input-output -
27
Conditional Statements -
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Loops -
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Manipulating lists -
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Manipulating strings -
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Getting started with tuples -
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Dictionaries -
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Sets in Python -
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Getting Started with Functions -
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Advanced Features of Functions -
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Using Python Modules -
37
Writing Python Scripts -
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Testing and Debugging -
39
Handling Errors and Exceptions
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Outline:
scatter plot scatter function scatter plot with various arguments logarithmic plot loglog function cat command loadtxt function unpack parameter of loadtxt linspace scatter versus plot
| Width: | 800 | Height: | 608 |
|---|---|---|---|
| Duration: | 00:07:48 | Size: | 5.3 MB |
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