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How to Solve R Error: invalid (do_set) left-hand side to assignment
This error occurs if you try to create a variable with a name beginning with a number. You can solve this error by ensuring the variable starts with a letter or a dot. You can see the documentation for syntactically valid names by typing the following command:...
How to Find the Column Name with the Largest Value for Each Row using R
You can find the column name with the largest value across all rows using the colnames() function together with the apply function. For example, df$largest_col <-colnames(df)[apply(df, 1, which.max)] This tutorial will go through how to perform this task with code...
How to Solve Python TypeError: can only concatenate tuple (not “str”) to tuple
This error occurs when we try to concatenate a tuple with a string. You can solve the error by ensuring that you concatenate either two tuples or two strings. For example, tup = ('hexagon', 'pentagon', 'rhomboid') tup2 = ('octagon',) combined = tup + tup2...
How to Solve Python ValueError: cannot set a row with mismatched columns
This error occurs when you try to add a new row to a DataFrame but the number of values does not match the number of columns in the existing DataFrame. You can solve this error by ensuring the number of values in the new row matches the number of columns in the...
How to Solve Python ValueError: You are trying to merge on object and int64 columns
This error occurs when you try to merge two DataFrames but the column in one DataFrame is type int64 and the other column is type object. You can solve this error by converting the column of type object to int64 using the astype() method before merging. For example,...
How to Solve R Error in FUN: invalid ‘type’ (character) of argument
This error occurs if you try to perform a mathematic operation on a character vector. You can solve this error by converting the characters to numeric values using the as.numeric() function. For example, x <- c("2", "3", "4", "5") x_num <- as.numeric(x)...
How to Solve R Error: contrasts can be applied only to factors with 2 or more levels
This error occurs when you try to fit a regression model and one or more of the predictor variables are either factor or character and have only one unique value. You can solve this error by using the lapply() function to display each of the unique values for each...
How to Solve R Error as.Date.numeric(x) : ‘origin’ must be supplied
This error occurs when you try to convert a number to a date without providing an origin date. You can solve this error by providing a date as an origin argument to the as.Date function. For example, as.Date(34291, origin = "1900-01-01") This tutorial will go through...
How to Solve Python AttributeError: ‘str’ object has no attribute ‘uppercase’
This error occurs when you try to call uppercase() on a string to convert the characters to uppercase. You can solve the error by calling the string method upper() to convert the string to uppercase. For example, my_str = 'python is fun' my_str_upper = my_str.upper()...
How to Solve Python AttributeError: ‘int’ object has no attribute ‘randint’
This error occurs if you try to call randint() method on an integer. You can solve this error by not naming an object random, which will override the reserved name for the built-in module random. For example, import random my_int = 10 random_int = random.randint(1,10)...
Suf is a senior advisor in data science with deep expertise in Natural Language Processing, Complex Networks, and Anomaly Detection. Formerly a postdoctoral research fellow, he applied advanced physics techniques to tackle real-world, data-heavy industry challenges. Before that, he was a particle physicist at the ATLAS Experiment of the Large Hadron Collider. Now, he’s focused on bringing more fun and curiosity to the world of science and research online.