大约有 47,000 项符合查询结果（耗时：0.0378秒） [XML]
How to iterate over rows in a DataFrame in Pandas
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2951
DataFrame.iterrows is a generator which yields both the index and row (as a Series):
import pa...
Creating an empty Pandas DataFrame, then filling it?
... answered Jun 25 '19 at 2:51
cs95cs95
231k6060 gold badges390390 silver badges455455 bronze badges
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Compute a confidence interval from sample data
...as np
import scipy.stats
def mean_confidence_interval(data, confidence=0.95):
a = 1.0 * np.array(data)
n = len(a)
m, se = np.mean(a), scipy.stats.sem(a)
h = se * scipy.stats.t.ppf((1 + confidence) / 2., n-1)
return m, m-h, m+h
you can calculate like this way.
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Select by partial string from a pandas DataFrame
... answered Mar 25 '19 at 9:58
cs95cs95
231k6060 gold badges390390 silver badges455455 bronze badges
...
Matplotlib tight_layout() doesn't take into account figure suptitle
...e very tight_layout call as follows:
fig.tight_layout(rect=[0, 0.03, 1, 0.95])
As it's stated in the documentation (https://matplotlib.org/users/tight_layout_guide.html):
tight_layout() only considers ticklabels, axis labels, and titles. Thus, other artists may be clipped and also may overlap...
Build an ASCII chart of the most commonly used words in a given text [closed]
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206
shell, grep, tr, grep, sort, uniq, sort, head, perl
~ % wc -c wfg
209 wfg
~ % cat wfg
egrep -oi \\b[a-z]+|tr A-Z a-z|egrep -wv 'the|and|of|to|a|i|it|in|or|is'|sort|uniq -c|sort -nr|head -22|perl -lape'($f,$w)=@F;$.>1or($q,$x)=($f,76-length$w);$b="_"x($f/$q*$x);$_="|$b| $w ";$.>1or$_="...
Drop columns whose name contains a specific string from pandas DataFrame
... edited Aug 24 at 15:54
cs95
231k6060 gold badges391391 silver badges456456 bronze badges
answered May 30 '17 at 22:20
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Is it possible to have multiple statements in a python lambda expression?
...1, 97, 98, 3, 70, 93, 1, 36, 87, 47, 20, 73, 45, 0, 65, 57, 6, 76, 16, 85, 95, 61, 4, 77, 21, 81, 82, 30, 53, 51, 42, 67, 74, 8, 15, 83, 5, 9, 78, 66, 44, 27, 19, 91, 90, 18, 49, 86, 22, 75, 71, 88, 92, 33, 89, 69, 80, 38]
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21...
conversion from string to json object android
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Remove the slashes:
String json = {"phonetype":"N95","cat":"WP"};
try {
JSONObject obj = new JSONObject(json);
Log.d("My App", obj.toString());
} catch (Throwable t) {
Log.e("My App", "Could not parse malformed JSON: \"" + json + "\"");
}
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Add legend to ggplot2 line plot
... 22.41, 21.63, 22.43, 22.29, 21.89, 20.52, 19.71, 20.73,
23.51, 23.13, 22.95, 21.95, 21.91, 20.72, 20.45, 19.42, 19.97,
19.61), TempMin = c(19.34, 19.14, 18.34, 17.49, 16.75, 16.75,
16.88, 16.82, 14.82, 16.01, 16.88, 17.55, 16.75, 17.22, 19.01,
16.95, 17.55, 15.21, 14.22, 16.42)), .Names = c("fe...