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indices Examples and Code Snippets
def locate_tensor_element(formatted, indices):
"""Locate a tensor element in formatted text lines, given element indices.
Given a RichTextLines object representing a tensor and indices of the sought
element, return the row number at which the
def recall_at_top_k(labels,
predictions_idx,
k=None,
class_id=None,
weights=None,
metrics_collections=None,
updates_collections=No
def searchsorted(sorted_sequence,
values,
side="left",
out_type=dtypes.int32,
name=None):
"""Searches for where a value would go in a sorted sequence.
This is not a method for c
Community Discussions
Trending Discussions on indices
QUESTION
entry = [["D 300"],["D 300"],["W 200"],["D 100"]]
def bankbalance(entry):
deposits = [float(entry[ent][0][2:]) for ent in entry if ("D" in entry[ent][0])]
withdrawals = [float(entry[ent][0][2:]) for ent in entry if ("W" in entry[ent][0])]
global balance
balance = sum(deposits) - sum(withdrawals)
bankbalance(entry)
Print(f'Current balance is {balance}')
...ANSWER
Answered 2021-Jun-15 at 11:02ent
is not the index, it is an element of entry, so you don't need entry[ent][0][2:]
, what you need is ent[0][2:]
.
Fixed code:
QUESTION
I have the following output from an API:
...ANSWER
Answered 2021-Jun-15 at 19:31I don't see what the id
column is needed for.
So see if you can work with this:
QUESTION
Here are the 3 rows of my sample json.
...ANSWER
Answered 2021-Jun-11 at 04:35I think you need to take the actual raw strings of JSON data and convert them into a list of objects (dict
s).
QUESTION
So I have dataframe (result of bad joining I suppose) which looks like this:
Index col_a col_b col_a col_b col_a col_b First 1 62 NaN NaN NaN NaN Second NaN NaN 36 52 NaN NaN Third NaN NaN NaN NaN 25 26And I want to squeeze it such that same column names align having only one column each as in:
Index col_a col_b First 1 62 Second 36 52 Third 25 26It is guaranteed that there will be only one non-nan value for each row and column combination which I checked using a couple of notna()
checks. There are infact a large number of columns and a large number of indices. I just posted a sample dataframe for simple problem reproduction. I tried looking at squeeze() and now trying to combine them via splitting and joining but far from an ideal solution
ANSWER
Answered 2021-Jun-15 at 17:13try via Transpose(T)
attribute,dropna()
and apply()
method:
QUESTION
Here is the question:
...ANSWER
Answered 2021-Jun-15 at 16:06You have to assign the number of elements of the array to return (2
in this case) to what the argument returnSize
points at (*returnSize
) to tell the judge system how large the array you returned is.
QUESTION
I am trying to find the indices of x numbers in a list that add up to a specific target.
When I input the following code in python, no output is given.
What am I missing here?
Thanks a lot in advance, Matteo
...ANSWER
Answered 2021-Jun-15 at 02:01The following is an approach using recursion, where find_ind()
is what you want.
QUESTION
Basically the title. I'm trying to store information about duplicate objects in a list of objects, but I'm having a hard time finding anything related to this. I've devised this for now, but I'm not sure if this is the best way for what I want to do :
...ANSWER
Answered 2021-Jun-15 at 01:26Use collections.Counter
.
QUESTION
The documentation for convertMaps
says that it supports the following transformation:
(CV_32FC1, CV_32FC1)→(CV_16SC2, CV_16UC1)
This is the most frequently used conversion operation, in which the original floating-point maps (seeremap
) are converted to a more compact and much faster fixed-point representation. The first output array contains the rounded coordinates and the second array (created only whennninterpolation=false
) contains indices in the interpolation tables.
I understand that (CV_32FC1, CV_32FC1)
is encoding (x, y)
coordinates as floats. How does the fixed point format work? What is encoded in each 2-channel entry of the CV_16SC2
matrix? What interpolation tables does the CV_16UC1
matrix index into?
ANSWER
Answered 2021-Jun-14 at 23:34I'm going by what I remember from the last time I investigated this. Grain of salt and all that.
the fixed point format splits the integer and fractional parts of your (x,y)-coordinates into different maps.
it's "compact" in that CV_32FC2
or 2x CV_32FC1
uses 8 bytes per pixel, while CV_16SC2 + CV_16UC1
uses 6 bytes per pixel. also it's integer-only, so using it can free up floating point compute resources for other work.
the integer parts go into the first map, which is 2-channel. no surprises there.
the fractional parts are converted to 5-bit integers, i.e. they're multiplied by 32. then they're packed together, lowest 5 bits from one coordinate, higher next 5 bits from the other one.
the resulting funny number has a range of 0 .. 1023
, or 0b00000_00000 .. 0b11111_11111
, which encodes fractional parts (0.0, 0.0) and (0.96875, 0.96875) respectively (that's 31/32).
during remap...
the integer map is used to look up, for every resulting pixel, several pixels in the source image required for interpolation.
the fractional map is taken as an index into an "interpolation table", which is internal to OpenCV. it contains whatever factors and shifts required to correctly blend the several sampled pixels into one resulting pixel, all using integer math. I guess there are multiple tables, one for each interpolation method (linear, cubic, ...).
QUESTION
I am doing local development on my box and I have deleted some indices that were useful. I wasn't doing any snapshotting, is it possible to restore those indices if I ran the delete command about 5-6 hours ago and it acknowledged with a true.
...ANSWER
Answered 2021-Jun-14 at 22:54No, it is not possible, if you deleted an index and do not have snapshots of it, you can't recover the data.
QUESTION
I have the following problem and I am wondering if there is a faster and cleaner implementation of the removeLastChar()
function. Specifically, if one can already remove the last vowel without having to find the corresponding index first.
PROBLEM
Write a function that removes the last vowel in each word in a sentence.
Examples:
removeLastVowel("Those who dare to fail miserably can achieve greatly.")
"Thos wh dar t fal miserbly cn achiev gretly."
removeLastVowel("Love is a serious mental disease.")
"Lov s serios mentl diseas"
removeLastVowel("Get busy living or get busy dying.")
"Gt bsy livng r gt bsy dyng"
Notes: Vowels are: a, e, i, o, u (both upper and lowercase).
MY SOLUTION
A PSEUDOCODE
- Decompose the sentence
- For each word find the index of the last vowel
- Then remove it and make the new "word"
- Concatenate all the words
CODE
...ANSWER
Answered 2021-Jun-14 at 22:49This can be more easily achieved with a regex substitution that removes a vowel that's followed by zero or more consonants up to a word boundary:
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