mode

问题 I have a data frame and i'd like to get the mode of a specific column. i'm using: freq_mode = df.mode()['my_col'][0] However I get the error: ValueError: ('The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()', 'occurred at index my_col') I'm guessing it's because I have few mode that are the same. I need any of the mode, it doesn't matter. How can I use any() to get any of the mode existed? 回答1: For me your code working nice with sample data. If

问题 I've been learning to use the mode attribute with XSLT and was wondering if there's a way to test for it within a template, such as in an xsl:if statement? I've only seen it used at the xsl:template level and maybe that's the only way. Say I want to add a "../" in front of a path attribute (@href), but only if mode="print": <xsl:template name="object" mode="#all"> <img> <xsl:attribute name="src"> <xsl:if test="mode='print'"><xsl:text>../</xsl:text></xsl:if> <xsl:value-of select="@href"/> <

问题 Hi I'm using built in android camera: android.media.action.IMAGE_CAPTURE and what I'm trying to achieve, is make a TOAST appear after turning the camera on. The toast works fine, but it always shows in landscape mode. What's funny, I'm starting the toast before calling the intent with IMAGE_CAPTURE, and the toast for few moments shows in proper orientation, but then after turning into camera mode, it automatically flips to the landscape mode. Because of the idea of my application, I would

问题 Hi I'm using built in android camera: android.media.action.IMAGE_CAPTURE and what I'm trying to achieve, is make a TOAST appear after turning the camera on. The toast works fine, but it always shows in landscape mode. What's funny, I'm starting the toast before calling the intent with IMAGE_CAPTURE, and the toast for few moments shows in proper orientation, but then after turning into camera mode, it automatically flips to the landscape mode. Because of the idea of my application, I would

问题 Hi I'm using built in android camera: android.media.action.IMAGE_CAPTURE and what I'm trying to achieve, is make a TOAST appear after turning the camera on. The toast works fine, but it always shows in landscape mode. What's funny, I'm starting the toast before calling the intent with IMAGE_CAPTURE, and the toast for few moments shows in proper orientation, but then after turning into camera mode, it automatically flips to the landscape mode. Because of the idea of my application, I would

来源： https://stackoverflow.com/questions/16720682/pil-cannot-write-mode-f-to-jpeg

来源： https://stackoverflow.com/questions/63612880/looping-through-2-dataframes-and-take-mode-of-specific-columns

问题 I have wounder`d for a while about how to get mode in array. That elements that are the same in array would be put together. For ex. [Alex, Steven, Georg, Alice, Alex, Georg]; return would be: Alex: 2, Steven: 1, Georg: 2, Alice:1; I wrote the code but it works only for numbers from 1 to 10. And for sure there is a better way. (I don`t think you need my code but will paste it anyway.) var mode = function (data){ var result1 = data.filter(function (verde) {return verde === 1}); var result2 =

问题 IFERROR(INDEX($I$7:$I,MODE(IF($I$7:$I<>"",MATCH($I$7:$I,$I$7:$I,0)))),"No data") With this formula, which calculates the most common text value, I need to have the 2nd most common. Column I content: Apple Orange Apple Apple Orange In this example, I need to get Orange . How is that possible? I can't figure how. 回答1: You can extract the most frequent item in the list with an array formula. =INDEX(MyList,MATCH(MAX(COUNTIF(MyList,MyList)),COUNTIF(MyList,MyList),0)) Note that an array formula

问题 What is the mode for open(..., mode) in Python 3 that opens a file that create if does not exist do NOT truncate binary mode I tested r+b but that fails on missing file, w+b truncates it, and a+b seem to turn all writes into appends, while I need to overwrite some data. 回答1: A workaround is to catch the exception and open with another mode. I would still accept a better solution. try: self.file = open(filename, "r+b") except FileNotFoundError: self.file = open(filename, "w+b") 回答2: This is a