我使用Microsoft Visual Studio编译代码。我在条件from bokeh.io import gridplot, show, output_notebook, output_file
from bokeh.plotting import figure
from bokeh.models import HoverTool, ColumnDataSource, CustomJS, Span
output_notebook()
x = list(range(11))
y1 = x
y2 = [10 - i for i in x]
source = ColumnDataSource({'x0': [0], 'y0': [2], 'x1': [10], 'y1': [2]})
# create a new plot
s1 = figure(width=250, plot_height=250, tools="", title=None)
cr1 = s1.circle(x, y1, size=10, color="navy", alpha=0.5)
sr1 = s1.segment(x0='x0', y0='y0', x1='x1', y1='y1', color='red', alpha=1, line_width=1, source=source, )
sp1 = Span(location=source.data['y0'][0], dimension='width', line_color='green')
s1.renderers.extend([sp1,])
# create another one
s2 = figure(width=250, height=250, title=None)
cr2 = s2.triangle(x, y1, size=10, color="firebrick", alpha=0.5)
sr2 = s2.segment(x0='x0', y0='y0', x1='x1', y1='y1', color='red', alpha=1, line_width=1, source=source, )
# put all the plots in an HBox
p = gridplot([[s1,s2],[]])
code = """
var data = {'x0': [], 'y0': [], 'x1': [], 'y1': []};
var cdata = circle.get('data');
var indices = cb_data.index['1d'].indices;
for (i=0; i < indices.length; i++) {
ind0 = indices[i];
data['x0'].push(0);
data['y0'].push(cdata.y[ind0]);
data['x1'].push(10);
data['y1'].push(cdata.y[ind0]);
}
segment.set('data', data);
"""
callback1 = CustomJS(args={'circle': cr1.data_source, 'segment': sr2.data_source}, code=code)
s1.add_tools(HoverTool(tooltips=None, callback=callback1, renderers=[cr1]))
callback2 = CustomJS(args={'circle': cr2.data_source, 'segment': sr2.data_source}, code=code)
s2.add_tools(HoverTool(tooltips=None, callback=callback2, renderers=[cr2]))
# show the results
show(p)
的while循环中收到此错误：
'＆gt;'：没有从'int'转换为'int *'
以下是代码：
Col1 <- sample(c(0,1), 50, replace = TRUE)
Col2 <- round(rnorm(50),2)
dat <- data.frame(Col1, Col2)
dat$Col1 <- factor(dat$Col1)
t.test(Col2 ~ Col1, data = dat)
有人可以帮我理解错误吗？
答案 0 :(得分：1)
你的逻辑运算符&&中有一个空格：
while (i >= 0 & & a[i] > k){
这相当于
while (i >= 0 & &a[i] > k) {
这是i >= 0和&a[i] > k之间的按位AND运算（两个布尔值）。
&a[i] > k将a[i]（int *）的地址与k（int）进行比较。因此错误。