Method query

src/danfojs-base/core/frame.ts:3250–3269

(condition: Series | Array<boolean>, options?: { inplace?: boolean })

    **/
    query(condition: Series | Array<boolean>, options?: { inplace?: boolean }): DataFrame
    query(condition: Series | Array<boolean>, options?: { inplace?: boolean }): DataFrame | void {
        const { inplace } = { inplace: false, ...options }

        if (!condition) {
            throw new Error("ParamError: condition must be specified");
        }

        const result = _iloc({
            ndFrame: this,
            rows: condition,
        }) as DataFrame

        if (inplace) {
            this.$setValues(result.values, false, false)
            this.$setIndex(result.index)
        } else {
            return result
        }

    }

    /**
     * Returns the data types for each column as a Series.