Octave can easily load MATLAB files, for example load('names.m'). But while trying to load file formats other than MATLAB file format like load('names.txt') I am getting an error:
error: load: unable to determine file format of 'names.txt'
Octave supports matlab file formats . But to load text files use the following code in terminal load('-ascii','names.txt'); This will load the text file without showing any error.
Related
I have a huge zipped file with [.gz extension, size 5gb] while i use the split function in UNIX. It is creating file in binary format where as original file was having json files in each line [jsonl].
While i try to read these files programmatically i am getting unexpected symbol since split function has not generated the files in proper format. Can someone assist please
When trying to load a data file into a Jupyter notebook I get the following error message
File b'data_file.csv' does not exist: b'data_file.csv'
Following suggestions I can find online on this problem, I tried the following variations, including specifying the full path and utf encoding
pd.read_csv("data_file.csv")
pd.read_csv("C:\\FULL_PATH\\EBI\\data_file.csv")
pd.read_csv(r"data_file.csv")
pd.read_csv(r"C:\\FULL_PATH\\EBI\\data_file.csv")
pd.read_csv("data_file.csv",encoding='utf-8')
pd.read_csv("C:\\FULL_PATH\\EBI\\data_file.csv",encoding='utf-8')
pd.read_csv(r"data_file.csv",encoding='utf-8')
pd.read_csv(r"C:\\FULL_PATH\\EBI\\data_file.csv",encoding='utf-8')
as well as
pd.read_csv('C:\\FULL_PATH\\EBI\\"data_file.csv"')
However, all of these yield the same error message
File b'data_file.csv' does not exist: b'data_file.csv'
Not sure if it is helpful to add that the Jupyter notebook is being run on a Windows Server 2012 platform. Please note that I checked using os.getcwd() that the full path is indeed as quoted above.
Any suggestions would be much appreciated!
Assuming the file is in your working directory, could you try:
import os
file = os.path.join(os.getcwd(),"data_file.csv")
df = pd.read_csv(file)
Invalid Stream header Error in WEKA - CSV Loading
Unable to load simple CSV file in weka
In the Experimenter->Datasets-> Use relative path (check this box)
From the error message, it looks like you clicked on Open... in the GenericObjectEditor window instead of OK to accept the configuration of the CSVLoader class to load your CSV dataset.
The Open... and Save... buttons are for loading/saving object templates, not for loading/saving the CSV file (you are in the process of loading a CSV file, so a Save button makes no sense for this operation).
With this template functionality, you can maintain a library of commonly used setups for any Weka object (loader, saver, filter, classifier, etc.) and simply load it back into the GenericObjectEditor when you need it.
I am using Community edition 3.0.5 on Windows 10 . I made multiple efforts to execute a LOAD CSV command before being told that such files cannot reside on an external drive. When I moved the file to users/user/ and tried to execute the LOAD CSV command I got the same message "Couldn't load the external resource at: file:/F:/Neo4j%20DBs/Data.gov%20Consumer%20Complaints/Consumer%20Complaints%20DB/import/Users/CharlieOh/Consumer_Complaints.csv" in spite of the fact the command I entered was
"LOAD CSV WITH HEADERS FROM
'file:///Users/CharlieOh/Consumer_Complaints.csv' AS line
WITH line
LIMIT 1
RETURN line"
I tried to locate the file neo4j.conf and could only find C:\Program Files (x86)\Neo4j Community 3.2.2\Neo4j Community.install4j\i4jparams.conf . I even deleted the old DB and recreated the small amount of data and got the same error, which seems to indicate that the LOAD CSV function is totally useless across all my neo4j databases. BTW the %20 in the file specification was due to suggestions on Stack Overflow as well as using underscores to avoid any use of blank spaces in the file specification. None of it worked and now that I believe that I may have solved the problem by putting the csv file in the user directory, the LOAD CSV function won't let me do it. One last thing, I am following the YouTube video https://www.youtube.com/watch?v=Eh_79goBRUk to learn how to load a csv file into neo4j.
The csv file needs to go in the import directory of the specific database. With Neo4j Desktop this is easy to identify by clicking on the Manage button of the database and then the open folder button. It looks like you've found it.
Once the database import directory is located, you specify it in the LOAD CSV with the statement LOAD CSV WITH HEADERS FROM 'file:///" + FN + "'where FN is your file name, including the csv extension. You do NOT use the full path; that is assumed.
Trying CSV import to Neo4j - doesn't seem to be working.
I'm loading a local file using the syntax:
LOAD CSV WITH HEADERS FROM "file:///location/local/my.csv" AS csvDoc
Am wondering if there's something wrong with my CSV file, or if there's some syntax problem here.
If you didn't read the title, the error is:
Couldn't load the external resource at: file:/location/local/my.csv
[Neo.TransientError.Statement.ExternalResourceFailure]
Neo4j seems to need a full path spec to get a file on the local system.
On linux or mac try
LOAD CSV FROM "file:/Users/you/location/local/my.csv"
On windows try
LOAD CSV FROM "file://c:/location/local/my.csv"
.
In the browser interface (Neo4j 3.0.3, MacOS 10.11) it looks like Neo4j prefixes your file path with $path_to_graph_database/import. So you could move your files there. If you are using a command line tool, then see this SO question.
Easy solution:
Once you choose your database location (in my case ReactomeGraphDB60)...
here I placed my ddbb
...go to that folder, and create inside a folder called "import".
Later in the cypher query write (as an example):
LOAD CSV WITH HEADERS FROM "file:///ILClasiffStruct.csv" AS row
CREATE (n:Interleukines)
SET n = row